Unreal Engine Issues
Unreal Engine Issues
Connecting Blueprint Function Input to Another Node Resets Default Value
UE - Gameplay - Blueprint - Mar 15, 2017Connecting an input of a function in a Blueprint Function Library that has a default value to a node will cause its default value to be reset to 0 when the function is called in another blueprint. ...
Rect light artifacts from NaN pixels on surfaces that are coplanar with light position
UE - Graphics Features - May 10, 2024Rect lights cause artifacts (nan pixels) on pixels of surfaces that are coplanar with light position. In RectLight.ush, in RectIrradianceLambert, at line 106, c30 is -1, so rsqrt(0) causes a nan to ...
[Metal-Epic:iOS] Directional Light graphics corruption when using the Metal Desktop Forward Renderer on iOS
UE - Graphics Features - Jan 25, 2018When enabling the Metal Desktop Forward Renderer on iOS, Directional Light's with Light Shaft Bloom enabled will cause full screen graphics corruption when looking at the light source. ...
Shadow Flickering with Lighting Channels
UE - Graphics Features - Shadows - Oct 27, 2023It looks like static meshes can invalidate large numbers of VSM pages when the geometry and the light are not on light channel 0. ...
Translucent light grid injection behavior
UE - Graphics Features - Nov 15, 2024Light injection into the Translucent Light Grid voxels does not use the correct location for clipping or attenuation. Both of these points are outside the voxel that is being updated. Light attenua ...
Crash When Building Lighting for a Level with Previously Purged Lightmaps
UE - Graphics Features - Feb 27, 2019If you go into World settings, select Force No Precomputed Lighting, rebuild lighting to purge lightmaps, uncheck Force No Precomputed Lighting, save level, quit, reload project and try rebuilding l ...
Naming a category for a function the same name as a function can cause the My Blueprints tree to display incorrectly (making the category heading look like a function)
UE - Gameplay - Blueprint Editor - Jan 19, 2018Functions in the Level Blueprint throw a warning on PIE
UE - Gameplay - Blueprint - Mar 3, 2015Functions in the Level Blueprint throw a warning on PIE: LogBlueprint:Warning: FMemberReference::ResolveMember (NewFunction_0) bSelfContext == true, but no scope supplied! Every function logs thi ...
Costs of Static Lights on Render Thread
UE - Graphics Features - Jun 9, 2016A Japanese developer's making a scene that has over 4000 static point lights. They thought the lights don't affect rendering in runtime. But they realized the RenderThread's costs become bigger. I ...
Convert to function to event incorrectly shows up when editing BP Interface Blueprints
UE - Gameplay - Blueprint Editor - Oct 29, 2020The BP interface graph shouldn't be able to convert functions to events because they are inherently all function graphs. ...