diff --git a/Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h b/Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h
index ac27df1..24aaf16 100644
--- a/Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h
+++ b/Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h
@@ -147,7 +147,9 @@ namespace VoxelForgeCore
         // by the opt-in passage composer profile, except the mesh composition itself.
         std::uint64_t passageSweepRouteSegmentCandidates = 0;
         std::uint64_t passageSweepSegmentSamplePairs = 0;
+        std::uint64_t passageSweepPrepareNanoseconds = 0;
         std::uint64_t passageSweepOutsideInfluencePairs = 0;
+        std::uint64_t passageSweepShellSupportSkips = 0;
         std::uint64_t passageSweepMinimumUpdates = 0;
         std::uint64_t passageSweepBaseInfluenceSamples = 0;
         std::uint64_t passageSweepDetailShellSamples = 0;
@@ -474,8 +476,9 @@ namespace VoxelForgeCore
     // Version 220 adaptively samples passage curves and rounds open-air wall crests.
     // Version 221 ranks passage segments before floor shaping and preserves their signed exterior distance.
     // Version 223 projects the floor onto one continuous arc-length profile and groups
-    // dense passage samples into coarse tile candidates.
-    inline constexpr std::uint32_t WorldAssemblyEvaluatorVersion = 223;
+    // dense passage samples into coarse tile candidates. Version 224 keeps the same
+    // continuous floor while relaxing the spline chord tolerance and bounding shell work.
+    inline constexpr std::uint32_t WorldAssemblyEvaluatorVersion = 224;
 
     enum class FieldChannel : std::uint32_t
     {
diff --git a/Standalone/Core/src/ShapeWorldInternal.h b/Standalone/Core/src/ShapeWorldInternal.h
index c266bd8..fa2b076 100644
--- a/Standalone/Core/src/ShapeWorldInternal.h
+++ b/Standalone/Core/src/ShapeWorldInternal.h
@@ -4605,7 +4605,7 @@ private:
         const double qPerMetre=Q*1000000.0/
             std::max<std::uint32_t>(1,ResolvedLayout->coreVoxelSizeMicrometres);
         constexpr double PassageSegmentSpacingMetres=8.0;
-        constexpr double PassageSegmentChordErrorMetres=0.025;
+        constexpr double PassageSegmentChordErrorMetres=0.100;
         std::size_t preparedSegments=0,controlSpans=0;
         for(std::size_t passageIndex=0;passageIndex<ResolvedLayout->passages.size();
             ++passageIndex)
@@ -11441,6 +11441,9 @@ inline void FStandaloneShapeWorld::FScopedPassageTileQueries::prepareSweptTubeBa
     constexpr double OpenAirSideWallHeightMetres=1.0;
     if(!shape_||step<=0||cells<=0||!std::isfinite(passageCarveReachMetres_)
         ||std::abs(passageCarveReachMetres_-InfluenceMetres)>1.0e-9)return;
+    const bool profile=profileStats_!=nullptr;
+    const auto prepareStart=profile?std::chrono::steady_clock::now()
+        :std::chrono::steady_clock::time_point{};
 
     auto sweep=std::make_shared<FPassageTileSweepData>();
     sweep->gridMinimumSubvoxels={
@@ -11463,7 +11466,6 @@ inline void FStandaloneShapeWorld::FScopedPassageTileQueries::prepareSweptTubeBa
     constexpr double MouthShellBlendMetres=5.0;
     const double wallReliefShell=0.41*qPerMetre;
     const double floorDetailShell=1.0*qPerMetre;
-    const bool profile=profileStats_!=nullptr;
     if(profile)
     {
         profileStats_->passageSweepRouteSegmentCandidates=routeSegmentCandidateCount_;
@@ -11550,8 +11552,6 @@ inline void FStandaloneShapeWorld::FScopedPassageTileQueries::prepareSweptTubeBa
                     FStandaloneShapeWorld::PassageFlatFloorCenterZSubvoxels(
                         constants,segments,segmentIndex,floorT,segment,
                         qx,qy,floorDepth,qPerMetre);
-                const double flatDistance=FStandaloneShapeWorld::PassageFlatBottomDistance(
-                    static_cast<float>(signedDistance),floorCenterZ,qz,floorDepth,qPerMetre);
                 if(profile)++profileStats_->passageSweepSegmentSamplePairs;
                 if(signedDistance>sweep->influenceSubvoxels)
                 {
@@ -11572,51 +11572,75 @@ inline void FStandaloneShapeWorld::FScopedPassageTileQueries::prepareSweptTubeBa
                     sample.floorSegmentIndex=static_cast<std::uint32_t>(
                         segmentIndex);
                 }
-                const double alongMetres=segment.authoredAlongMetres
-                    +t*segment.authoredLengthMetres;
-                const double mouthDistanceMetres=std::max(0.0,std::min(alongMetres,
-                    constants.totalPathLengthMetres-alongMetres));
-                const double shellFade=std::clamp(mouthDistanceMetres/
-                    MouthShellBlendMetres,0.0,1.0);
-                const double smoothShellFade=shellFade*shellFade
-                    *(3.0-2.0*shellFade);
-                const double floorDistanceMetres=(floorCenterZ-floorDepth-qz)/qPerMetre;
-                const double floorBlend=std::clamp(floorDistanceMetres/0.25,0.0,1.0);
-                const double smoothFloorBlend=floorBlend*floorBlend
-                    *(3.0-2.0*floorBlend);
-                const double wallElevationMetres=(qz-(floorCenterZ-floorDepth))
-                    /qPerMetre;
-                const double mouthWallThickness=segment.routeSegment
-                    ?smoothShellFade*shellThickness:0.0;
-                double floorExtensionFade=1.0;
-                if(!segment.routeSegment)
+                // A negative shell distance is possible only when the flattened tube
+                // distance lies in [0, shellThickness]. SmoothMaxDistance is at least
+                // max(roundDistance, floorDistance) and can raise that maximum by no
+                // more than cornerWidth/6. Skip its work for pairs outside this exact
+                // support, with a small subvoxel guard for float rounding. The final
+                // shell union only consumes negative distances.
