XRPass.GetViewport() Exceptions in Editor

Unity Engine
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1

Hello, I played around with the VR Core Template in Unity 2022.3.23 + .24. After a short time, like going three times into playmode and clicking on things in the Editor, the console log is spamming with Exceptions.

Turns out, in XRPass.GetViewPort, that m_Views.Count is zero.

Anybody else seeing this ? I already filed a bug report.

The exception:

ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.Collections.Generic.List1[T].get_Item (System.Int32 index) (at <b11ba2a8fbf24f219f7cc98532a11304>:0) UnityEngine.Experimental.Rendering.XRPass.GetViewport (System.Int32 viewIndex) (at ./Library/PackageCache/com.unity.render-pipelines.core@14.0.10/Runtime/XR/XRPass.cs:195) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.ExecutePass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.Internal.DrawObjectsPass+PassData data, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean yFlip) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/Passes/DrawObjectsPass.cs:186) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/Passes/DrawObjectsPass.cs:156) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteRenderPass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.ScriptableRenderPass renderPass, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/ScriptableRenderer.cs:1507) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteBlock (System.Int32 blockIndex, UnityEngine.Rendering.Universal.ScriptableRenderer+RenderBlocks& renderBlocks, UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean submit) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/ScriptableRenderer.cs:1463) UnityEngine.Rendering.Universal.ScriptableRenderer.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/ScriptableRenderer.cs:1223) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCamera (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.CameraData& cameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:664) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera, UnityEngine.Rendering.Universal.UniversalAdditionalCameraData& additionalCameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:549) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:532) UnityEngine.Rendering.Universal.UniversalRenderPipeline.Render (UnityEngine.Rendering.ScriptableRenderContext renderContext, System.Collections.Generic.List1[T] cameras) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:384)
UnityEngine.Rendering.RenderPipeline.InternalRender (UnityEngine.Rendering.ScriptableRenderContext context, System.Collections.Generic.List`1[T] cameras) (at :0)
UnityEngine.Rendering.RenderPipelineManager.DoRenderLoop_Internal (UnityEngine.Rendering.RenderPipelineAsset pipe, System.IntPtr loopPtr, UnityEngine.Object renderRequest, Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle safety) (at :0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

3 Likes
2

Just looking through the error log, seems like XR is not initialized and XRView is not properly populated.
Could you share the bug report number?

Thanks,
Thomas

3

I got the same error. When I click an object that has renderer in play mode, error shows up.

Exception:

ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.Collections.Generic.List1[T].get_Item (System.Int32 index) (at <b11ba2a8fbf24f219f7cc98532a11304>:0) UnityEngine.Experimental.Rendering.XRPass.GetViewport (System.Int32 viewIndex) (at ./Library/PackageCache/com.unity.render-pipelines.core@14.0.10/Runtime/XR/XRPass.cs:195) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.ExecutePass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.Internal.DrawObjectsPass+PassData data, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean yFlip) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/Passes/DrawObjectsPass.cs:186) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/Passes/DrawObjectsPass.cs:156) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteRenderPass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.ScriptableRenderPass renderPass, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/ScriptableRenderer.cs:1507) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteBlock (System.Int32 blockIndex, UnityEngine.Rendering.Universal.ScriptableRenderer+RenderBlocks& renderBlocks, UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean submit) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/ScriptableRenderer.cs:1463) UnityEngine.Rendering.Universal.ScriptableRenderer.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/ScriptableRenderer.cs:1223) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCamera (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.CameraData& cameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:664) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera, UnityEngine.Rendering.Universal.UniversalAdditionalCameraData& additionalCameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:549) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:532) UnityEngine.Rendering.Universal.UniversalRenderPipeline.Render (UnityEngine.Rendering.ScriptableRenderContext renderContext, System.Collections.Generic.List1[T] cameras) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.10/Runtime/UniversalRenderPipeline.cs:384)
UnityEngine.Rendering.RenderPipeline.InternalRender (UnityEngine.Rendering.ScriptableRenderContext context, System.Collections.Generic.List`1[T] cameras) (at :0)
UnityEngine.Rendering.RenderPipelineManager.DoRenderLoop_Internal (UnityEngine.Rendering.RenderPipelineAsset pipe, System.IntPtr loopPtr, UnityEngine.Object renderRequest, Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle safety) (at :0)
UnityEngine.GUIUtility:processEvent(Int32, IntPtr, Boolean&)

1 Like
4

The bug report is case IN-73502.

