Unreal Engine Issues
Unreal Engine Issues
HZB Setup Mips taking considerable time in GPU Visualizer
UE - Graphics Features - Jul 19, 2016HZB Setup Mips in the GPU Visualizer seems to be taking considerable ms in 4.12 and 4.13 compared to 4.11.2. This seems to mostly affect editor/PIE GPU Visualization but looks like it should when ...
Console Command `Stat SceneRendering` is showing incorrect number of Lights in scene
UE - Graphics Features - Jan 8, 2016When using the Console Command for Stat SceneRendering the Counter section for "Lights in scene" is not accurately listing the number of lights. In a 4.10 project an empty new level is showing 16 ...
Editor windows that contain viewports cause large framerate loss
UE - Graphics Features - Feb 7, 2017When editor windows are opened that contain a viewport of some sort, the framerate of the engine drops drastically. Examples include the Blueprint Editor, Material Editor, and Persona. The viewport ...
Gear VR appears Choppy when add Widget components to the scene
UE - Platform - XR - Aug 1, 2017Gear VR appears Choppy when add Widget components to the scene (this issue was not present in earlier version of the engine in the same project (4.16 appears to be a regression for 4.17)) Note: The ...
ComponentSweepMulti returning incomplete HitResults
UE - Simulation - Physics - Jan 14, 2019ComponentSweepMulti sweeps each shape of a component, however resets OutHits at the start of a new shape, losing the prior hits, only returning the hits of the last shape swept. This is a regressio ...
Windowed fullscreen doesn't respect vsync settings
UE - Rendering Architecture - RHI - Oct 31, 2019When running in windowed fullscreen mode in a standalone build r.vsync 0 is not respected and the game always runs at a locked 60fps. When the game doesn't have focus, for instance when you press Wi ...
Expanding a macro with split struct pins causes internal compile errors
UE - Gameplay - Blueprint - Jul 27, 2017Expanding a macro that passes a struct with split struct pins to a function causes internal compile errors. Attaching sample project, can be recreated with steps above. ...
Subsurface Scattering Checkerboard with SceneColourFormat 3 (High Scalability) leads to a visual artefact when temporal upscaling is in use
UE - Graphics Features - Sep 30, 2024Primarily visible at very low internal resolutions (25-33%), the SSS checkerboard with an RGB scene colour format (r.SceneColorFormat 3) causes a double-image artefact both internally and on the sil ...
Crash on applying animation modifier for some assets
OLD - Anim - Oct 29, 2019When removing curves on some assets, a crash can occur. This seems to be due to const FSmartNameMapping* CurveMapping being null and dereferenced within UAnimationBlueprintLibrary::RetrieveContainer ...
Zero Length Raycasts/Sweeps not returning hits
UE - Simulation - Physics - Apr 11, 2019Sweeps/Raycasts do not return hits for zero length queries. This is a regression from 4.21, where zero length Sweeps/Raycasts correctly returned hits. ...