Lit Translucency Receiving Shadows with Forward Shading Enabled

UE - Graphics Features - Aug 13, 2018

When forward shading is enabled, particles that have materials with their lighting mode set to "VolumetricNonDirectional" will recieve shadows. Attached images provided by user. Found in 4.19 CL# ...

Actor foliage does not respect "foliage.CullDistanceScale"

UE - World Creation - Worldbuilding Tools - Oct 15, 2024

Actor foliage does not respect the "foliage.CullDistanceScale" console variable. This was brought up in a UDN: [Link Removed] ...

ES2 Fallback Fails on Nougat Devices that do not support Vulkan

UE - Platform - Mobile - Aug 28, 2016

Discovered this while doing RC candidate testing for 4.13 Works fine in all other use cases: Nougat devices that support Vulkan Marshmallow devices that support Vulkan Marshmallow devices that don' ...

Low res textures (MobileContentScaleFactor) on iPad Pro 10.5"

UE - Platform - Mobile - Jul 31, 2017

There's no device profile to set MobileContentScaleFactor for iPadPro 10.5". It picks up other rendering settings properly from the iPadPro family, but this doesn't set MobileContentScaleFactor. T ...

Subsurface materials display dark lines in the middle of the viewport

UE - Graphics Features - Dec 8, 2017

AMD gpus are displaying an issue with subsurface materials. Dark lines appear on the material that run through the middle of the viewport, (See screenshot attached). This was seen on AMD drivers 17. ...

Volumetric Light Fog Leak through objects

UE - Graphics Features - Dec 31, 2018

Any environment with volumetric fog enabled will have a light leak which appears through objects.  Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

The "Meshes" value of the LLM for dx11 is considerably larger than that for dx12.

UE - Graphics Features - May 9, 2022

We hope that the difference in GraphicsRHI will not cause such a big difference, but we need to make sure that there are no measurement omissions in the case of DX12.  ...

Missing DirectX redist on clean machine

UE - Foundation - Core - Apr 10, 2017

Running a packaged UE4 game with app-local dependencies on a clean Windows machine will fail due to missing XInput DLLs. These components are not distributed with Windows by default any more. We sho ...

Vertex Interpolate Node Doesn't Work with Lightmass

UE - Graphics Features - Lumen - Aug 8, 2018

The vertex interpolate node doesn't work with lightmass. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4258917 ...

Investigate crash reported with 4.16 on Sony Xperia Z3 running Marshmallow

UE - Platform - Mobile - Jun 28, 2017

A user has reported a crash that is occurring on his Sony Xperia Z3, https://answers.unrealengine.com/questions/667998/4161-dev-build-app-crashes-on-start-unfortunately.html The user has attached ...