Unreal Engine Issues

unreal.py stub can overload IDE parsing limits

We should consider splitting this into separate per-module files that are merged together via imports. Any strong dependencies (eg, inheritance) need to import the type being inherited. ...

SingleLayerWater is rendering brighter shallow water with fog

Shallow water areas in scenes with exponential height fog will be brighter than they should be. Possibly due to the fog being applied twice in the SingleLayerWater shading model. ...

Color changing through material parameter collection in a emissive material will not affect lightmap baking, unless recompile the material.

PDO black pixel artefacts while moving

Worth noting on PC this is visible but doesn't always occur.  [Image Removed] ...

Color space transform in the UI composition is incorrect on DX12 HDR (r.HDR.UI.CompositeMode=1)

Color space conversion in the UI composition is incorrect on DX12 HDR. In the main() function In CompositeUIPixelShader.usf, you can see the following color space transform.// sRGB -> RRT -> ODT ...

Masked areas render as black if material uses any virtual texture

Masked materials that sample virtual texture don't function correctly. They render black instead of masked. This happens when there is no depth pre pass enabled. Automatically enabling depth pre p ...

DFAO artefacts created by landscape painted invisible in cooked builds

Looks like the issue stems from the DistanceFieldBentNormalAO pass ...

Decals can't use TransformLocalPositionToWorld material node

Likely we just need to create a new macro to enable TransformLocalPositionToWorld and TransformLocalPositionToPrevWorld in alternative use cases such as this. ...

MergeActors Proxy Tool Outputs Incorrect Result with HISMC

Running the MergeActors proxy tool on an actor that has an HISMC and both its scale and rotation changed will output a proxy incorrectly. ...

[Feature Request] Allow custom node to access the functions in MaterialTemplate.ush

For example, If you try to call GetMaterialOpacityMaskClipValue() from a custom node, the editor will report a compilation error, as shown in the attached image.[Link Removed] [SM5] /Engine/Generat ...