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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials > API/Runtime/Engine/Materials/UMaterialExpressionVolumetricAdv-_1
Syntax
UPROPERTY (
Meta=(RequiredInput="false", ToolTip="Parameter 'g' input to the second phase function describing how much forward(g<0) or backward (g>0) light scatter around. Valid range is [-1,1]. Defaults to ConstPhaseG2 from properties panel if not specified. Evaluated per sample if EvaluatePhaseOncePerSample is true."))
FExpressionInput PhaseG2
Remarks
Parameter 'g' input to the second phase function describing how much forward(g<0) or backward (g>0) light scatter around. Valid range is [-1,1].