r.Lumen.ScreenProbeGather.ImportanceSample.ProbeRadianceHistory
VarUnreal Engine Var console variable.
rLumenScreenProbeGatherImportanceSampleProbeRadianceHistory
Description
Whether to Importance Sample incoming lighting from last frame's filtered traces to generate probe trace directions. When disabled, the Radiance Cache will be used instead.
Usage
r.Lumen.ScreenProbeGather.ImportanceSample.ProbeRadianceHistory [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