+                constexpr double CornerBlendMetres=0.50;
+                const float roundDistanceFloat=static_cast<float>(signedDistance);
+                const float floorDistanceFloat=static_cast<float>(floorCenterZ-floorDepth-qz);
+                const double flatDistanceLowerBound=std::max(
+                    static_cast<double>(roundDistanceFloat),
+                    static_cast<double>(floorDistanceFloat));
+                const double cornerWidth=static_cast<double>(static_cast<float>(
+                    CornerBlendMetres*qPerMetre));
+                const bool shellSupportPossible=flatDistanceLowerBound
+                        >=-cornerWidth/6.0-1.0
+                    &&flatDistanceLowerBound<=shellThickness+1.0;
+                if(shellSupportPossible)
                 {
-                    const double pastMouthMetres=std::max(0.0,alongMetres
-                        -constants.totalPathLengthMetres);
-                    const double extensionFade=std::clamp(1.0
-                        -pastMouthMetres/MouthShellBlendMetres,0.0,1.0);
-                    floorExtensionFade=extensionFade*extensionFade
-                        *(3.0-2.0*extensionFade);
+                    const double flatDistance=FStandaloneShapeWorld::PassageFlatBottomDistance(
+                        roundDistanceFloat,floorCenterZ,qz,floorDepth,qPerMetre);
+                    const double alongMetres=segment.authoredAlongMetres
+                        +t*segment.authoredLengthMetres;
+                    const double mouthDistanceMetres=std::max(0.0,std::min(alongMetres,
+                        constants.totalPathLengthMetres-alongMetres));
+                    const double shellFade=std::clamp(mouthDistanceMetres/
+                        MouthShellBlendMetres,0.0,1.0);
+                    const double smoothShellFade=shellFade*shellFade
+                        *(3.0-2.0*shellFade);
+                    const double floorDistanceMetres=(floorCenterZ-floorDepth-qz)/qPerMetre;
+                    const double floorBlend=std::clamp(floorDistanceMetres/0.25,0.0,1.0);
+                    const double smoothFloorBlend=floorBlend*floorBlend
+                        *(3.0-2.0*floorBlend);
+                    const double wallElevationMetres=(qz-(floorCenterZ-floorDepth))
+                        /qPerMetre;
+                    const double mouthWallThickness=segment.routeSegment
+                        ?smoothShellFade*shellThickness:0.0;
+                    double floorExtensionFade=1.0;
+                    if(!segment.routeSegment)
+                    {
+                        const double pastMouthMetres=std::max(0.0,alongMetres
+                            -constants.totalPathLengthMetres);
+                        const double extensionFade=std::clamp(1.0
+                            -pastMouthMetres/MouthShellBlendMetres,0.0,1.0);
+                        floorExtensionFade=extensionFade*extensionFade
+                            *(3.0-2.0*extensionFade);
+                    }
+                    const double floorShellThickness=smoothFloorBlend*shellThickness
+                        *floorExtensionFade*smoothShellFade;
+                    const double wallShellDistance=
+                        FStandaloneShapeWorld::PassageRoundedWallShellDistance(
+                            flatDistance,wallElevationMetres*qPerMetre,
+                            OpenAirSideWallHeightMetres*qPerMetre,mouthWallThickness);
+                    const double floorShellDistance=std::max(
+                        -static_cast<double>(flatDistance),
+                        static_cast<double>(flatDistance)-floorShellThickness);
+                    const double localShellDistance=std::min(wallShellDistance,
+                        floorShellDistance);
+                    sample.shellSignedDistance=std::min(sample.shellSignedDistance,
+                        localShellDistance);
                 }
-                const double floorShellThickness=smoothFloorBlend*shellThickness
-                    *floorExtensionFade*smoothShellFade;
-                const double wallShellDistance=
-                    FStandaloneShapeWorld::PassageRoundedWallShellDistance(
-                        flatDistance,wallElevationMetres*qPerMetre,
-                        OpenAirSideWallHeightMetres*qPerMetre,mouthWallThickness);
-                const double floorShellDistance=std::max(-static_cast<double>(flatDistance),
-                    static_cast<double>(flatDistance)-floorShellThickness);
-                const double localShellDistance=std::min(wallShellDistance,
-                    floorShellDistance);
-                sample.shellSignedDistance=std::min(sample.shellSignedDistance,
-                    localShellDistance);
+                else if(profile)
+                    ++profileStats_->passageSweepShellSupportSkips;
                 // Rank the tube body by round SDF. Its floor plane is selected
                 // independently above from the nearest centerline position.
