SPIR-V Built-In

CullMaskKHR

OpTrace specified ray cull mask
CullMaskKHR

A variable decorated with the CullMaskKHR decoration will specify the cull mask of the ray being processed. The value is given by the Cull Mask parameter passed into one of the OpTrace* instructions.

Valid Usage

VUID-CullMaskKHR-CullMaskKHR-06735

The CullMaskKHR decoration must be used only within the IntersectionKHR, AnyHitKHR, ClosestHitKHR, or MissKHR Execution Model

VUID-CullMaskKHR-CullMaskKHR-06736

The variable decorated with CullMaskKHR must be declared using the Input Storage Class

VUID-CullMaskKHR-CullMaskKHR-06737

The variable decorated with CullMaskKHR must be declared as a scalar 32-bit integer value