Unreal Engine Issues
Unreal Engine Issues
Global SkyAtmosphere and Clouds Issues (Ambient Light)
UE - Graphics Features - Dec 3, 2024Ambient Light on Volumetric Clouds from Sky Atmosphere always is calculated as if the clouds are at the north pole of the planet. Using a sphere-shaped Sky Atmosphere and Volumetric Clouds causes t ...
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
Small UInstancedStaticMeshComponent::UpdateInstanceTransformById bug
UE - Graphics Features - Nov 20, 2024The call to UpdateInstanceTransform within UInstancedStaticMeshComponent::UpdateInstanceTransformById(..) sends bTeleport in place of bMarkRenderStateDirty that was added as part of Unreal Engine 5. ...
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 ...
Editor preview window for CurveLinearColorAtlas does not automatically update when their CurveLinearColor asset is changed
UE - Graphics Features - Nov 12, 2024When the CurveLinearColor asset assigned to a CurveLinearColorAtlas is edited (e.g. change the colors of the gradient), the preview window of CurveLinearColorAtlas editor does not automatically upda ...
ISM + WPO = broken motion vectors?
UE - Graphics Features - Nov 5, 2024Instanced Static Meshes will have incorrect velocity if a Material uses World Position Offset. Fixed WPO in a material causes significant velocity on the ISM. This was also replicated in //UE5/Rele ...
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 ...
Depth of Field blur is inconsistent with r.ScreenPercentage == 100 (Dynamic resolution)
UE - Graphics Features - Oct 29, 2024Depth of Field, with "r.DOF.Recombine.Quality = 0" will adjust the size of the depth in focus based on screen percentage. This might be related to over-fitting from the tile classification, because ...
Point light leaking throught thin geometry
UE - Graphics Features - Oct 29, 2024In 4.27, ray traced point lights can leak through thin meshes. This bug does not exist in Unreal Engine 5, due to many of the potential rendering areas being fundamentally changed. ...
Nanite - Skinned Meshes not working.
UE - Graphics Features - Oct 21, 2024The Nanite information and views from the Static Mesh Editor are not available to Nanite Skeletal Meshes in the Skeletal Mesh Editor. ...