Make Samples more user-friendly: ExportMesh, ImportProcessor, UsdTimelinePlayable

Author: lee-aandrew

package/com.unity.formats.usd/Samples/ExportMesh/ExportMesh.unity

@@ -13,6 +13,8 @@
 // limitations under the License.
 
 using System;
+using System.IO;
+using UnityEditor;
 using UnityEngine;
 using USD.NET;
 
@@ -130,7 +132,7 @@ public void StartRecording()
                 }
                 else
                 {
-                    m_usdScene = Scene.Create(m_usdFile);
+                    m_usdScene = Scene.Create(Path.Combine(Application.dataPath, m_usdFile));
                 }
 
                 // USD operates on frames, so the frame rate is required for playback.
@@ -280,6 +282,11 @@ void LateUpdate()
             }
         }
 
+        void OnApplicationQuit()
+        {
+            AssetDatabase.Refresh();
+        }
+
         public static void Export(GameObject root,
             Scene scene,
             BasisTransformation basisTransform)

package/com.unity.formats.usd/Samples/ExportMesh/ExportMeshExample.cs

@@ -39,11 +39,16 @@ public void PostProcessComponents(PrimMap primMap, SceneImportOptions sceneImpor
             }
         }
 
+        public void RefreshUSD()
+        {
+            this.GetComponent<UsdAsset>().Reload(true);
+        }
+
         void Reset()
         {
             matchExpression = "Geom";
             isNot = false;
-            matchType = EMatchType.Wildcard;
+            matchType = EMatchType.Regex;
             compareAgainst = ECompareAgainst.UsdName;
         }
 
@@ -91,6 +96,8 @@ void DoCombineMeshes(Transform current)
             current.gameObject.SetActive(true);
             foreach (Transform child in current)
             {
+                if (child.name == "Materials")
+                    continue;
                 child.gameObject.SetActive(false);
             }
 
@@ -111,7 +118,10 @@ void DoCombineMeshes(Transform current)
                 MeshRenderer mr = sub.gameObject.GetComponent<MeshRenderer>();
                 if (mr == null) mr = sub.gameObject.AddComponent<MeshRenderer>();
 
-                mf.mesh = new Mesh();
+                var combinedMesh = new Mesh();
+                combinedMesh.name = "CombinedMesh";
+
+                mf.mesh = combinedMesh;
                 if (vertexCount > kVertexLimit)
                 {
                     mf.sharedMesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt32;
@@ -132,7 +142,7 @@ void DoCombineMeshes(Transform current)
                 {
                     if (materials.Count == 0)
                     {
-                        Debug.LogError("No material to assign to combined mesh for " + current.name);
+                        Debug.Log("No material to assign to combined mesh for " + current.name);
                     }
                     else
                     {

package/com.unity.formats.usd/Samples/ImportProcessor/CombineMeshes.cs

@@ -0,0 +1,33 @@
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using UnityEditor;
+using UnityEngine;
+
+namespace Unity.Formats.USD.Examples
+{
+    [CustomEditor(typeof(CombineMeshes))]
+    public class CombineMeshesEditor : Editor
+    {
+        public override void OnInspectorGUI()
+        {
+            DrawDefaultInspector();
+
+            CombineMeshes combineMeshesScript = (CombineMeshes)target;
+            if (GUILayout.Button("Click Me to Refresh USD Asset"))
+            {
+                combineMeshesScript.RefreshUSD();
+            }
+        }
+    }
+}
+

package/com.unity.formats.usd/Samples/ImportProcessor/Editor.meta

@@ -0,0 +1,33 @@
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using UnityEditor;
+using UnityEngine;
+
+namespace Unity.Formats.USD.Examples
+{
+    [CustomEditor(typeof(SetHideFlags))]
+    public class SetHideFlagsEditor : Editor
+    {
+        public override void OnInspectorGUI()
+        {
+            DrawDefaultInspector();
+
+            SetHideFlags combineMeshesScript = (SetHideFlags)target;
+            if (GUILayout.Button("Click Me to Refresh USD Asset"))
+            {
+                combineMeshesScript.RefreshUSD();
+            }
+        }
+    }
+}
+