Sorting Issue With Many Overlapping GPU Paricles

UE - Graphics Features - Feb 6, 2017

GPU particles have a strange sorting priority once a significant amount of overlap starts happening. Changing the sort mode doesn't influence this effect at all. While on CPU particles changing the ...

Skeletal meshes with recently generated LODs will not change LODs in viewport

OLD - Anim - Feb 15, 2017

REGRESSION No Skeletal meshes that have recently had LODs auto-generated in the editor will not change LOD levels in the level viewport. This only occurs when the user is NOT playing or simulating ...

Display states from Solidworks assemblies are not correctly imported

UE - Editor - Content Pipeline - Datasmith - Importer - Jan 30, 2019

FCanvasTriangleRendererItem relies on BaseVertexIndex not being zero.

UE - Rendering Architecture - RHI - May 20, 2019

The root of this issue is that FLocalVertexFactory is doing manual vertex fetch in the shader. In HLSL, this relies on SV_VertexId. In GLSL, it's gl_VertexId. HLSL does not include the base vertex i ...

Editor hits Asserts when trying to use debug rendering such as ShowFlag.LODColoration

UE - Rendering Architecture - RHI - Sep 22, 2020

The assert in BasePassRendering.cpp:693 fires, crashing to desktop when using this console command in the editor, in PIE, and closes out the window when playing in Standalone. Does not crash when us ...

Incorrectly displayed LOD VertexColor until Paint Mode is Selected

Tools - Mar 18, 2016

It seems that the attachment project's assets are Incorrectly displayed regarding LOD VertexColor until paint mode is selected. I attached the movie to explain this problem by licensee. Near LOD0 s ...

[CrashReport] UE4Editor_D3D11RHI!FD3D11DynamicRHI::SetResourcesFromTables<FD3D11PixelShader>() [d3d11commands.cpp:1500]

UE - Graphics Features - Jul 5, 2018

User comments in crash group:Light exort crashSwarm agent crash.Building lighting 1496 #if !(UE_BUILD_SHIPPING || UE_BUILD_TEST) 1497 if (!Buffer) 1498 { 1499 ***** UE ...

Baked materials containing Texture Object are black

UE - Graphics Features - Apr 9, 2019

Using a texture object in material when creating a baked material will result in black material. Confirmed in 4.23 MAIN @ CL 5806859 User also reports "this also applies to the material as seen by ...

Crash on IOS with spotlight shadow

UE - Platform - Mobile - Apr 13, 2023