Unreal Engine Issues
Unreal Engine Issues
Point lights affect indirect lighting on RTGI much less than other types of lights
UE - Graphics Features - Lumen - Aug 4, 2020Only point lights affect indirect lighting on RTGI much less than other types of lights.[Link Removed] Indirect lighting of baked lightmaps look much stronger than RTGI.[Link Removed] Apparently, ...
Android streaming audio repeats at start if start time is 0.0
UE - Platform - Mobile - Nov 18, 2015An audio file needing decoding (streaming) will repeat at the beginning of play if the start time is 0.0. ...
Fields with Maximum resolution are not affecting all leaves of a Geometry Collection
UE - Simulation - Physics - Destruction - Apr 25, 2025Fields with Maximum resolution are not affecting all leaves of a Geometry Collection on 5.4 and onwards. When calling GetRelevantParticleHandles() a Maximum Resolution field does return all particl ...
Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor
UE - Graphics Features - Sep 9, 2024After setting Affects Indirect Lighting While Hidden but before saving the level, the emissive contribution persistents through datalayer visibility toggles. This does not appear to occur in PIE, on ...
Setting the Falloff Distance of a Sound Wave/Cue to 0.0 will no longer Play Sound
UE - Audio - Jan 13, 2016As the title suggests, whenever you add a Sound Cue or Wave to a level and set it's 'Falloff Distance' to 0.0 the sound will no long play. I have attached a project to provide a simple regression t ...
Crash during shader compilation when r.Shaders.Optimize=0
UE - Rendering Architecture - Shaders - Mar 11, 2024The primary shader crashing is "FVisualizeLumenSceneCS" which I've put in the callstack section, but I think this is more likely a binding problem as I'm also see the following crash with cloud shad ...
UV Import layout error increases with movement of UVs away from 0-1 Space
Tools - May 27, 2015When a user sets up an unwrap using a space outside the original 0 to 1 space the unwrap will increasingly show errors of positioning. For Example, in the following images the lower left vertex of ...
Get Font Size returns 0.0 for default (null) font value
UE - Gameplay - Jan 21, 2015When using the default value in a "get text size" node, the height and width return 0.0. Note: potentially returning null value as no hard value is presented to font. James: Should use same fall ...
Anisotropy of base disappears when clear coat is greater than 0 when Substrate is enabled
UE - Graphics Features - Substrate - Jun 24, 2024Anisotropy from the base of a material disappears when clear coat is used. Car paint with base specular_anisotropy at 0.5 and coat at 0.0 [Image Removed] When coat is 0.0: [Image Removed] ...
Preview rendering does not update when slider is moved below 0.0 in timeline on in Niagara Editor.
UE - Niagara - Jul 26, 2023Workaround in UE5.3: UNiagaraComponent::TickComponent if (AgeDiff < 0.0f) { SystemInstanceController->Reset(FNiagaraSystemInstance::EResetMode::ResetAl ...