                 if(!sample.valid||signedDistance<sample.roundSignedDistance
                     ||(signedDistance==sample.roundSignedDistance
                         &&segmentIndex<sample.segmentIndex))
                 {
-                    sample.signedDistance=flatDistance;
                     sample.roundSignedDistance=signedDistance;
                     sample.centerZSubvoxels=cz;
                     sample.radiusSubvoxels=radius;
@@ -11686,6 +11710,9 @@ inline void FStandaloneShapeWorld::FScopedPassageTileQueries::prepareSweptTubeBa
         profileStats_->passageSweepNoInfluenceGridSamples=
             static_cast<std::uint64_t>(std::count(anyPassageInfluence.begin(),
                 anyPassageInfluence.end(),static_cast<std::uint8_t>(0)));
+        profileStats_->passageSweepPrepareNanoseconds+=static_cast<std::uint64_t>(
+            std::max<std::int64_t>(0,std::chrono::duration_cast<std::chrono::nanoseconds>(
+                std::chrono::steady_clock::now()-prepareStart).count()));
     }
     passageSweepData_=std::move(sweep);
 }
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/REPORT.md b/Standalone/Research/WorldAssemblerM3/Linux119/REPORT.md
new file mode 100644
index 0000000..249c740
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/REPORT.md
@@ -0,0 +1,43 @@
+# Linux119 — smooth half-pipe speed
+
+## Result
+
+The route now uses a 10 cm chord-error tolerance (was 2.5 cm); the 8 m spacing cap is unchanged. The evaluator is version 224. Output changed, but Clang/GCC and W1/W8/W12 hashes match.
+
+L119 improves on L115, but misses the L109 near-ready target in all eight stratum/worker cells: **13.3–22.0% slower than L109**. It is 2.8–7.7% faster than L115 at near-ready. Whole-view readiness remains 6.5–12.3% slower than L109.
+
+Five interleaved L80 measurements per cell followed one warmup per version. The timing gate recorded 1-minute load 0.82 and 98.7% CPU idle. Headless runs used CPUs 0–11, the 6 GiB address-space limit, and a 1,740 s timeout.
+
+| Stratum | Workers | Near L109 / L115 / L119 (s; Δ vs L109) | Whole view L109 / L115 / L119 (s; Δ vs L109) |
+| --- | ---: | ---: | ---: |
+| S0 | 8 | 0.761 / 0.929 / 0.880 (+15.6%) | 1.742 / 1.927 / 1.860 (+6.8%) |
+| S0 | 12 | 0.785 / 0.926 / 0.890 (+13.5%) | 1.717 / 1.873 / 1.829 (+6.5%) |
+| S1 | 8 | 0.951 / 1.250 / 1.158 (+21.9%) | 1.863 / 2.112 / 2.073 (+11.3%) |
+| S1 | 12 | 0.899 / 1.152 / 1.097 (+22.0%) | 1.731 / 2.000 / 1.943 (+12.3%) |
+| S2 | 8 | 0.994 / 1.252 / 1.177 (+18.4%) | 1.844 / 2.079 / 2.030 (+10.1%) |
+| S2 | 12 | 0.914 / 1.169 / 1.079 (+18.1%) | 1.710 / 1.989 / 1.885 (+10.2%) |
+| S3 | 8 | 0.812 / 0.988 / 0.960 (+18.3%) | 1.728 / 1.870 / 1.891 (+9.4%) |
+| S3 | 12 | 0.772 / 0.928 / 0.874 (+13.3%) | 1.617 / 1.783 / 1.723 (+6.6%) |
+
+## Designs and work
+
+Two designs were built together. Before building, the fourfold chord tolerance increase predicted about half as many curvature-limited route segments (segment count scales roughly with the inverse square root of the error tolerance). The shell support bound was expected to skip most shell calculations: only flattened distances in the 0–0.75 m shell band can contribute, with a 1-subvoxel guard. L118 had 48.93M W8 sweep pairs and 39.3M sampled smooth-min calls.
+
+| Stratum | W8 LOD0–2 pairs L109 / L115=L118 / L119 (M) | Exact fallbacks L109 / L115=L118 / L119 (M) | Segment visits L109 / L115=L118 / L119 (M) | Prepare ms L118 → L119 | L119 shell-support skips |
+| --- | ---: | ---: | ---: | ---: | ---: |
+| S0 | 3.36 / 7.56 / 4.55 | 0.241 / 0.413 / 0.652 | 1.19 / 3.41 / 4.68 | 467 → 185 | 3.73M (81.9%) |
+| S1 | 6.19 / 16.22 / 9.69 | 0.369 / 0.719 / 1.114 | 1.91 / 7.60 / 9.25 | 919 → 361 | 8.05M (83.1%) |
+| S2 | 6.15 / 15.52 / 9.28 | 0.315 / 0.634 / 0.986 | 1.66 / 6.88 / 8.34 | 848 → 345 | 7.69M (82.8%) |
+| S3 | 4.09 / 9.63 / 5.88 | 0.074 / 0.131 / 0.203 | 0.48 / 1.41 / 2.19 | 567 → 235 | 4.76M (80.8%) |
+
+L119 reduced pairs 39–40% versus L115/L118, and summed W1 prepare time fell 59.8% (2.801 s to 1.125 s). Exact fallbacks are 55–58% higher than L115/L118 and visits are 21–56% higher. Those extra fallback scans are the likely remaining readiness cost. L119 prepare time is timed directly; L109/L115 prepare time was not separately instrumented.
+
+## Quality and verification
+
+- Floor root offsets: 51 samples at each of 9 stations; maximum 7.884 mm versus L115’s 7.849 mm.
