r.Lumen.ScreenProbeGather.ImportanceSample.MinPDFToTrace
r.Lumen.ScreenProbeGather.ImportanceSample.MinPDFToTrace is a console variable in Unreal Engine 5 (UE5). See what r.Lumen.ScreenProbeGather.ImportanceSample.MinPDFToTrace does, its values, and how to use this cvar in the Unreal console below.
Category: Renderer · Namespace:
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Minimum normalized BRDF PDF to trace rays for. Larger values cause black corners, but reduce noise as more rays are able to be reassigned to an important direction.
Usage
Unreal console (open with ~)
> r.Lumen.ScreenProbeGather.ImportanceSample.MinPDFToTrace 1Console variables take a value. Replace 1 with the setting you need. Run it with no value to print the current one.
Related in r
r.Lumen.ScreenProbeGather.HardwareRayTracing.NormalBiasVarr.Lumen.ScreenProbeGather.HardwareRayTracing.Retrace.FarFieldVarr.Lumen.ScreenProbeGather.ImportanceSampleVarr.Lumen.ScreenProbeGather.ImportanceSample.BRDFOctahedronResolutionVarr.Lumen.ScreenProbeGather.ImportanceSample.HistoryDistanceThresholdVarr.Lumen.ScreenProbeGather.ImportanceSample.IncomingLightingVarr.Lumen.ScreenProbeGather.ImportanceSample.NumLevelsVarr.Lumen.ScreenProbeGather.ImportanceSample.ProbeRadianceHistoryVarr.Lumen.ScreenProbeGather.IntegrationTileClassificationVarr.Lumen.ScreenProbeGather.IrradianceFormatVarr.Lumen.ScreenProbeGather.MaxRayIntensityVarr.Lumen.ScreenProbeGather.OctahedralSolidAngleTextureSizeVar