PolySpatial 2.1.2 causes Unity to crash when loading AssetBundle resources

[yong1yong2]

When using the VisionOS platform in the Unity Editor, loading assets through AssetBundle causes Unity to crash. The crash log contains the following information:

========== OUTPUTTING STACK TRACE ==================

0x00007FFCDDE1F3B0 (Unity) CopyChannelDirect
0x00007FFCDDE1D3F7 (Unity) VertexUtility::CopyChannel
0x00007FFCDDE1F79B (Unity) CopyChannels
0x00007FFCDDE1F8E9 (Unity) VertexUtility::CopyChannels
0x00007FFCDDE1CFD2 (Unity) MeshDataBindings::CopyAttributeIntoPtr
0x00007FFCDD4C7EC2 (Unity) Mesh_MeshData_CUSTOM_CopyAttributeIntoPtr
0x000001F07705853A (Mono JIT Code) (wrapper managed-to-native) UnityEngine.Mesh/MeshData:CopyAttributeIntoPtr (intptr,UnityEngine.Rendering.VertexAttribute,UnityEngine.Rendering.VertexAttributeFormat,int,intptr)
0x000001F07705829B (Mono JIT Code) UnityEngine.Mesh/MeshData:CopyAttributeInto<UnityEngine.Vector3> (Unity.Collections.NativeArray`1<UnityEngine.Vector3>,UnityEngine.Rendering.VertexAttribute,UnityEngine.Rendering.VertexAttributeFormat,int)
0x000001F077057FB3 (Mono JIT Code) UnityEngine.Mesh/MeshData:GetVertices (Unity.Collections.NativeArray`1<UnityEngine.Vector3>)
0x000001F077050AA3 (Mono JIT Code) [/Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/Rendering/MeshConversionHelpers.cs:81] Unity.PolySpatial.Internals.MeshConversionHelpers:ConvertMeshAssetToPolySpatialMesh (Unity.PolySpatial.Internals.AssetRepresentation,System.Action`2<Unity.PolySpatial.Internals.AssetRepresentation, Unity.PolySpatial.Internals.PolySpatialMesh>) 
0x000001F07704B0FB (Mono JIT Code) [/Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/AssetManagement/LocalAssetManager.cs:1211] Unity.PolySpatial.Internals.LocalAssetManager:ProcessChangedAsset (Unity.PolySpatial.Internals.AssetRepresentation) 
0x000001F07704894B (Mono JIT Code) [/Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/AssetManagement/LocalAssetManager.cs:823] Unity.PolySpatial.Internals.LocalAssetManager:ProcessChanges () 
0x000001F076FE1423 (Mono JIT Code) [/Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/Trackers/PolySpatialUnitySimulation.cs:276] Unity.PolySpatial.Internals.PolySpatialUnitySimulation:UpdateInternal () 
0x000001F076FB7DAB (Mono JIT Code) [/Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/Trackers/PolySpatialUnitySimulation.cs:211] Unity.PolySpatial.Internals.PolySpatialUnitySimulation:Update () 
0x000001F076F8F4D3 (Mono JIT Code) [/Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/PolySpatialCore.cs:710] Unity.PolySpatial.Internals.PolySpatialCore:PolySpatialAfterLateUpdate () 
0x000001F18D005648 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x00007FFCD49869CE (mono-2.0-bdwgc) [C:\build\output\Unity-Technologies\mono\mono\mini\mini-runtime.c:3445] mono_jit_runtime_invoke 
0x00007FFCD48C8474 (mono-2.0-bdwgc) [C:\build\output\Unity-Technologies\mono\mono\metadata\object.c:3068] do_runtime_invoke 
0x00007FFCD48C8560 (mono-2.0-bdwgc) [C:\build\output\Unity-Technologies\mono\mono\metadata\object.c:3115] mono_runtime_invoke 
0x00007FFCDE2AB404 (Unity) scripting_method_invoke
0x00007FFCDE283193 (Unity) ScriptingInvocation::Invoke
0x00007FFCDDEF81C6 (Unity) ExecutePlayerLoop
0x00007FFCDDEFD31F (Unity) PlayerLoop
0x00007FFCDEFFF34A (Unity) EditorPlayerLoop::Execute
0x00007FFCDF015D47 (Unity) PlayerLoopController::InternalUpdateScene
0x00007FFCDF017AFD (Unity) PlayerLoopController::UpdateSceneIfNeededFromMainLoop
0x00007FFCDF0118B1 (Unity) Application::TickTimer
0x00007FFCDF6063FA (Unity) MainMessageLoop
0x00007FFCDF60C0C4 (Unity) UnityMain
0x00007FF6B76F2FBA (Unity) __scrt_common_main_seh
0x00007FFD4B057374 (KERNEL32) BaseThreadInitThunk
0x00007FFD4B1FCC91 (ntdll) RtlUserThreadStart

