When LODBias for a landscape component is set to anything greater than zero, the editor will crash.
Reproduced in 4.19.0 CL 3944462 and 4.20 Main.
Not able to be reproduced in 4.18.3 CL 3832480. This is a regression.
Result: Editor crashes
Expected: LODBias for the component will be set to number specified
Access violation - code c0000005 (first/second chance not available) UE4Editor_Landscape!FLandscapeComponentSceneProxy::GetStaticBatchElementVisibility() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\landscape\private\landscaperender.cpp:1542] UE4Editor_Renderer!FRelevancePacket::MarkRelevant() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:1832] UE4Editor_Renderer!ParallelFor() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\async\parallelfor.h:174] UE4Editor_Renderer!ComputeAndMarkRelevanceForViewParallel() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:1958] UE4Editor_Renderer!FSceneRenderer::ComputeViewVisibility() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:2808] UE4Editor_Renderer!FDeferredShadingSceneRenderer::InitViews() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\renderer\private\scenevisibility.cpp:3067] UE4Editor_Renderer!FDeferredShadingSceneRenderer::Render() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\renderer\private\deferredshadingrenderer.cpp:593] UE4Editor_Renderer!RenderViewFamily_RenderThread() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\renderer\private\scenerendering.cpp:2749] UE4Editor_Renderer!TGraphTask<`FRendererModule::BeginRenderingViewFamily'::`33'::EURCMacro_FDrawSceneCommand>::ExecuteTask() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:829] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:665] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:574] UE4Editor_RenderCore!RenderingThreadMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:331] UE4Editor_RenderCore!FRenderingThread::Run() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:465] UE4Editor_Core!FRunnableThreadWin::Run() [d:\build\++ue4+release-4.19+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-56314 in the post.
| 3 |
| Component | UE - LD & Modeling - Terrain - Landscape |
|---|---|
| Affects Versions | 4.19, 4.20 |
| Target Fix | 4.19.1 |
| Fix Commit | 3984366 |
|---|
| Created | Mar 20, 2018 |
|---|---|
| Resolved | Apr 4, 2018 |
| Updated | May 4, 2018 |
| 4609 - mamoniem |