bRayMarchVolumeShadow

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Unreal Engine C++ API Reference > Runtime > Engine > Materials > UMaterialExpressionVolumetricAdvancedMaterialOutput

Syntax

UPROPERTY (EditAnywhere, Category="Options")  
bool bRayMarchVolumeShadow  
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Remarks

Disable this to use the cloud shadow map instead of secondary raymarching. This is usually enough for clouds viewed from the ground and it result in a performance boost. Shadow now have infinite length but also becomes less accurate and gray scale.