========== END OF STACKTRACE ===========

A crash has been intercepted by the crash handler. For call stack and other details, see the latest crash report generated in:
 * C:/Users/hp/AppData/Local/Temp/Unity/Editor/Crashes

[yong1yong2]

Sometimes, loading AssetBundles also triggers the following error in the console, but it doesn’t cause a crash. This issue occurs on both Windows 10 and macBook.

[Diagnostics] EXCEPTION NullReferenceException in PolySpatialCore:
  at Unity.Collections.NativeArray`1[T]..ctor (Unity.Collections.NativeArray`1[T] array, Unity.Collections.Allocator allocator) [0x00001] in /Users/bokken/build/output/unity/unity/Runtime/Export/NativeArray/NativeArray.cs:88 
  at Unity.PolySpatial.Internals.ConversionHelpers.GetRawTextureData (UnityEngine.Texture2D tex2d, Unity.Collections.Allocator allocator, UnityEngine.Experimental.Rendering.GraphicsFormat& graphicsFormat) [0x000b0] in /Users/bokken/build/output/unity/polyspatial/Packages/com.unity.polyspatial/Runtime/Platforms/PolySpatialConversionHelpers.cs:838

[Oyvind_F]

Please report this as a bug from within the Editor by selecting “Help → Report a Bug…” and attach a reproduction project and log files. Our Customer QA team will then investigate the issue further.

[kapolka]

@yong1yong2

Sometimes, loading AssetBundles also triggers the following error in the console, but it doesn’t cause a crash. This issue occurs on both Windows 10 and macBook.

You might want to try marking the meshes and textures that you’re adding to the AssetBundle as readable (Advanced → Read/Write for the texture importer settings, Meshes → Read/Write for the model importer), if you haven’t already done so. The underlying issue here is that PolySpatial can’t access the contents of the textures/meshes in order to transfer them to RealityKit. If that doesn’t work, as @Oyvind_F says, please submit a bug report with a repro case so that we can look into it further. If you mention the incident number (IN-#####) in this thread, I can look into it more quickly.

[yong1yong2]

By enabling the Read/Write property on the Mesh, I have resolved the crash issue. However, there is still a texture named “Background” that is not set to Read/Write, causing the AssetBundle to fail to load. This texture appears to be a built-in Unity texture, such as the one referenced in the Slider component, and I cannot modify its Read/Write property.

I believe I could resolve this issue by removing its reference from the Image component, but currently, I am unable to locate the component where this texture is being used.

Do you have any suggestions for a better solution?
@kapolka @Oyvind_F
The following is the error message reported on Vision Pro:

UnityException: Texture 'Background' is not readable, the texture memory can not be accessed from scripts. You can make the texture readable in the Texture Import Settings.
  at UnityEngine.Texture2D.GetRawTextureData[T] () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.XR.ARFoundation.MutableRuntimeReferenceImageLibraryExtensions.ScheduleAddImageWithValidationJob (UnityEngine.XR.ARSubsystems.MutableRuntimeReferenceImageLibrary library, UnityEngine.Texture2D texture, System.String name, System.Nullable`1[T] widthInMeters, Unity.Jobs.JobHandle inputDeps) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.ConversionHelpers.GetRawTextureData (UnityEngine.Texture2D tex2d, Unity.Collections.Allocator allocator, UnityEngine.Experimental.Rendering.GraphicsFormat& graphicsFormat) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.SendTextureAssetChanged (Unity.PolySpatial.Internals.PolySpatialAssetID assetID, UnityEngine.Object unityTexture, System.Boolean computeDataHash, System.Boolean allowNativeTextures) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.ProcessChangedAsset (Unity.PolySpatial.Internals.AssetRepresentation representation) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.ProcessChanges () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialUnitySimulation.UpdateInternal () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialUnitySimulation.Update () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialCore.PolySpatialAfterLateUpdate () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.LowLevel.PlayerLoopSystem+UpdateFunction.Invoke () [0x00000] in <00000000000000000000000000000000>:0 

