Merge pull request #18 from patrickp-unity3d/master

Check for NAN when applying position from readback

Runtime/SkinAttachmentTarget.cs

@@ -244,6 +244,8 @@ namespace Unity.DemoTeam.DigitalHuman
 						if (subjects[i].attachmentType != SkinAttachment.AttachmentType.Transform) continue;
 						int index = subjects[i].TransformAttachmentGPUBufferIndex;
 						Vector3 pos = readBackBuffer[index];
+						if (float.IsNaN(pos.x) || float.IsNaN(pos.y) || float.IsNaN(pos.z) || float.IsInfinity(pos.x) || float.IsInfinity(pos.y) ||
+							float.IsInfinity(pos.z)) continue;
 						subjects[i].transform.position = pos;
 					}
 	
@@ -1445,4 +1447,4 @@ namespace Unity.DemoTeam.DigitalHuman
         }
 #endif
     }
-}
+}