Changes in 3.11.R (UE4.25.0)

Key Features

Support for next generation platforms:

• PlayStation 5
• Xbox Series X
• Stadia™

Early Access: Enlighten indirect lighting for Rect Light actors.

• Basic Rect Light properties are supported, including Source Width, Source Height, Barn Door Angle and Barn Door Length.
• Cast Enlighten Shadows option is not currently supported: this may cause light leaks where a Rect Light illuminates a thin wall.
• The Source Texture property is not currently supported.

Enlighten indirect lighting for a Directional Light with Atmosphere/Fog Sun Light enabled.

Enlighten indirect lighting for materials which use the Hair shading model.

Important changes

• Reduced render thread time spent on Enlighten updates in D3D11 when using per pixel probe lighting in combination with Reflection Capture actors that Use Enlighten.
• For a SpeedTree asset, the precompute now defaults to use the lowest-detail non-billboard LOD for Enlighten radiosity.

Other changes

• Nintendo Switch: Significantly reduced Enlighten runtime update cost for Reflection Captures with Use Enlighten enabled.

Fixed bugs

• D3D12: Fixed unexpected high Enlighten update overhead on render thread in a level containing many Reflection Capture actors with Use Enlighten enabled.
• Fixed a warning "Non-deterministic cook warning" when cooking a level which contains a Light actor.
• Fixed Enlighten data asset being incorrectly marked modified after loading a level which contains Landscape Grass.
• Fixed a shader compiler error during a full recompile of all shaders.
• Fixed a D3D12 resource leak error when the UE4 editor is closed.
• Fixed an intermittent crash in Foliage Edit mode when foliage instances are deleted.

Known issues

• This release does not include support for mobile platforms.