passages: memoized exact MC midpoints + wider conservative sweep bounds (L101, exact vs L100)
Off-grid census by caller (MC midpoints, skirts, far shells); all 63.0M sweep misses accounted (1.9M exact-route fallbacks, 61.1M counted bound skips). Exact MC midpoint queries memoized by float bits (Unreal enables it too); feature bounds expanded. L100/L101 whole-view hashes equal in all four strata (v216 unchanged); 0 added/removed crossings; 15 capture pairs pixel-identical. Near-ready @W12 L100 -> L101: FI 1.77 -> 1.65, TN 1.66 -> 1.54, SW 0.85 -> 0.84, VS 1.03 -> 1.03 s (L98 2.28/2.23/1.02/1.11). Fast tier PASS; Linux UE host builds. Unreal arrival traces not obtained (the runner wrongly applied the 6 GiB address-space cap to Unreal). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
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#!/usr/bin/env python3
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"""Compare the direct passage evaluator with the bounded L101 swept tube."""
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from __future__ import annotations
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import json
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import re
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import subprocess
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import sys
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import time
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[4]
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OUT = ROOT / "Saved/Linux/l101/density-compare"
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DATA = ROOT / "Standalone/data/owner_world.json"
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HEADLESS = ROOT / "Saved/Linux/l101/bin/VoxelForgeCoreHeadless-l101-clang"
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CAMERAS = {
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"SW": (8.0, 16.0, -372.2626953125),
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"FI": (25.8369140625, 3.19921875, -737.0),
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"TN": (19.166015625, -14.2001953125, -753.3740234375),
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"VS": (-20.0625, -5.068359375, -900.353515625),
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}
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SUMMARY = re.compile(r"^\[L93PassageReachSummary\] reach_m=4\.00 (.*)$", re.M)
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COVERAGE = re.compile(r"^\[L93PassageReachCoverage\] (.*)$", re.M)
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TILE = re.compile(
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r"^\[L93PassageReachTile\] reach_m=4\.00 key=\(([-\d]+),([-\d]+),([-\d]+),lod(\d+)\) "
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r"samples=(\d+) changed=(\d+) sign_flips=(\d+) moved_edges=(\d+) "
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r"added_crossings=(\d+) removed_crossings=(\d+) "
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r"added_surface_triangles=(\d+) removed_surface_triangles=(\d+) "
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r"max_displacement_cm=([\deE+.-]+) max_displacement_xyz_vox=\(([^)]*)\) "
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r"displacement_region=(\d+) normal_vertices=(\d+) max_normal_degrees=([\deE+.-]+) "
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r"max_normal_xyz_vox=\(([^)]*)\) normal_region=(\d+) changed_mesh=(\d+)$", re.M)
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VOXEL_SIZE_M = 0.25
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def xyz(text: str) -> list[float]:
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return [float(part) for part in text.split(",")]
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def parse_locations(output: str, strate: str) -> tuple[list[dict], list[dict]]:
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rows = []
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for match in TILE.finditer(output):
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(x, y, z, lod, samples, changed, flips, moved, added, removed,
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added_triangles, removed_triangles, displacement, displacement_xyz,
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displacement_region, normal_vertices, angle, normal_xyz, normal_region,
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changed_mesh) = match.groups()
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disp_vox = xyz(displacement_xyz)
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normal_vox = xyz(normal_xyz)
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rows.append({
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"strate": strate, "tile": [int(x), int(y), int(z), int(lod)],
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"samples": int(samples), "changed_samples": int(changed),
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"sign_flips": int(flips), "moved_edges": int(moved),
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"surface_added_crossings": int(added),
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"surface_removed_crossings": int(removed),
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"surface_added_triangles": int(added_triangles),
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"surface_removed_triangles": int(removed_triangles),
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"max_displacement_cm": float(displacement),
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"displacement_location_voxels": disp_vox,
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"displacement_location_metres": [value * VOXEL_SIZE_M for value in disp_vox],
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"displacement_region": int(displacement_region),
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"normal_vertices": int(normal_vertices), "max_normal_degrees": float(angle),
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"normal_location_voxels": normal_vox,
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"normal_location_metres": [value * VOXEL_SIZE_M for value in normal_vox],
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"normal_region": int(normal_region), "changed_mesh": bool(int(changed_mesh)),
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})
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top_displacement = sorted(rows, key=lambda row: row["max_displacement_cm"], reverse=True)[:5]
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top_normals = sorted(rows, key=lambda row: row["max_normal_degrees"], reverse=True)[:5]
