D3D12RHI crash using laptops internal display

UE - Rendering - RHI - Feb 17, 2020

Running the engine with DX12 enabled on MSI GS75 Stealth 9SF results in a D3D crash when using the internal display on the laptop. *Note: Unable to reproduce the crash. The user receiving the cra ...

Spline mesh actor + Vulkan RHI, rendering artifacts

UE - Rendering - RHI - Feb 7, 2020

Rendering artifacts when using spline meshes with Vulkan enabled. Recent Nvidia drivers may be required for repro. (Users version: 441.66 , My Local Version: 441.12) Confirmed in MAIN 4.25 @ CL 11 ...

Shader compiler errors when using enclosed local variables in a material while ray tracing is enabled

UE - Rendering - RHI - Jan 23, 2020

A licensee is seeing an issue with a couple of post process materials after enabling ray tracing. While the materials presenting the issue fail to compile for different reasons, they both refernce t ...

Materials using the Tessellation mode 'PN Triangles' cause objects to incorrectly render in Wireframe view mode when selected

UE - Rendering - RHI - Jan 21, 2020

Creating a material that has it's tessellation mode set to "PN Triangles" and assigning it to an object results in the objects geometry to not properly display in Wireframe view mode.  Tested i ...

SSGI doesn't function properly using Vulkan

UE - Rendering - RHI - Jan 20, 2020

Screen Space Global Illumination appears really dark when using the Vulkan RHI on Windows and Linux. This behavior is also present in a Shipping build. This was reported and tested on 4.24.1 (CL-1 ...

Linking Error Happens When Trying to Inherit From TextureRenderTarget2D in C++

UE - Rendering - RHI - Jan 16, 2020

The engine has a linker error when trying to inherit from TextureRenderTarget2D. This seems related to https://jira.it.epicgames.net/browse/UE-5050. Found in 4.24.1 CL#10757647 Reproduced in 4.23 ...

[Feature Request] Allow include files to be added in custom nodes via separate entry

UE - Rendering - RHI - Jan 10, 2020

Suggested feature by a licensee and there have been a few use cases recently we've seen. [Link Removed] for vis ...

DX12 crash when fullscreen app looses focus.

UE - Rendering - RHI - Dec 19, 2019

Morph target LOD over 0 not worrking with GPU skin

UE - Rendering - RHI - Dec 17, 2019

I do not know what happen here and I need the help of the rendering team to debug this issue. There is no log at all even with -d3debug If you import the file SK_LOD_Morph_Working.fbx its a similar ...