With Ray Tracing Enabled And The RenderDoc Plugin Enabled Shadows Don't Render Correctly On Reflective Materials

Rendering - Ray Tracing - Jan 23, 2020

When the RenderDoc plugin is installed with raytracing enabled shadows don't render correctly. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#11087956 ...

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

Rendering - Ray Tracing - 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 ...

DebugExecBindings increases when RenderDoc is enabled and started

Rendering - Jan 23, 2020

This problem is caused by the addition of DebugExecBindings every time at startup, so the setting keeps increasing. ...

Map container which has struct type value might be displayed inside unnecessary hierarchy

Tools - Slate - Jan 23, 2020

Essentially, A bug in --UE-77690-- comes up with only customized struct property. If a struct doesn't have customization, it can be displayed compact without "Element X" node hierarchy. It is the ...

Planar Reflections Cause Big Performance Hit In Packaged VR Projects

XR - Jan 22, 2020

Planar reflections notably lower performance in packaged VR project. Linked is an example project and an example package. [Link Removed]. This was tested on a Vive Pro and Oculus Rift(not Rift S). ...

Crash hovering mouse over User Defined Struct array variable on Widget Blueprint breakpoint

Tools - UMG - Jan 22, 2020

Looks a crash caused by an access violation when trying to export text from the property for the tooltip. Seems to be limited to arrays of user defined structs and the Widget Blueprint editor. ...

HUD functionality is lost load after upgrading project to 4.24.1

Tools - Jan 22, 2020

Upgrading a project to version 4.24.1 results in a loss of functionality that worked from 4.20 to 4.23.1 without having made any changes. Test Project: [Link Removed] Tested: 4.25 CL: 11062379 ...

Material and Animation do not stop even if Game pauses when Material domain is User Interface

Tools - UMG - Jan 22, 2020

For Animation and Tick, we have confirmed that pausing can be done by stopping Native Tick. But we can't stop with Material. Widget Component can change the handling of time with EWidgetTimingPolicy ...

The Radial Blur Shader Doesn't Look Correct With Raytracing Translucency Enabled

Rendering - Ray Tracing - Jan 21, 2020

The Radial Blur shader doesn't look correct with ray tracing translucency enabled. Found in 4.24.1 CL#10757647 Reproduced in 4.25 Main CL#11050671 ...

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

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 ...