'Decal Blend Mode' in the Result node is missing

UE - Rendering - Materials - Mar 8, 2022

'Decal Blend Mode' in the Result node is missing. The user that reported this noticed it when converting from early access to Preview 1. Their emissive decals stopped blending. ...

RVT displaying lower LOD VTs by default in editor

UE - Rendering - Materials - Feb 28, 2022

See licensee description for further details. ...

Crash when writing WPO using SceneDepth

UE - Rendering - Materials - Feb 25, 2022

VertexInterpolators allocate unused params which generate extra shader ops

UE - Rendering - Materials - Feb 17, 2022

As a follow up on this: https://udn.unrealengine.com/s/question/0D54z00006yxUdXCAU/vertexinterpolators-problem VertexInterpolators are added to the HLSL code even if unused and you demand the HLSL ...

Broken dither opacity on skeletal mesh

UE - Rendering - Materials - Feb 16, 2022

"PivotPainter_PerObjectData" node's "Random Value Per Element" output crashes with an assertion when used with a "Cross" node

UE - Rendering - Materials - Jan 31, 2022

This is a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0 CL18747223 GitHub When using the Random Value Per Element from a PivotPainter_PerObjectData with a Cross nod ...

Cannot change blend mode from material instance

UE - Rendering - Materials - Jan 25, 2022

When change the shading model, can also change the blend mode. ...

Updating a material layer may not update materials that are using that material layer instance

UE - Rendering - Materials - Jan 7, 2022

Material layer instances do not generate a valid UMaterialFunctionInterface::StateId. For this reason, materials and material instances that use material layer instances will not recompile their sh ...

Duplicating skeletal mesh assets with groom in world outliner changes Hair UV layout

UE - Rendering - Materials - Dec 10, 2021

Having duplicate characters with groom, hair UV layout changes which results in visible shift in character look and also changes color based on camera distance and lights in the scene (hair would fl ...

Reflection result of clear coat bottom normal is not correct.

UE - Rendering - Materials - Dec 9, 2021

This problem tends to appear in the southern hemisphere of spherical objects. It is not reproduced in 4.19. ...