GeometryIndex

Description

Returns the index of the geometry that was hit in an intersection, any-hit, or closest-hit shader.

Signature

uint GeometryIndex();

Return value

Zero-based index of the geometry in the current instance

Remarks

Available in intersection, any-hit, and closest-hit shaders

Availability and Requirements

Defined for the following targets:

hlsl

Available in stages: intersection, closesthit, anyhit.

glsl

Available in stages: intersection, closesthit, anyhit.

spirv

Available in stages: intersection, closesthit, anyhit.

Requires capability: spvRayTracingKHR.