Execution of the command buffer was aborted due to an error during execution. Insufficient Permission (to submit GPU work from background) (00000006:kIOGPUCommandBufferCallbackErrorBackgroundExecutionNotPermitted)

[Diagnostics] EXCEPTION UnityException in PolySpatialCore:
  at UnityEngine.Texture2D.GetRawTextureData[T] () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.XR.ARFoundation.MutableRuntimeReferenceImageLibraryExtensions.ScheduleAddImageWithValidationJob (UnityEngine.XR.ARSubsystems.MutableRuntimeReferenceImageLibrary library, UnityEngine.Texture2D texture, System.String name, System.Nullable`1[T] widthInMeters, Unity.Jobs.JobHandle inputDeps) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.ConversionHelpers.GetRawTextureData (UnityEngine.Texture2D tex2d, Unity.Collections.Allocator allocator, UnityEngine.Experimental.Rendering.GraphicsFormat& graphicsFormat) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.SendTextureAssetChanged (Unity.PolySpatial.Internals.PolySpatialAssetID assetID, UnityEngine.Object unityTexture, System.Boolean computeDataHash, System.Boolean allowNativeTextures) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.ProcessChangedAsset (Unity.PolySpatial.Internals.AssetRepresentation representation) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.ProcessChanges () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialUnitySimulation.UpdateInternal () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialUnitySimulation.Update () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialCore.PolySpatialAfterLateUpdate () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.LowLevel.PlayerLoopSystem+UpdateFunction.Invoke () [0x00000] in <00000000000000000000000000000000>:0 
UnityException: Texture 'Background' is not readable, the texture memory can not be accessed from scripts. You can make the texture readable in the Texture Import Settings.
  at UnityEngine.Texture2D.GetRawTextureData[T] () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.XR.ARFoundation.MutableRuntimeReferenceImageLibraryExtensions.ScheduleAddImageWithValidationJob (UnityEngine.XR.ARSubsystems.MutableRuntimeReferenceImageLibrary library, UnityEngine.Texture2D texture, System.String name, System.Nullable`1[T] widthInMeters, Unity.Jobs.JobHandle inputDeps) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.ConversionHelpers.GetRawTextureData (UnityEngine.Texture2D tex2d, Unity.Collections.Allocator allocator, UnityEngine.Experimental.Rendering.GraphicsFormat& graphicsFormat) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.SendTextureAssetChanged (Unity.PolySpatial.Internals.PolySpatialAssetID assetID, UnityEngine.Object unityTexture, System.Boolean computeDataHash, System.Boolean allowNativeTextures) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.ProcessChangedAsset (Unity.PolySpatial.Internals.AssetRepresentation representation) [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.LocalAssetManager.ProcessChanges () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialUnitySimulation.UpdateInternal () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialUnitySimulation.Update () [0x00000] in <00000000000000000000000000000000>:0 
  at Unity.PolySpatial.Internals.PolySpatialCore.PolySpatialAfterLateUpdate () [0x00000] in <00000000000000000000000000000000>:0 
  at UnityEngine.LowLevel.PlayerLoopSystem+UpdateFunction.Invoke () [0x00000] in <00000000000000000000000000000000>:0 
UnityEngine.DebugLogHandler:Internal_LogException_Injected(Exception, IntPtr)
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Debug:LogErrorFormat(Object, String, Object[])
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogErrorFormat(Object, String, Object[])
UnityEngine.Debug:LogException(Exception)
Unity.PolySpatial.Internals.PolySpatialCore:PolySpatialAfterLateUpdate()
UnityEngine.LowLevel.UpdateFunction:Invoke()

[afjk01]

This might be helpful for you:

InvalidOperationException: Not allowed to access vertex data on mesh 'foo'

I encountered the same issue while loading asset bundles. In my experience, I resolved it by modifying the “platformRequiresReadableAssets” value in the “ProjectSettings.asset” of the project used to build the asset bundle. /ProjectSettings/ProjectSettings.asset platformRequiresReadableAssets: 1

[yong1yong2]

Thank you for the solution you provided; my issue has been resolved!