Disabling DFAO prevents landscape from contributing to Lumen scene

UE - Graphics Features - Lumen - Oct 10, 2023

From licensee: We disabled DFAO on our project (using r.DistanceFieldAO 0) to replace it with Lumen occlusion, as the combination of both was creating dark blobs under bushes and grass. However, we ...

Volumetric fog black and not updating with real-time capture skylight

UE - Rendering Architecture - Oct 20, 2023

It looks like the skylight is not updating the CPU side SH values when Real Time Capture is enabled, and thus old/empty values are sent to the fog. ...

Pixel Inspector does not display Gbuffer values properly when a mesh with a material that has Anisotropy set is in Level

UE - Graphics Features - Jan 16, 2024

This issue occurs when there is a material with Anisotropy, like the attached GIF.[Image Removed] ...

Custom buffer visualization material instance problem

UE - Rendering Architecture - Materials - Jun 28, 2024

Material Instances used in Custom Buffer Visualizations do not respect parameter overrides, and use the parent material's values. Also tested on UE5-Main, CL: 34543023 ...

Landscape Layer Painting issues when painting near the edge of delete Landscape Proxies.

UE - Graphics Tools - Terrain - Jul 19, 2024

It appears that the landscape painting tool is not correctly taking into account deleted landscape sections, resulting in artifacts inside of the weight textures. ...

'prefix parameter names' checkbox in a material function's settings does nothing.

UE - Rendering Architecture - Materials - Nov 14, 2024

Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...

Water body actor casts static shadow

UE - Graphics Tools - Terrain - Water - Jan 14, 2025

WaterBody Actors will cast static shadows in built lighting even if their Cast Shadow options are disabled. ...

Character jumping can become permanently blocked under subpar net conditions

UE - Gameplay - Player Movement - Dec 8, 2023

Problem Under laggy networking conditions, if the user rapidly presses the jump button the character can at some point stop responding to jump input. Initial Thoughts It looks like there's a logi ...

Large Memory Allocations When Adding a Landscape_WaterBrushManager

UE - Graphics Tools - Terrain - Mar 17, 2025

When a "Water Body River" is added to a Scene with a Landscape, eleven Render Targets are allocated for the water rendering. These Render Targets are sized according to the resolution of the Landsca ...