SPIR-V Built-In

WorldRayOriginKHR

Ray origin in world space
WorldRayOriginKHR

A variable decorated with the WorldRayOriginKHR decoration will specify the origin of the ray being processed, in world space. The value is the parameter passed into the pipeline trace ray instruction.

Valid Usage

VUID-WorldRayOriginKHR-WorldRayOriginKHR-04431

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

VUID-WorldRayOriginKHR-WorldRayOriginKHR-04432

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

VUID-WorldRayOriginKHR-WorldRayOriginKHR-04433

The variable decorated with WorldRayOriginKHR must be declared as a three-component vector of 32-bit floating-point values