1. Epic GamesDeveloper
  3. ActivationMask

ActivationMask

Each geometry copy can have one bit to make it individually deactivated (removed from TLAS while maintaining hit group indexing).

API > API/Runtime > API/Runtime/RHI > API/Runtime/RHI/FRayTracingGeometryInstance

Syntax

TArrayView < const uint32 > ActivationMask

Remarks

Each geometry copy can have one bit to make it individually deactivated (removed from TLAS while maintaining hit group indexing). Useful for culling.

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