Intermittent render failure with URP's Render Graph

ryan toole

2 months ago
updated 1 month ago

Having an interesting issue in 6000, where my ImmediateModeShapeDrawers produce an error with rendering in Edit Mode after several have been added to the scene (everything is fine in Play Mode!).

Some background

My setup includes several independent instances of ImmediateModeShapeDrawers set to "[ExecuteAlways]", but with the following general pattern:

The objects get rendered by a singleton instance of ImmediateModeShapeDrawer which stores a reference to all individual instances on those scripts' OnEnable():

I've tested in a fresh scene, and I am able to add up to 16 individual drawers:

After adding just 1 more, rendering fails with the following errors:

Render Graph Execution error
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Exception: Invalid version: 20
UnityEngine.Rendering.RenderGraphModule.NativeRenderPassCompiler.ResourcesData.get_Item (UnityEngine.Rendering.RenderGraphModule.ResourceHandle h) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/Compiler/ResourcesData.cs:325)
UnityEngine.Rendering.RenderGraphModule.NativeRenderPassCompiler.NativePassCompiler.BuildGraph () (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/Compiler/NativePassCompiler.cs:261)
UnityEngine.Rendering.RenderGraphModule.NativeRenderPassCompiler.NativePassCompiler.Compile (UnityEngine.Rendering.RenderGraphModule.RenderGraphResourceRegistry resources) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/Compiler/NativePassCompiler.cs:84)
UnityEngine.Rendering.RenderGraphModule.RenderGraph.CompileNativeRenderGraph (System.Int32 graphHash) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraph.Compiler.cs:20)
UnityEngine.Rendering.RenderGraphModule.RenderGraph.Execute () (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraph.cs:1221)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

InvalidOperationException: Trying to use a texture (_InternalGradingLut) that was already released or not yet created. Make sure you declare it for reading in your pass or you don't read it before it's been written to at least once.
UnityEngine.Rendering.RenderGraphModule.RenderGraphResourceRegistry.CheckTextureResource (UnityEngine.Rendering.RenderGraphModule.TextureResource texResource) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraphResourceRegistry.cs:177)
UnityEngine.Rendering.RenderGraphModule.RenderGraphResourceRegistry.GetTexture (UnityEngine.Rendering.RenderGraphModule.TextureHandle& handle) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraphResourceRegistry.cs:185)
UnityEngine.Rendering.RenderGraphModule.TextureHandle.op_Implicit (UnityEngine.Rendering.RenderGraphModule.TextureHandle texture) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraphResourceTexture.cs:102)
UnityEngine.Rendering.Universal.Internal.ColorGradingLutPass+<>c.b__14_0 (UnityEngine.Rendering.Universal.Internal.ColorGradingLutPass+PassData data, UnityEngine.Rendering.RenderGraphModule.RasterGraphContext context) (at ./Library/PackageCache/com.unity.render-pipelines.universal/Runtime/Passes/ColorGradingLutPass.cs:302)
UnityEngine.Rendering.RenderGraphModule.RasterRenderGraphPass`1[PassData].Execute (UnityEngine.Rendering.RenderGraphModule.InternalRenderGraphContext renderGraphContext) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraphPass.cs:599)
UnityEngine.Rendering.RenderGraphModule.NativeRenderPassCompiler.NativePassCompiler.ExecuteGraphNode (UnityEngine.Rendering.RenderGraphModule.InternalRenderGraphContext& rgContext, UnityEngine.Rendering.RenderGraphModule.RenderGraphResourceRegistry resources, UnityEngine.Rendering.RenderGraphModule.RenderGraphPass pass) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/Compiler/NativePassCompiler.cs:1326)
UnityEngine.Rendering.RenderGraphModule.NativeRenderPassCompiler.NativePassCompiler.ExecuteGraph (UnityEngine.Rendering.RenderGraphModule.InternalRenderGraphContext rgContext, UnityEngine.Rendering.RenderGraphModule.RenderGraphResourceRegistry resources, System.Collections.Generic.List`1[UnityEngine.Rendering.RenderGraphModule.RenderGraphPass]& passes) (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/Compiler/NativePassCompiler.cs:1428)
UnityEngine.Rendering.RenderGraphModule.RenderGraph.ExecuteNativeRenderGraph () (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraph.Compiler.cs:42)
UnityEngine.Rendering.RenderGraphModule.RenderGraph.Execute () (at ./Library/PackageCache/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraph.cs:1233)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

Workaround

I am able to completely bypass the issue by simply enabling compatibility mode with Render Graph, and this is entirely sufficient for me right now - but wondering if something's amiss with my potentially wonky setup or there's a sneaky bug.

Thank you for this amazing tool and for any time spent investigating!

