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…ry/Raycore.jl into sd/gpu-instanced-bvh
…aycore.jl into sd/multitype-vec
…12) SetKey.type_idx was changed from UInt8 to UInt32 for LLVM/SPIR-V compatibility, but the @generated with_index function still compared against UInt8 literals. Since Julia's === checks both value and type, UInt32(1) === UInt8(1) is always false, causing all branches to fall through to the default (first material). This made every object render with the same material. Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
On Metal, device pointers (Core.LLVMPtr) stored inside GPU buffers cannot be reliably dereferenced by kernels. The inline data (root_aabb) reads correctly, but following embedded pointers to per-BLAS node/primitive arrays returns zeros. Replace the pointer-based BLAS architecture in StaticTLAS with: - BLASDescriptor: lightweight struct with nodes_offset, primitives_offset, root_aabb - Flat concatenated arrays (all_blas_nodes, all_blas_prims) built from per-BLAS GPU arrays - Offset-based indexing in closest_hit/any_hit traversal Management kernels (update_tlas_leaf_aabbs_kernel!, etc.) still use blas_array but only read root_aabb (inline, unaffected). Verified: CPU and Metal produce identical results (mean pixel ~0.327 on 3-sphere test scene). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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