Unreal Engine Issues
Unreal Engine Issues
VolumeLightingSamples are not generated correctly
UE - Graphics Features - Lumen - Aug 30, 2019Lightmass.exe SampleVolume.cpp seems to generate VolumeLightingSamples correctly. After that, import processing is performed with Lightmass.cpp ImportVolumeSamples (), but it seems that it is not i ...
Material Editor: Material Expression Constant Node Preview Incorrect Color
UE - Rendering - Architecture - Materials - Jun 4, 2020Cannot set background color for UI Domain material preview
UE - AI Workflows - UI Systems - UMG - Dec 18, 2023SetBlendState has HDR UI override baked in
UE - Rendering - Architecture - Mar 20, 2026SetBlendState() is called from non-UI code but has HDR UI overrides baked in. The UI specific code should be moved to the UI code that calls SetBlendState() - likely in FCanvas, or the function sho ...
When creating a widget in the Character blueprint it is duplicated twice for each player in a multiplayer project
UE - Editor - UI Systems - Dec 24, 2014When adding the widget inside the character blueprint it causes the widget to be created twice for each player (2 player makes 4 copies of the widget). ...
The Show Collision option in the Viewport does not show all collision during Simulate
UE - Simulation - Physics - Jan 30, 2015The Show Collision option in the Viewport does not show all collision during Simulate. ...
Scrollbars bounce back when scrolling with the mouse wheel
Tools - Aug 8, 2016Multiple scrollbars throughout the editor bounce back when the user scrolls with the mouse wheel. The effect looks like the scrollbar is rubber banding when scrolled. This issue has been found wi ...
Crack Free Displacement is Flattening Displacement on Landscapes
UE - LD & Modeling - Terrain - Landscape - Nov 18, 2016If a user enables 'Crack Free Displacement' when using tessellation on landscapes, the displacement becomes flattened. This does not occur on regular static meshes, and seems to be tied only to land ...
Custom Node using GetPointClampedSampler causes Crash
UE - Graphics Features - Nov 8, 2016A licensee is getting a crash when using the GetPointClampedSampler within a Custom Node. Regression? No, this crash occurs in 4.12.5, 4.13.2, and the 4.14 preview 3 release. ...
DrawMaterialSimple() disrupts widgets being drawn to the screen depending on widget hierarchy
Tools - Aug 28, 2015Calling the HUD::DrawMaterialSimple() function may cause blueprint widget elements to not be drawn on screen depending on the hierarchy of the widget. Google Drive link to Project: [Link Removed] ...