Unreal Engine Issues
Unreal Engine Issues
Partially loaded level instance becomes fully loaded after editing nested level instance
UE - World Creation - Worldbuilding Tools - Level Instances - Sep 10, 2024Affect Indirect Lighting While Hidden can affect the environment after data layer unload in editor
UE - Rendering - 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 ...
Incremental GC vs Loading Screens deadlock
UE - Core - Systems - Sep 5, 2024A licensee is reporting that using a loading screen with the incremental garbage collector can result in a dead lock when a loading screen is displayed. The licensee found out that: -------------- ...
FDateRange cannot be declared as UPROPERTY
UE - Core - Systems - Sep 4, 2024Unlike other range wrapper structs, such as FFloatRange, marking a FDateRange as a UPROPERTY results in the following error: error : Unable to find 'class', 'delegate', 'enum', or 'struct' with nam ...
Does FSlateElementBatcher::AddCachedElements need to check if r.HDR.UI.CompositeMode is enabled?
UE - Editor - UI Systems - Aug 28, 2024When a specific configuration of HDR cvars are set, PIE in a New Editor Window will not render the game world. Settings (For DefaultEngine.ini): ```[SystemSettings] r.AllowHDR=1 r.HDR.Display.Color ...
Material instance UI doesn't show correct parameter preview for logic in a material function
UE - Rendering - Architecture - Materials - Aug 27, 2024The Material Instance UI doesn't show the correct parameter values when the logic is moved from the material graph into a material function used in that material graph. Example setup showing the wr ...
BlendListByEnum assumes that enum values are sequential
UE - Runtime - Anim BP - Aug 26, 2024FAnimNode_BlendListByEnum assumes that values within a custom enum type are sequential (ie. the index 0 = value 0, index 1 = value 1). But this is not true of all custom enum types, for example: U ...
Lumen interior light leaking occurs with realistic sun Lux values (20k)
UE - Rendering - Graphics Features - Lumen - Aug 23, 2024When a realistic sun Lux value of 20,000 for the sun directional light, interior light leaking is much more pronounced then when using the default directional light Lux value of 10 Lux. ...
A sampling result of DistanceFieldAOHistory is shifted to a wrong position.
UE - Rendering - Graphics Features - Aug 21, 2024DistanceFieldAOHistory introduces ghosting at low scalability and low screen percentages. This can lead to AO artifacts and a ghosting effect from the character. This issue was also observed on //U ...
Ray traced shadow appears for translucent material after LOD change
UE - Rendering - Graphics Features - Ray Tracing - Aug 21, 2024When ray-traced shadows are enabled, the shadow for a completely translucent mesh appears when the LOD changes based on distance. ...