+- Fast tier: PASS in 277.9 s. Walkability, floor/mouth profiles, open-air shell, ripple, naturalness, and grade audits passed; no geometry threshold was relaxed.
+- Determinism: all 18 Clang/GCC W1/W8/W12 hash runs matched for owner4 surface world and both owner2 canonical recipes. Owner2 v224 baselines were added. Source stamp: `9a592cb548c6768c8c25723f4168f65da9645068cb67dcb317e91f707e7d41df`.
+- Captures: 23/23 L115 view names and camera poses rendered with the L119 binary; 19 pass and 4 low-contrast-visible. L115 had 18 pass and 5 low-contrast-visible. [Compare all views side by side](captures/COMPARE.html); [L119 capture index](captures/L119/INDEX.md).
+- Linux VFHostEditor: PASS, 27/27 actions in 70.98 s with `-NoUBA -MaxParallelActions=4`. Unreal ran without `prlimit`; three existing RealtimeMesh deprecation warnings remain.
+
+Logs and timing summaries are in `Saved/Linux/l119/`.
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/RunL119Captures.py b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119Captures.py
new file mode 100644
index 0000000..39f2c1a
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119Captures.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+"""Render the L115 view set with the L119 candidate binaries."""
+from __future__ import annotations
+
+import importlib.util
+import json
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[4]
+RESEARCH = Path(__file__).resolve().parent
+SPEC = importlib.util.spec_from_file_location(
+    "l115_capture_runner", ROOT / "Standalone/Research/WorldAssemblerM3/Linux115/RunL115Captures.py")
+if SPEC is None or SPEC.loader is None:
+    raise SystemExit("cannot load the L115 capture view definitions")
+RUNNER = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(RUNNER)
+
+# Reuse L115's exact camera and station definitions, while rendering through L119.
+RUNNER.CAPTURES = RESEARCH / "captures/L119"
+RUNNER.SAVED = ROOT / "Saved/Linux/l119/captures"
+RUNNER.HELPERS.RESEARCH = RESEARCH
+RUNNER.BINARIES = {
+    "L115": ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-clang"}
+RUNNER.RENDERERS = {
+    "L115": ROOT / "Saved/Linux/l119/bin/VoxelForgeOffscreenCapture-l119-clang"}
+RUNNER.HELPERS.BINARIES = RUNNER.BINARIES
+RUNNER.HELPERS.RENDERERS = RUNNER.RENDERERS
+
+
+def main() -> int:
+    result = RUNNER.main()
+    if result != 0:
+        return result
+    index = RUNNER.CAPTURES / "capture-index.json"
+    document = json.loads(index.read_text(encoding="utf-8"))
+    for row in document["captures"]:
+        row["variant"] = "L119"
+    index.write_text(json.dumps(document, indent=2) + "\n", encoding="utf-8")
+    markdown = RUNNER.CAPTURES / "INDEX.md"
+    lines = ["# L119 captures (L115 view set)", "",
+        "The 23 L115 camera poses were rendered with the L119 binary. Floor anchors "
+        "require an upward normal alignment of at least 0.85, target-to-floor distance "
+        "at most 0.25 m, and camera-to-floor distance between 2.0 and 3.2 m. Open-air "
+        "sections have outside and interior wall close-ups at 4 m.", ""]
+    for row in document["captures"]:
+        image = row["capture"].removeprefix("captures/L119/")
+        lines.append(f"- [{row['passage']} {row['station']}]({image}) — "
+            f"{row['kind']}; {row.get('drawn_triangles', 0)} triangles; "
+            f"{row['pixel_quality_status']}")
+    markdown.write_text("\n".join(lines) + "\n", encoding="utf-8")
+    return 0
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/RunL119DensityProbe.py b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119DensityProbe.py
new file mode 100644
index 0000000..923abde
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119DensityProbe.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+"""Measure L119 floor zero crossings at three route stations per passage."""
