@pmndrs/bvh
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    Variable TOP_LEVEL_INSTANCE_ENTRY_WORDSConst

    TOP_LEVEL_INSTANCE_ENTRY_WORDS: 28

    Instance table entry: seven vec4 per instance slot. Rows 0-2 are object-to-world (xyz linear part, w translation), rows 3-5 world-to-object as the walk's record holds them, and row 6 is (meshSlot, instanceIndex, flags, live).