Unreal Engine Issues
Unreal Engine Issues
Breaking a level instance can not remove the level instance from world
UE - World Creation - Worldbuilding Tools - Level Instances - Nov 5, 2024Currently there is no stable way to break level instances ...
Optimization: CharacterMovementComponent doesn't need overlap check for combining moves for stationary characters
UE - Gameplay - Player Movement - Nov 4, 2024The overlap checks are used to see if we can warp back to the previous position to combine network moves to longer moves, but making sure we wouldn't put the character in penetration when rolling ba ...
If pasting a section causes an overlap, don't allow it if the track doesn't allow overlapping sections
UE - Anim - Sequencer - Nov 4, 2024Binding lifetime sections aren't meant to overlap, but duplicating one, or pasting one can cause them to overlap, triggering an ensure. Duplication and copying and pasting are typical actions, so th ...
Light Function and World Position in 5.4
UE - Graphics Features - Nov 4, 2024When rendering a Light Function into the Translucency Lighting Volume, the World Position Material Expression returns the position relative to the Camera (unrotated), not the World. This can be mor ...
Hair Material's Tangents input has no effect in PathTracing
UE - Graphics Features - Path Tracer - Nov 1, 2024Expectation: Tangent should work on Hair Material ...
Build lighting for single stationally light level generates a shadow map in PF_B8G8R8A8 format
UE - Texture - Nov 1, 2024Texture format override to BGRA8 due to changes in CL-30603716. The following code can restore the previous behavior. void FShadowMapPendingTexture::StartEncoding(ULevel* LightingScenario, ITexture ...
Null Material Layers in Material Instances cause Opacity Mask and WPO to break on Nanite Meshes
UE - Rendering Architecture - Materials - Oct 31, 2024When a Material Instance is loaded that has a nullptr layer in StaticParametrs.Materiallayers. The Material Instance will create it's own CachedExpressionData but the ConnectedParameterMask will be ...
Static/stationary child actor components are invisible and/or move position when placed inside a dynamically loaded level
UE - Gameplay - Components - Oct 31, 2024When loading a non-world partitioned level into a persistent world partitioned level, parent actors with child actor components within the loaded map will move position or become invisible. Within t ...
Reduce the overhead of World Partition cells UObjects on GC
UE - World Creation - Worldbuilding Tools - World Partition - Oct 30, 2024Users with large numbers of UObjects (500k+) that are using World Partition want to enable GC actor clustering to handle streaming levels but no performance gains are realized when enabling GC clust ...
Mobile Depth of Field blurry eveywhere
UE - Platform - Mobile - Oct 30, 2024user reports I investigated the problem throught the frame capture tools and found that on a real device (iPhone 15 Pro in my case), the depth texture for the SunMask pass is not set (a dummy black ...