+from __future__ import annotations
+
+import csv
+import json
+import math
+import os
+import re
+import statistics
+import subprocess
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[4]
+OUT = ROOT / "Saved/Linux/l119/density-probe"
+BINARY = ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-clang"
+DATA = ROOT / "Standalone/data/owner_world.json"
+SLOPE = re.compile(
+    r"^\[L115DensitySlopeSample\] passage=(\S+) station=(\S+) s_m=([\d.]+) "
+    r".*?planned_floor_m=(-?[\d.]+) root_floor_m=(-?[\d.]+|nan) "
+    r"residual_m=(-?[\d.]+|nan)", re.M)
+
+
+def main() -> int:
+    OUT.mkdir(parents=True, exist_ok=True)
+    log = OUT / "owner4-clang.log"
+    layout = OUT / "layout.json"
+    command = [
+        "taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+        "timeout", "1740s", str(BINARY), str(DATA), "--world-assembler-prototype",
+        "--stream-benchmark", "--stream-pipeline", "--workers=12", "--clip-radius=3",
+        "--max-clip-level=8", "--max-level=8", "--camera=8,16,-372.2626953125,0,0",
+        "--audit-resolved-layout-passages", f"--resolved-layout-output={layout}",
+    ]
+    with log.open("w", encoding="utf-8") as stream:
+        result = subprocess.run(command, cwd=ROOT,
+                                env={**os.environ,
+                                     "VOXELFORGE_L115_DENSITY_PROFILE": "1"},
+                                stdout=stream, stderr=subprocess.STDOUT,
+                                check=False, timeout=1740)
+    if result.returncode:
+        raise SystemExit(f"L119 density probe failed: {log}")
+    text = log.read_text(encoding="utf-8", errors="replace")
+    groups: dict[tuple[str, str], list[dict]] = {}
+    for passage, station, distance, planned, root, residual in SLOPE.findall(text):
+        root_value = float(root) if root != "nan" else math.nan
+        residual_value = float(residual) if residual != "nan" else math.nan
+        groups.setdefault((passage, station), []).append({
+            "route_s_m": float(distance), "planned_floor_m": float(planned),
+            "root_floor_m": root_value, "offset_m": residual_value})
+    summary = []
+    with (OUT / "zero-crossing-offsets.csv").open("w", newline="", encoding="utf-8") as stream:
+        writer = csv.DictWriter(stream, fieldnames=("passage", "station", "route_s_m",
+            "planned_floor_m", "root_floor_m", "offset_m"))
+        writer.writeheader()
+        for (passage, station), samples in sorted(groups.items()):
+            for sample in samples:
+                writer.writerow({"passage": passage, "station": station, **sample})
+            finite = [sample["offset_m"] for sample in samples
+                      if math.isfinite(sample["offset_m"])]
+            summary.append({"passage": passage, "station": station,
+                "samples": len(samples), "finite_roots": len(finite),
+                "max_abs_offset_m": max(map(abs, finite)) if finite else None,
+                "median_abs_offset_m": statistics.median(map(abs, finite))
+                    if finite else None,
+                "p95_abs_offset_m": sorted(map(abs, finite))[
+                    min(len(finite)-1, math.ceil(0.95*len(finite))-1)]
+                    if finite else None})
+    if not summary or any(item["samples"] != 51 for item in summary):
+        raise RuntimeError("L119 density profile is missing 51-sample route stations")
+    (OUT / "zero-crossing-summary.json").write_text(
+        json.dumps(summary, indent=2) + "\n", encoding="utf-8")
+    print(f"[L119DensityProbe] exit={result.returncode} stations={len(summary)} "
+          f"log={log.relative_to(ROOT)}", flush=True)
+    return result.returncode
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/RunL119HashMatrix.py b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119HashMatrix.py
new file mode 100644
index 0000000..a2cf43b
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119HashMatrix.py
@@ -0,0 +1,101 @@
+#!/usr/bin/env python3
+"""Check owner hash identity at W1/W8/W12 and pin the v224 owner hashes."""
+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/l119/hashes"
+DATASETS = {
+    "owner4": ROOT / "Standalone/data/owner_world.json",
+    "owner2": ROOT / "Standalone/data/regression/owner_world_2strate_l61.json",
+}
+BINARIES = {
+    "clang": ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-clang",
+    "gcc": ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-gcc",
+}
+HASH = re.compile(r"^\[Pipeline(?:FullDetailHash|WholeViewHash|LODHash|ExactQueryHash)\].*$", re.M)
+STAMP = re.compile(r"^\[VoxelForgeSourceStamp\] sha256=(\S+)$", re.M)
+
+
+def run(dataset: str, recipe: str, workers: int, compiler: str) -> dict:
+    OUT.mkdir(parents=True, exist_ok=True)
+    label = f"{dataset}-{recipe}-w{workers}-{compiler}"
+    log = OUT / f"{label}.log"
+    layout = OUT / f"{label}.layout.json"
+    command = [
+        "taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+        "timeout", "1740s", str(BINARIES[compiler]), str(DATASETS[dataset]),
+        f"--workers={workers}", "--world-assembler-prototype", "--stream-benchmark",
+        "--stream-pipeline", "--force-generate", "--clip-radius=3",
+        "--max-clip-level=8", "--max-level=8", f"--recipe={recipe}",
+        "--stream-hash", f"--resolved-layout-output={layout}",
+    ]
+    started = 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 = HASH.findall(output)
+    if result.returncode or len(hashes) != 12:
+        raise SystemExit(f"hash run failed or incomplete: {label}; exit={result.returncode} "
+                         f"hashes={len(hashes)} log={log}")
+    row = {"dataset": dataset, "recipe": recipe, "workers": workers,
+           "compiler": compiler, "exit_code": result.returncode, "hashes": hashes,
+           "source_stamp": (STAMP.search(output).group(1)
+                            if STAMP.search(output) else None),
+           "elapsed_s": round(time.monotonic() - started, 3),
+           "log": str(log.relative_to(ROOT))}
+    print("[L119HashRun] " + json.dumps(row, sort_keys=True), flush=True)
+    return row
+
+
+def main() -> int:
+    if any(not path.is_file() for path in (*DATASETS.values(), *BINARIES.values())):
+        raise SystemExit("missing L119 hash input")
+    rows = []
+    recipes = {"owner4": ("surface-world",),
+               "owner2": ("surface-world", "floating-islands")}
+    for dataset, dataset_recipes in recipes.items():
+        for recipe in dataset_recipes:
+            for workers in (1, 8, 12):
+                for compiler in ("clang", "gcc"):
+                    rows.append(run(dataset, recipe, workers, compiler))
+                    (OUT / "runs-partial.json").write_text(
+                        json.dumps(rows, indent=2) + "\n", encoding="utf-8")
+    groups = {}
+    for dataset, dataset_recipes in recipes.items():
+        for recipe in dataset_recipes:
+            key = f"{dataset}/{recipe}"
+            group = [row for row in rows if row["dataset"] == dataset
+                     and row["recipe"] == recipe]
+            reference = group[0]["hashes"]
+            matches = all(row["hashes"] == reference for row in group)
+            groups[key] = {"all_worker_compiler_hashes_match": matches,
+                           "source_stamps": sorted({row["source_stamp"] for row in group}),
+                           "runs": [{"workers": row["workers"], "compiler": row["compiler"],
+                                     "log": row["log"]} for row in group]}
+            if not matches:
+                raise SystemExit(f"determinism mismatch: {key}")
+            if dataset == "owner2":
+                canonical = next(row for row in group if row["workers"] == 12
+                                 and row["compiler"] == "clang")
+                style = 1 if recipe == "surface-world" else 2
+                baseline = (ROOT / "Standalone/Tools/verify/baselines/owner-hash/canonical"
+                            / f"owner-hash-{recipe}-style{style}-v224.baseline")
+                baseline.write_text("\n".join(canonical["hashes"]) + "\n",
+                                    encoding="utf-8")
+    summary = {"runs": rows, "groups": groups,
+               "owner2_canonical_pins": ["owner2/surface-world",
+                                          "owner2/floating-islands"]}
+    (OUT / "summary.json").write_text(json.dumps(summary, indent=2) + "\n",
+                                      encoding="utf-8")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/RunL119PassageCounters.py b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119PassageCounters.py
new file mode 100644
index 0000000..872183b
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119PassageCounters.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+"""Collect two W8 passage-counter profiles per owner stratum."""
