passages: two-pass swept-tube tunnels (owner design, L99, v215) - pending owner visual review

Route plan unchanged. Per tile, route segments whose bounded influence (tube + 4 m) touches the
tile write min-combined tube distance (base sweep); relief/floor/mouth shaping only in the shell
(detail sweep); 0.5 m edge blend into the strate field. Near-ready @W12: SW 1.01->0.80,
FI 2.23->1.43, TN 2.18->1.37, VS 1.09->0.98 s; whole view FI 3.38->2.37 s. All passage walk
audits pass (21,425/21,425 canonical, 3/3 interfaces); 24-run Clang/GCC W1/W8/W12 determinism;
0 sign flips. Change: mean 0.02 cm / 0.05 deg; max 25.9 cm (passage walls/roofs ~3.5 m from
route, LOD2) and 49.8 deg (rock walls 13-25 m from routes, LOD2). Captures with diffs in
Linux99/captures. Fast tier PASS (v215 pins).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1

Standalone/Research/WorldAssemblerM3/Linux99/RunL99Hashes.py

@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+"""Check whole-view tile hashes across W1/W8/W12 and Clang/GCC."""
+from __future__ import annotations
+
+import json
+import re
+import subprocess
+import time
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[4]
+OUT = ROOT / "Saved/Linux/l99/hashes"
+DATA = ROOT / "Standalone/data/owner_world.json"
+BINARIES = {
+    "Clang": ROOT / "Saved/Linux/l99/bin/VoxelForgeCoreHeadless-l99-clang",
+    "GCC": ROOT / "Saved/Linux/l99/bin/VoxelForgeCoreHeadless-l99-gcc",
+}
+CAMERAS = {
+    "SW": (8.0, 16.0, -372.2626953125),
+    "FI": (25.8369140625, 3.19921875, -737.0),
+    "TN": (19.166015625, -14.2001953125, -753.3740234375),
+    "VS": (-20.0625, -5.068359375, -900.353515625),
+}
+TILE_HASH = re.compile(
+    r"^\[PipelineTileHash\] lod=(-?\d+) x=(-?\d+) y=(-?\d+) z=(-?\d+) "
+    r"density=(0x[0-9a-f]+) mesh=(0x[0-9a-f]+) payload=(0x[0-9a-f]+) "
+    r"topology=(0x[0-9a-f]+)$", re.M)
+WHOLE_HASH = re.compile(
+    r"^\[PipelineWholeViewHash\] tiles=(\d+) density=(0x[0-9a-f]+) "
+    r"mesh=(0x[0-9a-f]+) payload=(0x[0-9a-f]+) topology=(0x[0-9a-f]+)$", re.M)
+FIELDS = ("density", "mesh", "payload", "topology")
+
+
+def run(strate: str, compiler: str, workers: int) -> dict:
+    OUT.mkdir(parents=True, exist_ok=True)
+    log = OUT / f"{strate.lower()}-{compiler.lower()}-w{workers}.log"
+    camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0"
+    command = [
+        "taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+        "timeout", "1740s", str(BINARIES[compiler]), str(DATA),
+        "--world-assembler-prototype", "--stream-benchmark", "--stream-pipeline",
+        f"--workers={workers}", "--clip-radius=3", "--max-clip-level=8",
+        "--max-level=8", f"--camera={camera}", "--stream-hash-tiles",
+    ]
+    start = time.monotonic()
+    with log.open("w", encoding="utf-8") as stream:
+        result = subprocess.run(command, cwd=ROOT, stdout=stream,
+                                stderr=subprocess.STDOUT, check=False, timeout=1740)
+    output = log.read_text(encoding="utf-8", errors="replace")
+    hashes = {
+        (int(m.group(1)), int(m.group(2)), int(m.group(3)), int(m.group(4))):
+        m.group(5, 6, 7, 8) for m in TILE_HASH.finditer(output)
+    }
+    whole = WHOLE_HASH.search(output)
+    stamp = re.search(r"^\[VoxelForgeSourceStamp\] sha256=([0-9a-f]{64})$", output, re.M)
+    if (result.returncode or whole is None or stamp is None
+            or len(hashes) != int(whole.group(1))):
+        raise RuntimeError(f"hash run failed or incomplete: exit={result.returncode} {log}")
+    row = {
+        "strate": strate, "compiler": compiler, "workers": workers,
+        "source_stamp": stamp.group(1), "exit_code": result.returncode,
+        "wall_s": round(time.monotonic() - start, 3), "tile_count": len(hashes),
+        "tiles_by_lod": {str(lod): sum(1 for key in hashes if key[0] == lod)
+                         for lod in sorted({key[0] for key in hashes})},
+        "whole_hash": list(whole.groups()), "tile_hashes": hashes,
+        "log": str(log.relative_to(ROOT)),
+    }
+    print("[L99HashRun] " + json.dumps(
+        {key: value for key, value in row.items() if key != "tile_hashes"},
+        sort_keys=True), flush=True)
+    return row
+
+
+def compare(strate: str, reference: dict, candidate: dict) -> dict:
+    keys = set(reference["tile_hashes"]) | set(candidate["tile_hashes"])
+    mismatches = {
+        field: sum(reference["tile_hashes"].get(key, (None,) * 4)[index]
+                   != candidate["tile_hashes"].get(key, (None,) * 4)[index]
+                   for key in keys)
+        for index, field in enumerate(FIELDS)
+    }
+    row = {
+        "strate": strate, "reference": f"{reference['compiler']}-w{reference['workers']}",
+        "candidate": f"{candidate['compiler']}-w{candidate['workers']}",
+        "tile_counts_match": reference["tile_count"] == candidate["tile_count"],
+        "whole_hashes_match": reference["whole_hash"] == candidate["whole_hash"],
+        "tile_hashes_match": all(value == 0 for value in mismatches.values())
+            and reference["tile_hashes"].keys() == candidate["tile_hashes"].keys(),
+        "component_mismatch_tiles": mismatches,
+        "tiles_reference": reference["tile_count"], "tiles_candidate": candidate["tile_count"],
+        "reference_whole_hash": reference["whole_hash"],
+        "candidate_whole_hash": candidate["whole_hash"],
+    }
+    print("[L99HashComparison] " + json.dumps(row, sort_keys=True), flush=True)
+    return row
+
+
+def main() -> int:
+    for binary in (*BINARIES.values(), DATA):
+        if not binary.is_file():
+            raise SystemExit(f"missing input: {binary}")
+    detail, comparisons = [], []
+    for strate in CAMERAS:
+        group = {(compiler, workers): run(strate, compiler, workers)
+                 for compiler in BINARIES for workers in (1, 8, 12)}
+        reference = group[("Clang", 1)]
+        for key, candidate in group.items():
+            if key == ("Clang", 1):
+                continue
+            comparisons.append(compare(strate, reference, candidate))
+        detail.extend({key: value for key, value in row.items() if key != "tile_hashes"}
+                      for row in group.values())
+        (OUT / "runs-partial.json").write_text(json.dumps(
+            {"runs": detail, "comparisons": comparisons}, indent=2) + "\n",
+            encoding="utf-8")
+    summary = {"runs": detail, "comparisons": comparisons}
+    (OUT / "summary.json").write_text(json.dumps(summary, indent=2) + "\n",
+                                      encoding="utf-8")
+    return 0 if all(row["tile_counts_match"] and row["whole_hashes_match"]
+                    and row["tile_hashes_match"] for row in comparisons) else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())