HitTriangleVertexPositionsKHR(3)

Name

HitTriangleVertexPositionsKHR - Vertices of an intersected triangle

Description

HitTriangleVertexPositionsKHR

A variable decorated with the HitTriangleVertexPositionsKHR decoration will specify the object space vertices of the triangle at the current intersection in application-provided order. The positions returned are transformed by the geometry transform, which is performed at standard floating-point precision, but without a specifically defined order of floating-point operations to perform the matrix multiplication.

Valid Usage

  • VUID-HitTriangleVertexPositionsKHR-HitTriangleVertexPositionsKHR-08747
    The HitTriangleVertexPositionsKHR decoration must be used only within the AnyHitKHR or ClosestHitKHR Execution Model

  • VUID-HitTriangleVertexPositionsKHR-HitTriangleVertexPositionsKHR-08748
    The variable decorated with HitTriangleVertexPositionsKHR must be declared using the Input Storage Class

  • VUID-HitTriangleVertexPositionsKHR-HitTriangleVertexPositionsKHR-08749
    The variable decorated with HitTriangleVertexPositionsKHR must be declared as an array of three vectors of three 32-bit float values

  • VUID-HitTriangleVertexPositionsKHR-HitTriangleVertexPositionsKHR-08750
    The variable decorated with HitTriangleVertexPositionsKHR must be used only if the value of HitKindKHR is HitKindFrontFacingTriangleKHR or HitKindBackFacingTriangleKHR

  • VUID-HitTriangleVertexPositionsKHR-None-08751
    The acceleration structure corresponding to the current intersection must have been built with VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_DATA_ACCESS_BIT_KHR

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification (NOTE: cannot determine Specification page containing this refpage).

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.