image_bvh_intersect_ray GPU Native ISA AMD Vector

IMAGE BVH INTERSECT RAY Image / Texture Memory

image_bvh_intersect_ray

Test the intersection of rays with either box nodes or triangle nodes within a bounded volume hierarchy using 32 bit node pointers.

Encoding

Verified bit-level encoding data is not yet available for this instruction. The instruction-format classification below (MIMG) is well-documented and stable; exact per-target opcode/field bit positions have not yet been imported from a verified source.
Format MIMG
Execution Unit

Operands

Operand details have not yet been curated for this instruction.

GFX Target Compatibility

Per-target GFX compatibility has not yet been verified for this instruction.

Related

More in Image / Texture Memory

Reference

AMDGPU / GFX ISA

Description

Test the intersection of rays with either box nodes or triangle nodes within a bounded volume hierarchy using 32 bit node pointers. Store the results of the test into a vector register. This instruction does not take a sampler constant.

Example

image_bvh_intersect_ray v[5:8], v[1:11], s[8:11]

A real instruction accepted by the LLVM assembler, taken verbatim from LLVM's own AMDGPU MC test suite (gfx11). Not from an AMD document, and not authored here.

Sources