Unreal Engine Issues
Unreal Engine Issues
Merged actors cannnot cast shadows when source actors Cast Shadows is disabled
UE - Engine Scaling - Streaming - Merge Actor - Aug 19, 2020Merging actors with cast shadows disabled causes the merged actor to be unable to cast shadows at all. Toggling the Cast Shadows option does not resolve the issue. This is seen in //UE4/Release-4.2 ...
"Complex Collision Mesh" is not rendered in "Visibility Collision" view mode
UE - Runtime - Simulation - Jul 29, 2020Consider this function in StaticMeshRender.cpp. FStaticMeshSceneProxy::GetDynamicMeshElements Now look for this line in the function: if(bDrawComplexWireframeCollision || (bInCollisionView && bDr ...
Character rotations can diverge between clients and client/server briefly under packet loss and using bOrientRotationToMovement
UE - Runtime - Character - Jun 4, 2020At some points the rotations will diverge briefly while the client and server attempt to rotate to the orientation direction by going different directions about the rotation axis. ...
Scene Capture is not capture the planar reflection
UE - CAPT - Color Pipeline and Rendering - Jan 28, 2020https://udn.unrealengine.com/questions/545555/view.html The issue reports as a UDN ticket. Planar reflection is not captured by scene capture. [Link Removed] commented, I suspect it has to do w ...
SteamVR - WidgetComponent DrawAtDesiredSize lag spike
UE - Platform - XR - Dec 3, 2019Having an actor with a WidgetComponent + DrawAtDesiredSize will cause a lag spike when size changes in VR. Additionally, If you enter a value other than 100 in SetWorldToMetersScale the 'draw at ...
[Feature Request] SingleWaterLayer Materials don't receive shadows with Baked or Partially Dynamic Lighting
UE - Rendering - Features - Dec 2, 2019Using baked and dynamic lighting produces varying results when implementing SingleWaterLayer Materials. This was reported and tested in 4.24 Preview 4 (CL-10387632) and reproduced in Main 4.25 (CL ...
Getting Fullscreen or Windowed Resolutions doesn't fully execute on Linux
UE - Rendering - RHI - Oct 28, 2019When using "Get Supported Fullscreen Resolutions" on UE when built with Vulkan, no values are printed out. This is an issue with any platform that builds UE with -vulkan, not just Linux. In Engine ...
LODbias settings appear to have no effect when specified by GPU on android
UE - Platform - Mobile - Systems - Oct 3, 2019When setting the LODbias via the device profile for a specific Android GPU it does not appear to have an affect on the textures when run on the device ...
Directional light triggers 'too many overlapping lights' error in forward shading
UE - Rendering - Features - Sep 24, 2019The underlying reason seems to be that the stationary lights require SM channels for casting shadows from movable objects and they are assigned channels 0,1,2 by lightmass (or somewhere along the w ...
Texture Object Parameter Being Read Even If It Is Not Used In a Material
UE - Rendering - Features - Jul 17, 2019Texture Object Parameter Being Read Even If It Is Not Used In a Material. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL# 7053642, 4.23 Preview 2 CL# 7321677, 4.24 CL# 7329126 This is ...