Bug Urp settings errors

2022.2.0a17

urp 14.0.3

CASE IN-7907

errors occurred if Opaque Texture enabled in pipeline settings:




ArgumentNullException: Value cannot be null.
Parameter name: value
UnityEngine.MaterialPropertyBlock.SetTexture (System.Int32 nameID, UnityEngine.Texture value) (at <9d8790cb07b5448489717b720a1ca024>:0)
UnityEngine.Rendering.Blitter.BlitTexture (UnityEngine.Rendering.CommandBuffer cmd, UnityEngine.Rendering.RTHandle source, UnityEngine.Vector4 scaleBias, UnityEngine.Material material, System.Int32 pass) (at Library/PackageCache/com.unity.render-pipelines.core@14.0.3/Runtime/Utilities/Blitter.cs:238)
UnityEngine.Rendering.Blitter.BlitCameraTexture (UnityEngine.Rendering.CommandBuffer cmd, UnityEngine.Rendering.RTHandle source, UnityEngine.Rendering.RTHandle destination, UnityEngine.Rendering.RenderBufferLoadAction loadAction, UnityEngine.Rendering.RenderBufferStoreAction storeAction, UnityEngine.Material material, System.Int32 pass) (at Library/PackageCache/com.unity.render-pipelines.core@14.0.3/Runtime/Utilities/Blitter.cs:361)
UnityEngine.Rendering.Universal.Internal.CopyColorPass.ExecutePass (UnityEngine.Rendering.Universal.Internal.CopyColorPass+PassData passData, UnityEngine.Rendering.RTHandle source, UnityEngine.Rendering.RTHandle destination, UnityEngine.Rendering.CommandBuffer& cmd, System.Boolean useDrawProceduralBlit) (at Library/PackageCache/com.unity.render-pipelines.universal@14.0.3/Runtime/Passes/CopyColorPass.cs:179)
UnityEngine.Rendering.Universal.Internal.CopyColorPass.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at Library/PackageCache/com.unity.render-pipelines.universal@14.0.3/Runtime/Passes/CopyColorPass.cs:149)
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@14.0.3/Runtime/ScriptableRenderer.cs:1405)
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@14.0.3/Runtime/ScriptableRenderer.cs:1370)
UnityEngine.Rendering.Universal.ScriptableRenderer.Execute (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.RenderingData& renderingData) (at Library/PackageCache/com.unity.render-pipelines.universal@14.0.3/Runtime/ScriptableRenderer.cs:1153)
UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCamera (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Rendering.Universal.CameraData& cameraData, System.Boolean anyPostProcessingEnabled) (at Library/PackageCache/com.unity.render-pipelines.universal@14.0.3/Runtime/UniversalRenderPipeline.cs:472)
UnityEngine.Rendering.Universal.UniversalRenderPipeline.RenderSingleCamera (UnityEngine.Rendering.ScriptableRenderContext context, UnityEngine.Camera camera) (at Library/PackageCache/com.unity.render-pipelines.universal@14.0.3/Runtime/UniversalRenderPipeline.cs:372)
UnityEngine.Rendering.Universal.UniversalRenderPipeline.Render (UnityEngine.Rendering.ScriptableRenderContext renderContext, System.Collections.Generic.List`1[T] cameras) (at Library/PackageCache/com.unity.render-pipelines.universal@14.0.3/Runtime/UniversalRenderPipeline.cs:320)
UnityEngine.Rendering.RenderPipeline.InternalRender (UnityEngine.Rendering.ScriptableRenderContext context, System.Collections.Generic.List`1[T] cameras) (at <9d8790cb07b5448489717b720a1ca024>:0)
UnityEngine.Rendering.RenderPipelineManager.DoRenderLoop_Internal (UnityEngine.Rendering.RenderPipelineAsset pipe, System.IntPtr loopPtr, System.Collections.Generic.List`1[T] renderRequests, Unity.Collections.LowLevel.Unsafe.AtomicSafetyHandle safety) (at <9d8790cb07b5448489717b720a1ca024>:0)
UnityEngine.GUIUtility: ProcessEvent(Int32, IntPtr, Boolean&)

I created materials with shadergraph.
Materials previewing has errors in Inspector (If I disabled OpaqueTexture in pipeline settings, nothing goes wrong):



I notice that theres the same errors if my cursor hovering over some labels in Inspector:



btw my Materials is fine in the scene.

 

i also have a report for this problem still found in the latest a18
case number IN-9379

 

Thanks for this tip - the same error (Blitter.cs line 238) has been spamming my console in 2022.2 and 2023.1 along with flickering in the Scene window, transparent things seemingly drawing over themselves random numbers of times and other weirdness - even in brand new projects with nothing but simple assets imported.

However, with Opaque texture disabled, I can select objects in the scene that have transparent materials without getting the errors ("Assertion Failed" in GUIUtilityrocessEvent and the Blitter.cs one).

I'm doing this now to enable it for Play Mode/builds and disable it for Edit Mode.. added to a GameObject in the Hierarchy:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Rendering;
3. using UnityEngine.Rendering.Universal;
4. [ExecuteAlways]
5. public class URPOpaqueTextureToggler : MonoBehaviour
6. {
7.   private void Start()
8.   {
9.     UniversalRenderPipelineAsset urp = (UniversalRenderPipelineAsset)GraphicsSettings.currentRenderPipeline;
10.     urp.supportsCameraOpaqueTexture = Application.isPlaying;
11.     // Debug.Log(urp.name + " Opaque Texture " + (urp.supportsCameraOpaqueTexture ? "Enabled" : "Disabled"));
12.   }
13. }

 

Also having this issue on 2022.2.0b3

 

Having this issue in 2022.2.10f, coming this call in a render pass:

Code (CSharp):

1. Blitter.BlitCameraTexture(cmd, _cameraColorTarget, _cameraColorTarget, _material, 0);

I've checked and no arguments being passed are null.

 

We do not have opaque texture enabled.

 

Hi. Did you manage to solve the problem?

 

Yes, for context our issue is that we're using BlitCameraTexture with a material that has no source input, so the confusion arose from what to pass to the "source" argument. If we were to pass null there would also be an error, so we can't do that. We were passing in the same handle for both source and dest, which was fine on older versions of URP. So our tech artist's solution was to create a dummy texture that we can use instead:

Code (CSharp):

1.     public override void Create() {
2.       _renderPass = new OutlinePass();
3.       _dummyHandle = RTHandles.Alloc(1, 1);
4.     }
5.  
6. // ...
7.  
8.       _renderPass.Setup(renderer.cameraColorTargetHandle, _dummyHandle, _material, PassSettings.RenderPassEvent);
9.  
10. // ...
11.  
12.       public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData) {
13.         if (_material == null || _cameraColorTarget == null) {
14.           return;
15.         }
16.  
17.         CommandBuffer cmd = CommandBufferPool.Get();
18.         using (new ProfilingScope(cmd, m_ProfilingSampler)) {
19.           // TODO: ideally, blit with source texture null. (This causes an error.)
20.           // Instead, use a dummy RTHandle.
21.           Blitter.BlitCameraTexture(cmd, _dummySourceHandle, _cameraColorTarget, _material, 0);
22.         }
23.         context.ExecuteCommandBuffer(cmd);