Maybe it is somehow related to rendering of material previews in the Inspector.

1 Like
5

With 2022.3.26 the log spamming has become unrelated to the Inspector, it’s constant in Playmode. Using OpenXR and Valve Index.

Each Exception is now accompanied by a warning:

Render Pipeline error : the XR layout still contains active passes. Executing XRSystem.EndLayout() right now.
UnityEngine.GUIUtility:processEvent (int,intptr,bool&)

6

Yes, same here. Same version of Unity, same bug.

7

I found the following workaround, by changing a line in the URP package:

  1. Move the folder “com.unity.render-pipelines.universal@14.0.10” from the folder Library\PackageCache to the folder Packages instead, so it can be modified.

  2. Add an “xr.enabled” check in the method ExecutePass in the file DrawObjectsPass.cs, to read in line 184-187:

if (data.m_RenderingData.cameraData.xrRendering && data.m_RenderingData.cameraData.xr.enabled && data.m_IsActiveTargetBackBuffer)
{
cmd.SetViewport(data.m_RenderingData.cameraData.xr.GetViewport());
}
11 Likes
8

Thank you all for reporting and digging this.
Sorry this issue fall through the automation.
We verified the issue and will get this fixed asap.

Thanks,
Thomas

7 Likes
9

I had the same issue on 2022.3.26f and above fix ( xr.enabled ) seems to fix it.

1 Like
10

The above workaround solves issues with the “Mirrors for VR” and “Portals for VR” assets. Much appreciated! Hoping a permanent fix lands soon

1 Like
11

I have the exact same problem. For me it happens whenever I inspect/open the XR Origin (XR Rig) and select the Main Camera object during playmode, but if I deselect the Main Camera the error message stops. Here’s how I get the error:

  • During Play mode, open the XR Origin (XR Rig) object in your scene
  • Open the Camera Offset object
  • Select the Main Camera Object
  • the error message should appear in the Console

The exception:

ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.Collections.Generic.List1[T].get_Item (System.Int32 index) (at <b11ba2a8fbf24f219f7cc98532a11304>:0) UnityEngine.Experimental.Rendering.XRPass.GetViewport (System.Int32 viewIndex) (at ./Library/PackageCache/com.unity.render-pipelines.core@14.0.11/Runtime/XR/XRPass.cs:195) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.ExecutePass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.Internal.DrawObjectsPass+PassData data, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean yFlip) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/Passes/DrawObjectsPass.cs:186) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/Passes/DrawObjectsPass.cs:156) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteRenderPass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.ScriptableRenderPass renderPass, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/ScriptableRenderer.cs:1507) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteBlock (System.Int32 blockIndex, UnityEngine.Rendering.Universal.ScriptableRenderer+RenderBlocks& renderBlocks, UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean submit) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/ScriptableRenderer.cs:1463) UnityEngine.Rendering.Universal.ScriptableRenderer.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/ScriptableRenderer.cs:1223) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCamera (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.CameraData& cameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:664) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera, UnityEngine.Rendering.Universal.UniversalAdditionalCameraData& additionalCameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:549) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:532) UnityEngine.Rendering.Universal.UniversalRenderPipeline.Render (UnityEngine.Rendering.ScriptableRenderContext renderContext, System.Collections.Generic.List1[T] cameras) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:384)
UnityEngine.Rendering.RenderPipeline.InternalRender (UnityEngine.Rendering.ScriptableRenderContext context, System.Collections.Generic.List`1[T] cameras) (at <55fbbbd17b724c15b6abe8c1a3e3289c>:0)
UnityEngine.Rendering.RenderPipelineManager.DoRenderLoop_Internal (UnityEngine.Rendering.RenderPipelineAsset pipe, System.IntPtr loopPtr, UnityEngine.Object renderRequest, Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle safety) (at <55fbbbd17b724c15b6abe8c1a3e3289c>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

12

To clarify for anyone else coming here:

  • I didn’t notice any console errors

  • in a Quest2 build the Mirrors package (referred to by Tom above) was going nuts and eventually soft-locking

  • I followed the instructions, moved URP from Library to Packages as explained above, and edited that code

  • I also had to delete the com.unity.render-pipelines.universal@14.0.11/Tests folder - tests were failing to compile and this prevents builds.

