r.Lumen.ScreenProbeGather.ScreenTraces.HairBias
VarUnreal Engine Var console variable.
rLumenScreenProbeGatherScreenTracesHairBias
Description
Bias for screen space rays traced from hair pixels. Usually hair has pretty complex geometry and requires a special bias value.
Usage
r.Lumen.ScreenProbeGather.ScreenTraces.HairBias [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