+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/l119/passage-counters"
+DATA = ROOT / "Standalone/data/owner_world.json"
+BINARY = ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-clang"
+CAMERAS = {
+    0: (8.0, 16.0, -372.2626953125),
+    1: (25.8369140625, 3.19921875, -737.0),
+    2: (19.166015625, -14.2001953125, -753.3740234375),
+    3: (-20.0625, -5.068359375, -900.353515625),
+}
+FIELDS = re.compile(r"([a-zA-Z0-9_]+)=([^ ]+)")
+
+
+def rows(path: Path, tag: str) -> dict[str, dict[str, str]]:
+    result = {}
+    for line in path.read_text(encoding="utf-8", errors="replace").splitlines():
+        if line.startswith(tag + " "):
+            field = dict(FIELDS.findall(line))
+            result[field["key"]] = field
+    return result
+
+
+def run(strate: int, replicate: int) -> dict:
+    OUT.mkdir(parents=True, exist_ok=True)
+    label = f"s{strate}-w8-profile{replicate}"
+    log = OUT / f"{label}.log"
+    camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0"
+    command = [
+        "taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+        "timeout", "1740s", str(BINARY), str(DATA),
+        "--world-assembler-prototype", "--stream-benchmark", "--stream-pipeline",
+        "--workers=8", "--clip-radius=3", "--max-clip-level=8", "--max-level=8",
+        f"--camera={camera}", "--profile-lod-work", "--profile-passage-composer",
+    ]
+    started = 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)
+    if result.returncode:
+        raise SystemExit(f"passage-counter profile failed: {log}; exit={result.returncode}")
+    composer, stages = rows(log, "[PassageComposerTile]"), rows(log, "[CpuTileStages]")
+    selected = []
+    for key, comp in composer.items():
+        lod = int(key.rsplit("lod", 1)[1].rstrip(")"))
+        if lod > 2 or int(comp["features"]) == 0:
+            continue
+        stage = stages.get(key)
+        if stage is None:
+            raise SystemExit(f"missing CpuTileStages record for {label} {key}")
+        fallbacks = [int(value) for value in stage["sweep_exact_fallback_by_caller"].split(",")]
+        selected.append({
+            "features": int(comp["features"]),
+            "sweep_pairs": int(comp["sweep_pairs"]),
+            "shell_support_skips": int(comp.get("sweep_shell_support_skips", "0")),
+            "exact_fallbacks": sum(fallbacks),
+            "segment_visits": int(comp["carve_segment_visits"]),
+        })
+    names = ("sweep_pairs", "shell_support_skips", "exact_fallbacks", "segment_visits")
+    totals = {name: sum(item[name] for item in selected) for name in names}
+    row = {"strate": strate, "workers": 8, "replicate": replicate,
+           "passage_tiles_lod02": len(selected), "totals": totals,
+           "elapsed_s": round(time.monotonic() - started, 3),
+           "log": str(log.relative_to(ROOT))}
+    print("[L119PassageCounters] " + json.dumps(row, sort_keys=True), flush=True)
+    return row
+
+
+def main() -> int:
+    if not DATA.is_file() or not BINARY.is_file():
+        raise SystemExit("missing L119 passage-counter input")
+    result = [run(strate, replicate) for strate in range(4) for replicate in (1, 2)]
+    summary = []
+    for strate in range(4):
+        group = [item for item in result if item["strate"] == strate]
+        summary.append({"strate": strate, "workers": 8, "replicates": len(group),
+                        "totals_mean": {
+                            name: sum(row["totals"][name] for row in group) / len(group)
+                            for name in group[0]["totals"]}})
+    (OUT / "summary.json").write_text(
+        json.dumps({"runs": result, "summary": summary}, indent=2) + "\n",
+        encoding="utf-8")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/RunL119TagProbe.py b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119TagProbe.py
new file mode 100644
index 0000000..b3cd73a
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119TagProbe.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""Collect W1 per-tile swept-tube preparation timings for each owner stratum."""