Reporting a bug? please specify Unity version:

6000.0.30f1

Reporting a bug? please specify Shapes version:

4.5.0

Reporting a bug? please specify Render Pipeline:

URP

Render Pipeline: URP

[Exception] NullReferenceException: Object reference not set to an instance of an object
RenderGraphResourceRegistry.GetRenderTargetInfo() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphResourceRegistry.cs:714

RenderGraphBuilders.CheckUseFragment() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:355

RenderGraphBuilders.SetRenderAttachment() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:390

IRasterRenderGraphBuilder.SetRenderAttachment() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/IRenderGraphBuilder.cs:196

ShapesRenderPass.RecordRenderGraph() at /Shapes/Scripts/Runtime/Immediate Mode/ShapesRenderPass.cs:40

ScriptableRenderer.RecordCustomRenderGraphPassesInEventRange() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/ScriptableRenderer.cs:1222

ScriptableRenderer.RecordCustomRenderGraphPasses() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/ScriptableRenderer.cs:1241

ScriptableRenderer.RecordCustomRenderGraphPasses() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/ScriptableRenderer.cs:1246

UniversalRenderer.OnAfterRendering() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRendererRenderGraph.cs:1433

UniversalRenderer.OnRecordRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRendererRenderGraph.cs:804

ScriptableRenderer.RecordRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/ScriptableRenderer.cs:1175

UniversalRenderPipeline.RecordRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipelineRenderGraph.cs:10

UniversalRenderPipeline.RecordAndExecuteRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipelineRenderGraph.cs:24

UniversalRenderPipeline.RenderSingleCamera() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:857

UniversalRenderPipeline.RenderSingleCameraInternal() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:690

UniversalRenderPipeline.RenderSingleCameraInternal() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:665

UniversalRenderPipeline.Render() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:482

RenderPipeline.InternalRender() at <8e5a634840fd4c6b9a0a867163b727ec>:0

RenderPipelineManager.DoRenderLoop_Internal() at <8e5a634840fd4c6b9a0a867163b727ec>:0

GUIUtility.ProcessEvent()

[Exception] InvalidOperationException: The CullingResults instance is no longer valid. This can happen if you re-use it across multiple frames. CullingResults.Validate() at <8e5a634840fd4c6b9a0a867163b727ec>:0

RenderGraphResourceRegistry.CreateRendererLists() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphResourceRegistry.cs:1204 RenderGraph.CompileNativeRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraph.Compiler.cs:32

[Exception] ArgumentException: Trying to use an invalid resource (pass DrawOpaqueObjects). RenderGraphBuilders.CheckResource() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:512

RenderGraphBuilders.UseResource() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:199 RenderGraphBuilders.UseTexture() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:291

RenderGraphBuilders.Dispose() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:131 RenderGraphBuilders.Dispose() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraphBuilders.cs:112

DrawObjectsPass.Render() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/Passes/DrawObjectsPass.cs:324 UniversalRenderer.OnMainRendering() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRendererRenderGraph.cs:1311

UniversalRenderer.OnRecordRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRendererRenderGraph.cs:802 ScriptableRenderer.RecordRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/ScriptableRenderer.cs:1175

UniversalRenderPipeline.RecordRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipelineRenderGraph.cs:10 UniversalRenderPipeline.RecordAndExecuteRenderGraph() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipelineRenderGraph.cs:24

UniversalRenderPipeline.RenderSingleCamera() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:857 UniversalRenderPipeline.RenderSingleCameraInternal() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:690

UniversalRenderPipeline.RenderSingleCameraInternal() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:665 UniversalRenderPipeline.Render() at ./Library/PackageCache/com.unity.render-pipelines.universal@0b68ece7aa54/Runtime/UniversalRenderPipeline.cs:482

Replies 3

Oldest first
Newest first Oldest first

Justin Wasilenko

1 month ago

Just wanted to chime in here that I am experiencing a similar issue. I only use Shapes with Immediate-Mode Drawing. However if Compatibility Mode is disabled Shapes causes a whole bunch of errors and will then crash Unity after play mode is stopped.

In order to cause this problem all you need is a simple script to call ImmediateModelike this and the errors will appear.

public class ShapesRenderer : ImmediateModeShapeDrawer
{
  public override void DrawShapes(Camera cam)
  {
    using (Draw.Command(cam))
    {}
  }
}

Unity version: 6000.0.39f1
Shapes version: 4.5.0

Reply Link

RendererListParams.Validate() at <8e5a634840fd4c6b9a0a867163b727ec>:0
ScriptableRenderContext.CreateRendererList() at <8e5a634840fd4c6b9a0a867163b727ec>:0

RenderGraph.Execute() at ./Library/PackageCache/com.unity.render-pipelines.core@38fdc9b96878/Runtime/RenderGraph/RenderGraph.cs:1221
GUIUtility.ProcessEvent()

RenderPipeline.InternalRender() at <8e5a634840fd4c6b9a0a867163b727ec>:0
RenderPipelineManager.DoRenderLoop_Internal() at <8e5a634840fd4c6b9a0a867163b727ec>:0

GUIUtility.ProcessEvent()