HitTriangleVertexPosition

Description

Get the vertex positions of the currently hit triangle in any-hit or closest-hit shader. https://github.com/KhronosGroup/GLSL/blob/master/extensions/ext/GLSL_EXT_ray_tracing_position_fetch.txt

Signature

vector<float, 3> HitTriangleVertexPosition(uint index);

Parameters

index : uint

Index of the vertex (0-2)

Return value

World-space position of the specified vertex

Remarks

Requires ray tracing position fetch extension

Availability and Requirements

Defined for the following targets:

glsl

Available in stages: closesthit, anyhit.

spirv

Available in stages: closesthit, anyhit.

Requires capability: spvRayTracingPositionFetchKHR.

See Also

GL_EXT_ray_tracing_position_fetch