+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/l119/tag-probe"
+DATA = ROOT / "Standalone/data/owner_world.json"
+BINARY = ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-clang"
+CAMERAS = {
+    0: (8.0, 16.0, -372.2626953125),
+    1: (25.8369140625, 3.19921875, -737.0),
+    2: (19.166015625, -14.2001953125, -753.3740234375),
+    3: (-20.0625, -5.068359375, -900.353515625),
+}
+PASSAGE = re.compile(r"^\[PassageComposerTile\] (.*)$", re.M)
+FIELDS = re.compile(r"([a-zA-Z0-9_]+)=([^ ]+)")
+
+
+def run(strate: int) -> dict:
+    OUT.mkdir(parents=True, exist_ok=True)
+    label = f"s{strate}-w1-tags"
+    log = OUT / f"{label}.log"
+    camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0"
+    command = [
+        "taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
+        "timeout", "1740s", str(BINARY), str(DATA),
+        "--world-assembler-prototype", "--stream-benchmark", "--stream-pipeline",
+        "--workers=1", "--clip-radius=3", "--max-clip-level=8", "--max-level=8",
+        f"--camera={camera}", "--profile-lod-work", "--profile-passage-composer",
+    ]
+    started = 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)
+    content = log.read_text(encoding="utf-8", errors="replace")
+    passage = [dict(FIELDS.findall(match)) for match in PASSAGE.findall(content)]
+    if result.returncode or not passage:
+        raise SystemExit(f"prepare probe failed or emitted no passage counters: {log}; "
+                         f"exit={result.returncode}")
+    near = [row for row in passage
+        if int(row["key"].rsplit("lod", 1)[1].rstrip(")")) <= 2
+        and int(row["features"]) > 0]
+    totals = {
+        "passage_feature_tiles": len(near),
+        "sweep_prepare_ms": sum(float(row["sweep_prepare_ms"]) for row in near),
+        "sweep_pairs": sum(int(row["sweep_pairs"]) for row in near),
+        "shell_support_skips": sum(
+            int(row["sweep_shell_support_skips"]) for row in near),
+    }
+    row = {"strate": strate, "workers": 1, "elapsed_s": round(time.monotonic() - started, 3),
+           "near_lod02_feature_tiles": totals,
+           "log": str(log.relative_to(ROOT))}
+    print("[L119TagProbe] " + json.dumps(row, sort_keys=True), flush=True)
+    return row
+
+
+def main() -> int:
+    if not DATA.is_file() or not BINARY.is_file():
+        raise SystemExit("missing owner data or L119 Clang binary")
+    rows = [run(strate) for strate in range(4)]
+    (OUT / "summary.json").write_text(json.dumps(rows, indent=2) + "\n",
+                                      encoding="utf-8")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/RunL119Timing.py b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119Timing.py
new file mode 100644
index 0000000..0b54eac
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/RunL119Timing.py
@@ -0,0 +1,137 @@
+#!/usr/bin/env python3
+"""Five interleaved L80 readiness runs for L109, L115, and L119."""
+from __future__ import annotations
+
+import json
+import os
+import re
+import statistics
+import subprocess
+import time
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[4]
+OUT = ROOT / "Saved/Linux/l119/timing"
+DATA = ROOT / "Standalone/data/owner_world.json"
+BINARIES = {
+    "L109": ROOT / "Saved/Linux/l109/bin-final/VoxelForgeCoreHeadless-l109-clang",
+    "L115": ROOT / "Saved/Linux/l115/bin/VoxelForgeCoreHeadless-l115-clang",
+    "L119": ROOT / "Saved/Linux/l119/bin/VoxelForgeCoreHeadless-l119-clang",
+}
+CAMERAS = {
+    0: (8.0, 16.0, -372.2626953125),
+    1: (25.8369140625, 3.19921875, -737.0),
+    2: (19.166015625, -14.2001953125, -753.3740234375),
+    3: (-20.0625, -5.068359375, -900.353515625),
+}
+PIPELINE = re.compile(r"^\[StreamPipeline\] (.*)$", re.M)
+FIELDS = re.compile(r"([a-zA-Z0-9_]+)=([^ ]+)")
+NEAR = re.compile(
+    r"^\[WorldAssemblerNearLODReady\] lods=0-2 tiles=(\d+)/(\d+) cold_ready_s=([0-9.]+)$",
+    re.M,
+)
+
+
+def run(strate: int, workers: int, version: str, phase: str, replicate: int) -> dict:
+    OUT.mkdir(parents=True, exist_ok=True)
+    label = f"s{strate}-w{workers}-{version}-{phase}{replicate}"
+    log = OUT / f"{label}.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[version]), 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}", "--profile-lod-work", "--stream-scheduler-policy=3",
+    ]
+    started = time.monotonic()
+    with log.open("w", encoding="utf-8") as output:
+        result = subprocess.run(command, cwd=ROOT, stdout=output,
+                                stderr=subprocess.STDOUT, check=False, timeout=1740)
+    content = log.read_text(encoding="utf-8", errors="replace")
+    pipeline_match = PIPELINE.search(content)
+    near_match = NEAR.search(content)
+    if result.returncode or pipeline_match is None or near_match is None:
+        raise SystemExit(f"readiness run failed or trace missing: {log}; exit={result.returncode}")
+    pipeline = dict(FIELDS.findall(pipeline_match.group(1)))
+    row = {"strate": strate, "workers": workers, "version": version,
+           "phase": phase, "replicate": replicate, "exit_code": result.returncode,
+           "wall_s": round(time.monotonic() - started, 3),
+           "lod02_ready_s": float(near_match.group(3)),
+           "whole_view_ready_s": float(pipeline["whole_view_ready"].removesuffix("s")),
+           "whole_tiles": int(pipeline["whole_tiles"].split("/")[0]),