  • this seems to have fixed the issue

I’m on Unity 2022.3.30 and URP 14.0.11. Thanks - ian

2 Likes
13

Noticing the same bug while working on a prototype XR scene (Unity 2022.3.29f1):

  • Set up my XR Rig and scene
  • Place a Particle System vfx from this free asset pack
  • Play the particle

In Scene View the effect is visible, in Game View it isn’t, and hovering onto the ParticleSystem inspector throws these logs:

ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.Collections.Generic.List1[T].get_Item (System.Int32 index) (at <467a840a914a47078e4ae9b0b1e8779e>:0) UnityEngine.Experimental.Rendering.XRPass.GetViewport (System.Int32 viewIndex) (at ./Library/PackageCache/com.unity.render-pipelines.core@14.0.11/Runtime/XR/XRPass.cs:195) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.ExecutePass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.Internal.DrawObjectsPass+PassData data, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean yFlip) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/Passes/DrawObjectsPass.cs:186) UnityEngine.Rendering.Universal.Internal.DrawObjectsPass.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/Passes/DrawObjectsPass.cs:156) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteRenderPass (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.ScriptableRenderPass renderPass, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/ScriptableRenderer.cs:1507) UnityEngine.Rendering.Universal.ScriptableRenderer.ExecuteBlock (System.Int32 blockIndex, UnityEngine.Rendering.Universal.ScriptableRenderer+RenderBlocks& renderBlocks, UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData, System.Boolean submit) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/ScriptableRenderer.cs:1463) UnityEngine.Rendering.Universal.ScriptableRenderer.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/ScriptableRenderer.cs:1223) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCamera (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.CameraData& cameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:664) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera, UnityEngine.Rendering.Universal.UniversalAdditionalCameraData& additionalCameraData) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:549) UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCameraInternal (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:532) UnityEngine.Rendering.Universal.UniversalRenderPipeline.Render (UnityEngine.Rendering.ScriptableRenderContext renderContext, System.Collections.Generic.List1[T] cameras) (at ./Library/PackageCache/com.unity.render-pipelines.universal@14.0.11/Runtime/UniversalRenderPipeline.cs:384)
UnityEngine.Rendering.RenderPipeline.InternalRender (UnityEngine.Rendering.ScriptableRenderContext context, System.Collections.Generic.List`1[T] cameras) (at <55fbbbd17b724c15b6abe8c1a3e3289c>:0)
UnityEngine.Rendering.RenderPipelineManager.DoRenderLoop_Internal (UnityEngine.Rendering.RenderPipelineAsset pipe, System.IntPtr loopPtr, UnityEngine.Object renderRequest, Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle safety) (at <55fbbbd17b724c15b6abe8c1a3e3289c>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

1 Like
14

Hi there, quick question. When trying to change the code in DrawObjectPass, the code is automatically changed back and I receive the following error:
The package cache was invalidated and rebuilt because the following immutable asset(s) were unexpectedly altered:
Packages/com.unity.render-pipelines.universal/Runtime/Passes/DrawObjectsPass.cs

Any ideas on how to fix this?

15

Step 1 is important:
Move the folder “com.unity.render-pipelines.universal@14.0.10” from the folder Library\PackageCache to the folder Packages instead, so it can be modified.

2 Likes
16

Thanks for the response! I realised I had moved a file with a different name, oops! I dont seem to have a file with exact that name, could it be one of these?

com.unity.render-pipelines.core@14.0.11
com.unity.render-pipelines.universal@14.0.11
com.unity.render-pipelines.universal-config@14.0.10

EDIT:

I copied over the com.unity.render-pipelines.universal@14.0.11 and that seemed to do the trick! Thank you :slight_smile:

2 Likes
17

I also have the same problem here. And it seems that the code-changing workaround of DrawObjectsPass.cs doesn’t work for the particle effects. There will be no messages in Console but the particles don’t appear in the game view.

1 Like
18

Okay, I turned the render mode of OpenXR from Single Pass to Multipass just now. It works

1 Like
19

Support told me that they now track the bug under the following (aparently duplicate) report:

Consider to vote on the bug …

4 Likes
20

I get this same error, but on a build on the Meta Quest 2. Non-development, non editor. Any ideas?