Fr0zkaandClaude Opus 5.5
c0c204ba50
VoxelHash::Cell/Pair, legacy Cellular3D and the shared Core cellular hash added 0x7FFFFFFF to a signed int32 before casting to uint32; overflow is undefined, so Clang and GCC placed cave passage 1 differently (first differing sample at LOD1 tile (0,64,-512)). The bias is now done in unsigned arithmetic, in both the standalone copy and the Unreal plugin header (Source/VoxelForge/Public/VoxelCaveMorphology.h). Native caves, motifs and lattice now stream LOD0-8 with skirts and cross-level transitions. New verify.py --speed-matrix runs every generator on one asserted-identical view (5 interleaved runs): motifs 1.33, profiles 1.30-1.32, caves 1.41, natural SW 1.67, lattice 1.70, FI 4.93 s whole view. fast/medium/full PASS, Clang/GCC peer hashes equal. Research R29 (open-edge ledge) and R30 (compiler-divergence suspects). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
VoxelForge verification
Build stamped Linux executables and run one of the three verification tiers from the repository root. Artifacts and logs go under Saved/Linux/l39 by default.
taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s env VOXELFORGE_BUILD_ROOT=Saved/Linux/l39/build VOXELFORGE_BIN_DIR=Saved/Linux/l39/bin Standalone/BuildLinux.sh --compiler=clang++-19 --variant=l39-clang --jobs=12
taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s env VOXELFORGE_BUILD_ROOT=Saved/Linux/l39/build VOXELFORGE_BIN_DIR=Saved/Linux/l39/bin Standalone/BuildLinux.sh --compiler=g++ --variant=l39-gcc --jobs=12
taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s python3 -B Standalone/Tools/verify/verify.py fast
taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s python3 -B Standalone/Tools/verify/verify.py medium
taskset -c 0-11 prlimit --as=6442450944 -- timeout 1740s python3 -B Standalone/Tools/verify/verify.py full
fast checks only canonical Standalone/data/owner_world.json, asserts FI Style 2 and SW Style 1 from resolved snapshots, runs passage wall/floor ripple and coverage gates, the adjacent-profile step limit, W1/W12 hash comparisons, and LOD0 ring profiles with the L30/L31 controls. It also exercises stale-source, style-mislabel, black-capture, historical ripple, and L38 step controls.
medium adds the Clang style-override matrix, transitions, route/proof audits, LOD0–8 rings, and canonical-owner captures, shape, near/overview crease, and fragment checks. Run medium before full. Full reuses that evidence only when the source stamp, verification-tool hashes, binaries, inputs, logs, and audit-script hashes still match; otherwise it reruns the Clang medium work. It adds the owner/style/transition/proof matrix with GCC, the 30-cell determinism matrix, and five interleaved L36/L39 cost pairs per recipe. The final captures stay in the L39 output directory.
BuildLinux.sh hashes a sorted manifest of Core inputs, standalone sources and generated wrappers, build files, and optionally the Unreal adapter when VOXELFORGE_INCLUDE_UNREAL_ADAPTER=1. The manifest hash is compiled into the headless and offscreen binaries and printed before any other runtime log line. Each tier probes every available built executable at startup and re-probes it at completion, rejecting stale stamps or binary changes. Summaries store tool hashes, binary and JSON SHA-256 values, resolved recipe/style/layout identity, commands, elapsed time, and audit-script hashes.
Each tier stops at its first failed gate. Every process is limited to CPUs 0–11 and 6 GiB of address space; individual build and audit processes time out at 30 minutes. Summary files are fast-summary.json, medium-summary.json, and full-summary.json.