1. Epic GamesDeveloper
  3. SecondRoughness

SecondRoughness

Controls the roughness of a secondary specular lobe.

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials > API/Runtime/Engine/Materials/UMaterialExpressionSubstrateSlab-

Syntax

UPROPERTY ()  
FExpressionInput SecondRoughness

Remarks

Controls the roughness of a secondary specular lobe. Roughness of 0 (smooth) is a mirror reflection and 1 (rough) is completely matte or diffuse. Does not influence diffuse roughness. (type = float, unit = unitless, defaults to 0.5)

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