AlembicPointsRenderer: fallback

Unity-Technologies · Apr 6, 2017 · 6941806 · 6941806
1 parent bee2e82
commit 6941806
Showing 1 changed file with 14 additions and 1 deletion.
diff --git a/AlembicImporter/Assets/UTJ/AlembicImporter/Scripts/AlembicPointsRenderer.cs b/AlembicImporter/Assets/UTJ/AlembicImporter/Scripts/AlembicPointsRenderer.cs
@@ -86,8 +86,14 @@ public void Flush()
             if(num_instances == 0) { return; }
             int num_submeshes = System.Math.Min(m_mesh.subMeshCount, m_materials.Length);
 
-#if UNITY_5_5_OR_NEWER
             bool supportsInstancing = SystemInfo.supportsInstancing;
+            if (!supportsInstancing && m_instancingMode != InstancingMode.NoInstancing)
+            {
+                Debug.LogWarning("AlembicPointsRenderer: Instancing is not supported on this system. fallback to InstancingMode.NoInstancing.");
+                m_instancingMode = InstancingMode.Instancing;
+            }
+
+#if UNITY_5_5_OR_NEWER
             int pidPointSize = Shader.PropertyToID("_PointSize");
             int pidAlembicPoints = Shader.PropertyToID("_AlembicPoints");
             int pidAlembicIDs = Shader.PropertyToID("_AlembicIDs");
@@ -96,6 +102,13 @@ public void Flush()
 #if UNITY_5_6_OR_NEWER
             if (supportsInstancing && m_instancingMode == InstancingMode.Procedural)
             {
+                if(!SystemInfo.supportsComputeShaders)
+                {
+                    Debug.LogWarning("AlembicPointsRenderer: InstancingMode.Procedural is not supported on this system. fallback to InstancingMode.Instancing.");
+                    m_instancingMode = InstancingMode.Instancing;
+                    return;
+                }
+
                 // Graphics.DrawMeshInstancedIndirect() route
 
                 // update argument buffer