DDX

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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials > API/Runtime/Engine/Materials/UMaterialExpressionRuntimeVirtua-_2

Syntax

UPROPERTY (Meta=(RequiredInput="false"))  
FExpressionInput DDX  
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Remarks

Derivative over the X axis. Enabled only if MipValueMode is one of the derivative modes. Meaning depends on the derivative mode.