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> Unreal Engine API Reference > Runtime > RHI > FRayTracingGeometryInstance > Mask

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Mask

Mask that will be tested against one provided to TraceRay() in shader code.

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Syntax

uint8 Mask

Remarks

Mask that will be tested against one provided to TraceRay() in shader code. If binary AND of instance mask with ray mask is zero, then the instance is considered not intersected / invisible.

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