r.Lumen.Reflections.RadianceCache.RoughnessFadeLength
VarUnreal Engine Var console variable.
rLumenReflectionsRadianceCacheRoughnessFadeLength
Description
Roughness range for fading between radiance cache roughness tresholds.
Usage
r.Lumen.Reflections.RadianceCache.RoughnessFadeLength [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

