Whether to build distance fields of static meshes, needed for Lumen Software Ray Tracing and Distance Field AO, which is used to implement Movable SkyLight shadowsEnabling will increase mesh build times and memory usage. Changing this value will cause a rebuild of all static meshes.
Usage
r.GenerateMeshDistanceFields [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.
