r.Lumen.ScreenProbeGather.TwoSidedFoliageBackfaceDiffuse
VarUnreal Engine Var console variable.
rLumenScreenProbeGatherTwoSidedFoliageBackfaceDiffuse
Description
Whether to gather lighting along the backface for the Two Sided Foliage shading model, which adds some GPU cost. The final lighting is then DiffuseColor * FrontfaceLighting + SubsurfaceColor * BackfaceLighting. When disabled, SubsurfaceColor will simply be added to DiffuseColor instead.
Usage
r.Lumen.ScreenProbeGather.TwoSidedFoliageBackfaceDiffuse [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

