Forward Rendering Lightmap Density view flicker

Rendering - Aug 20, 2019

The shaders flicker when in Lightmap Density viewmode after enabling Instanced Stereo Rendering in Project Settings > Engine > Rendering > VR  Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), ...

Translucent materials that use a render target has an incorrect alpha when using ES3.1 Preview in Editor

Rendering - Aug 20, 2019

The opacity of a render target used in a material appears to get over written when previewing Android ES3.1 in PIE if the material is set to be translucent. ...

MaxDrawDistance does not work with HLOD

Rendering - Aug 19, 2019

1. Create HLOD. 2. Set DesiredMaxDrawDistance. 3. DistanceCulling does not work. ...

Paper2D performance regression due to TArray resizing

Rendering - Aug 16, 2019

We've noticed after upgrading our heavy Paper2D project to 4.22 that tilemap performance has been massively degraded compared to previous versions. After some digging we found out that it's due to a ...

Color obtained in Retainer Box differs from color visible in material preview when set by Vector Parameter

Rendering - Aug 12, 2019

Color set by Vector Parameters in a material differs in preview from color obtained in retainer box. Obtained color does not match either sRGB or Linear values of color visible in material preview. ...

Deferred Decals Fade In With No Fade Duration Set

Rendering - Aug 9, 2019

Decals fading in with Fade Duration set to zero. Found in 4.21 CL# 4753647, 4.22 CL# 7053642, 4.23 Preview 5 CL# 7838574 ...

Static Mesh flicker in Player Collision Viewmode

Rendering - Aug 8, 2019

All UCX_geometry that have bounds larger than its geometry flicker when in Player Collision Viewmode. Tested in: 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 P5(CL - 7838574), 4.24 (CL - 786 ...

Certain combinations of 'bRenderStatic' and 'bNoSkeletonUpdate' on SkeletalMeshComponent produce undesirable behavior.

Rendering - Aug 7, 2019

Issues observed:  - When bRenderStatic is on and bNoSkeletonUpdate is off, CachedMeshDrawCommands takes a significant chunk of time, because the scene primitive transform is being updated every fra ...

Procecdural Mesh Components without a material assigned crashes on conversion to Static Mesh

Rendering - Aug 6, 2019

This bug doesn't occur in 4.21. The issue is at line 157 in ProceduralMeshComponentDetails.cpp . When the procedural mesh has a material the crash doesn't occur. File location: Runtime/ProceduralMe ...