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 ...

Virtual Texturing causes crash

Rendering - Jul 29, 2019

Virtual streaming a 4K texture and setting the max texture size to 2048 causes the engine to crash. Tested in 4.21.2 (CL - 4753547), 4.22.3 (CL - 7053647), 4.23 (CL - 7445012), 4.24(CL - 7646041) ...

Material with Custom Expression at Vertex Shader Stage Does Not Compile

Rendering - Jul 22, 2019

When Custom expression is connected to custom UV then material wont compile. This is working as expected in 4.22 CL# 7053642 Found in 4.23 CL#7321677 and 4.24 CL# 7321677 This is a regression. ...

Fullscreen Editor Crash when setting both IndexBuffers to False

Rendering - Jul 22, 2019

When setting both IndexBuffers to False the Editor will crash when attempting to use Fullscreen mode with F11. ...

DepthFade does not appear to work Vulkan preview with MobileHDR off

Rendering - Jul 22, 2019

Depthfade does not appear to be working with vulkan if Mobile HDR is disabled. ...

Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled

Rendering - Jul 19, 2019

Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled.  Working as expected in 4.22 CL# 7053642 Found in 4.23 Preview 2 CL# 7321677 and 4.24 CL# 7437539 This is a regression   ...