While reviewing [Link Removed] test case, I hit the following crash opening the TM-MeshPaint level. On first attempt shaders were compiling, on attemps after, editor crashes much faster.
Result: Crash occurs as level is opening
LoginId:664a3b6e473badab41ae90b4a8b67613 EpicAccountId:07730bcdd79045f3931f8c6be898df40 Assertion failed: SceneColor[(int32)CurrentSceneColorFormatType] [File:D:\Build\++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Renderer\Private\PostProcess/SceneRenderTargets.h] [Line: 725] UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349] UE4Editor_Renderer!FSceneRenderTargets::GetSceneColorForCurrentShadingPath<1>() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\postprocess\scenerendertargets.h:727] UE4Editor_Renderer!FSceneRenderTargets::GetSceneColorSurface() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\postprocess\scenerendertargets.cpp:2086] UE4Editor_Renderer!FSceneTextureShaderParameters::Set<FRHIHullShader * __ptr64,FRHICommandList>() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\postprocess\scenerendertargets.cpp:2411] UE4Editor_Renderer!FDeferredPixelShaderParameters::Set<FRHIHullShader * __ptr64,FRHICommandList>() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\postprocess\scenerendertargets.cpp:2583] UE4Editor_Renderer!FMaterialShader::SetParameters<FRHIHullShader * __ptr64>() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\shaderbaseclasses.cpp:324] UE4Editor_Renderer!FBaseHS::SetParameters() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\shaderbaseclasses.h:67] UE4Editor_Renderer!FDepthDrawingPolicy::SetSharedState() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\depthrendering.cpp:409] UE4Editor_Renderer!TStaticMeshDrawList<FDepthDrawingPolicy>::DrawElement<2>() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\staticmeshdrawlist.inl:132] UE4Editor_Renderer!TStaticMeshDrawList<FDepthDrawingPolicy>::DrawVisibleInner<2>() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\staticmeshdrawlist.inl:348] UE4Editor_Renderer!TStaticMeshDrawList<FDepthDrawingPolicy>::DrawVisible() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\staticmeshdrawlist.inl:400] UE4Editor_Renderer!FDeferredShadingSceneRenderer::RenderPrePassView() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\depthrendering.cpp:943] UE4Editor_Renderer!FDeferredShadingSceneRenderer::RenderPrePass() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\depthrendering.cpp:1240] UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:767] UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:1728] UE4Editor_Renderer!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`21'::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:883] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:954] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:701] UE4Editor_RenderCore!RenderingThreadMain() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:325] UE4Editor_RenderCore!FRenderingThread::Run() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:459] UE4Editor_Core!FRunnableThreadWin::Run() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-40942 in the post.
| 0 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.15 |
| Target Fix | 4.15 |
| Created | Jan 20, 2017 |
|---|---|
| Resolved | Jan 20, 2017 |
| Updated | Apr 27, 2018 |