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return top_displacement, top_normals
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def top_unique(rows: list[dict], value_key: str, location_key: str) -> list[dict]:
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chosen, seen = [], set()
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for row in sorted(rows, key=lambda item: item[value_key], reverse=True):
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if row[value_key] <= 0.0:
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continue
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location = tuple(round(value, 4) for value in row[location_key])
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if location in seen:
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continue
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seen.add(location)
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chosen.append(row)
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if len(chosen) == 5:
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break
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return chosen
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def run(strate: str) -> dict:
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OUT.mkdir(parents=True, exist_ok=True)
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log = OUT / f"reach-{strate.lower()}.log"
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camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0"
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command = [
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"taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
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"timeout", "1740s", str(HEADLESS), str(DATA), "--world-assembler-prototype",
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"--stream-benchmark", "--stream-pipeline", "--workers=8", "--clip-radius=3",
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"--max-clip-level=8", "--max-level=8", f"--camera={camera}",
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"--audit-passage-carve-reach",
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]
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start = time.monotonic()
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with log.open("w", encoding="utf-8") as stream:
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result = subprocess.run(command, cwd=ROOT, stdout=stream,
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stderr=subprocess.STDOUT, check=False, timeout=1740)
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output = log.read_text(encoding="utf-8", errors="replace")
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summary_match, coverage_match = SUMMARY.search(output), COVERAGE.search(output)
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if summary_match is None or coverage_match is None or result.returncode in (-9, 124):
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raise RuntimeError(f"incomplete carve-reach audit: exit={result.returncode} {log}")
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reach = dict(re.findall(r"([a-zA-Z0-9_]+)=([^ ]+)", summary_match.group(1)))
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coverage = dict(re.findall(r"([a-zA-Z0-9_]+)=([^ ]+)", coverage_match.group(1)))
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top_displacement, top_normals = parse_locations(output, strate)
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row = {
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"strate": strate, "exit_code": result.returncode,
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"wall_s": round(time.monotonic() - start, 3), "coverage": coverage,
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"bounded_sweep_summary": reach,
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"bounded_sweep_tile_rows": len(TILE.findall(output)),
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"top_displacement_tiles": top_displacement,
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"top_normal_tiles": top_normals,
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"log": str(log.relative_to(ROOT)),
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}
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print("[L101DensityCompareRun] " + json.dumps(row, sort_keys=True), flush=True)
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return row
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def main() -> int:
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if not HEADLESS.is_file() or not DATA.is_file():
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raise SystemExit(f"missing input: {HEADLESS if not HEADLESS.is_file() else DATA}")
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if "--summarize-only" in sys.argv:
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rows = json.loads((OUT / "runs-partial.json").read_text(encoding="utf-8"))
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else:
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rows = []
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for strate in CAMERAS:
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rows.append(run(strate))
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(OUT / "runs-partial.json").write_text(json.dumps(rows, indent=2) + "\n",
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encoding="utf-8")
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all_displacements = [row for result in rows for row in result["top_displacement_tiles"]]
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all_normals = [row for result in rows for row in result["top_normal_tiles"]]
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top_displacement = top_unique(all_displacements, "max_displacement_cm",
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"displacement_location_metres")
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top_normals = top_unique(all_normals, "max_normal_degrees", "normal_location_metres")
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summary = {"runs": rows, "top_displacement_tiles": top_displacement,
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"top_normal_tiles": top_normals}
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(OUT / "summary.json").write_text(json.dumps(summary, indent=2) + "\n",
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encoding="utf-8")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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