Merge pull request #4 from prefrontalcortex/add-blend-test-asset

Add AlphaBlendModeTest
usd-wg · Jun 4, 2022 · 3a7fc94 · 3a7fc94
2 parents d083867 + 4004766
commit 3a7fc94
Show file tree

Hide file tree

Showing 13 changed files with 746 additions and 0 deletions.
diff --git a/...aBlendModeTest/0/AlphaBlendModeTest_image0_e93a912e744ba8675c680a67d486a70c.png b/...aBlendModeTest/0/AlphaBlendModeTest_image0_e93a912e744ba8675c680a67d486a70c.png
diff --git a/...aBlendModeTest/0/AlphaBlendModeTest_image1_b7b61473c6009b01dfe9c6950d4d5ed6.png b/...aBlendModeTest/0/AlphaBlendModeTest_image1_b7b61473c6009b01dfe9c6950d4d5ed6.png
diff --git a/...aBlendModeTest/0/AlphaBlendModeTest_image2_d151f95487c02f2a13820ace88f0370d.png b/...aBlendModeTest/0/AlphaBlendModeTest_image2_d151f95487c02f2a13820ace88f0370d.png
diff --git a/...aBlendModeTest/0/AlphaBlendModeTest_image3_801ab6939d4d9c35de01996b52bc1650.png b/...aBlendModeTest/0/AlphaBlendModeTest_image3_801ab6939d4d9c35de01996b52bc1650.png
diff --git a/test_assets/AlphaBlendModeTest/AlphaBlendModeTest.usd b/test_assets/AlphaBlendModeTest/AlphaBlendModeTest.usd
diff --git a/test_assets/AlphaBlendModeTest/AlphaBlendModeTest.usdc b/test_assets/AlphaBlendModeTest/AlphaBlendModeTest.usdc
diff --git a/test_assets/AlphaBlendModeTest/AlphaBlendModeTest.usdz b/test_assets/AlphaBlendModeTest/AlphaBlendModeTest.usdz
diff --git a/test_assets/AlphaBlendModeTest/Readme.md b/test_assets/AlphaBlendModeTest/Readme.md
@@ -0,0 +1,40 @@
+# Alpha Blend Mode Test
+
+## Screenshot
+
+![screenshot](screenshots/20220603-usdview.png)
+_usdview 21-05_
+
+## Description
+
+This model tests UsdPreviewSurface alpha modes and blending, especially the interplay between opacity, opacityThreshold, and diffuseColor.  
+
+It's a conversion from the glTF test asset with the same name found here: https://github.com/KhronosGroup/glTF-Sample-Models/blob/master/2.0/AlphaBlendModeTest/README.md.
+
+![glTF reference](screenshots/gltf-reference.jpg)
+_glTF reference_
+
+## Problem: Opacity Values Used in Opaque Mode
+
+ ![Blender 3.1](screenshots/20220603-blender.png)
+ _Blender 3.1_
+
+## Problem: Opacity Values combined with opacityThreshold values
+
+ ![QuickLook on iOS 15.6](screenshots/20220603-QuickLook.jpeg)
+ _QuickLook on iOS 15.6_
+
+ ## Problem: Incorrect use of default opacityTreshold (?)
+
+ ![Omniverse VIEW 2022.1](screenshots/20220603-Omniverse.png)
+ _Omniverse VIEW 2022.1_
+
+## License Information
+
+This conversion bears the same license as the [source asset](https://github.com/KhronosGroup/glTF-Sample-Models/blob/master/2.0/AlphaBlendModeTest/README.md).  
+
+Copyright 2018 Analytical Graphics, Inc.
+CC-BY 4.0 https://creativecommons.org/licenses/by/4.0/
+Model and textures by Ed Mackey.  
+
+Conversion by Felix Herbst.
diff --git a/test_assets/AlphaBlendModeTest/screenshots/20220603-Omniverse.png b/test_assets/AlphaBlendModeTest/screenshots/20220603-Omniverse.png
diff --git a/test_assets/AlphaBlendModeTest/screenshots/20220603-QuickLook.jpeg b/test_assets/AlphaBlendModeTest/screenshots/20220603-QuickLook.jpeg
diff --git a/test_assets/AlphaBlendModeTest/screenshots/20220603-blender.png b/test_assets/AlphaBlendModeTest/screenshots/20220603-blender.png
diff --git a/test_assets/AlphaBlendModeTest/screenshots/20220603-usdview.png b/test_assets/AlphaBlendModeTest/screenshots/20220603-usdview.png
diff --git a/test_assets/AlphaBlendModeTest/screenshots/gltf-reference.jpg b/test_assets/AlphaBlendModeTest/screenshots/gltf-reference.jpg