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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials > API/Runtime/Engine/Materials/UMaterialExpressionSubstrateAdd
Syntax
UPROPERTY (EditAnywhere, Category=Mode)
uint32 bUseParameterBlending: 1
Remarks
Merge A and B into a single material by mixing their inputs rather than their evaluation. This makes lighting evaluation cheaper (Default: off)