+           "log": str(log.relative_to(ROOT))}
+    print("[L119TimingRun] " + json.dumps(row, sort_keys=True), flush=True)
+    return row
+
+
+def cpu_idle_percent(interval_s: float = 2.0) -> float:
+    def totals() -> tuple[int, int]:
+        fields = Path("/proc/stat").read_text(encoding="utf-8").splitlines()[0].split()
+        values = [int(value) for value in fields[1:]]
+        return sum(values), values[3] + (values[4] if len(values) > 4 else 0)
+    total_before, idle_before = totals()
+    time.sleep(interval_s)
+    total_after, idle_after = totals()
+    total_delta = max(1, total_after - total_before)
+    return 100.0 * (idle_after - idle_before) / total_delta
+
+
+def main() -> int:
+    if not DATA.is_file() or any(not binary.is_file() for binary in BINARIES.values()):
+        raise SystemExit("missing L109/L115/L119 timing input")
+    OUT.mkdir(parents=True, exist_ok=True)
+    load_1m = os.getloadavg()[0]
+    idle_pct = cpu_idle_percent()
+    uptime = subprocess.run(["uptime"], cwd=ROOT, text=True,
+                            capture_output=True, check=True).stdout.strip()
+    top = subprocess.run(["ps", "-eo", "pid,pcpu,comm", "--sort=-pcpu"], cwd=ROOT,
+                         text=True, capture_output=True, check=True).stdout
+    (OUT / "machine-load-before.txt").write_text(
+        f"uptime: {uptime}\n1-minute load: {load_1m:.2f}\n"
+        f"2-second CPU idle: {idle_pct:.1f}%\ntop CPU users:\n{top}",
+        encoding="utf-8")
+    print(f"[L119TimingGate] load_1m={load_1m:.2f} cpu_idle_2s={idle_pct:.1f}% "
+          f"uptime={uptime}", flush=True)
+    if load_1m >= 0.9 or idle_pct < 97.0:
+        raise SystemExit("timing refused: machine is above the quiet-load gate")
+    rows = []
+    versions = ("L109", "L115", "L119")
+    for strate in range(4):
+        for workers in (8, 12):
+            for version in versions:
+                run(strate, workers, version, "warmup", 0)
+            for replicate in range(1, 6):
+                offset = (replicate - 1) % len(versions)
+                order = versions[offset:] + versions[:offset]
+                for version in order:
+                    rows.append(run(strate, workers, version, "measured", replicate))
+                    (OUT / "runs-partial.json").write_text(
+                        json.dumps(rows, indent=2) + "\n", encoding="utf-8")
+    summary = []
+    for strate in range(4):
+        for workers in (8, 12):
+            item = {"strate": strate, "workers": workers, "replicates": 5}
+            medians = {}
+            for version in versions:
+                group = [row for row in rows if row["strate"] == strate
+                         and row["workers"] == workers and row["version"] == version]
+                medians[version] = {}
+                for key in ("lod02_ready_s", "whole_view_ready_s"):
+                    values = [row[key] for row in group]
+                    medians[version][key] = statistics.median(values)
+                    item[f"{version}_{key}_values"] = values
+                    item[f"{version}_{key}_median"] = medians[version][key]
+            for comparison in ("L109", "L115"):
+                for key in ("lod02_ready_s", "whole_view_ready_s"):
+                    item[f"L119_vs_{comparison}_{key}_delta_pct"] = round(
+                        100.0 * (medians["L119"][key] / medians[comparison][key] - 1.0), 2)
+            summary.append(item)
+    (OUT / "summary.json").write_text(
+        json.dumps({"runs": rows, "summary": summary}, indent=2) + "\n",
+        encoding="utf-8")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/captures/COMPARE.html b/Standalone/Research/WorldAssemblerM3/Linux119/captures/COMPARE.html
new file mode 100644
index 0000000..a1ace2f
--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/captures/COMPARE.html
@@ -0,0 +1,30 @@
+<!doctype html>
+<html lang="en"><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
+<title>L115 / L119 tunnel capture comparison</title>
+<style>body{font:16px system-ui,sans-serif;max-width:1400px;margin:2rem auto;padding:0 1rem;color:#202124}h1{margin-bottom:.25rem}article{border-top:1px solid #bbb;padding:1rem 0 1.5rem}.pair{display:grid;grid-template-columns:1fr 1fr;gap:1rem}figure{margin:0}figcaption{font-weight:650;margin:.25rem 0}img{width:100%;height:auto;display:block;background:#eee}p{margin:.25rem 0 .75rem;color:#555}@media(max-width:700px){.pair{grid-template-columns:1fr}}</style>
+<h1>L115 and L119 tunnel captures</h1>
+<p>The same 23 view names and camera poses are paired side by side. Select an image to open it full size.</p>
+<article><h2>passage/0-1/0 · rock-floor/401.7m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-rock-floor-station-1.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-rock-floor-station-1.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-rock-floor-station-1.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-rock-floor-station-1.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · rock-floor/792.8m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-rock-floor-station-2.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-rock-floor-station-2.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-rock-floor-station-2.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-rock-floor-station-2.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · rock-floor/1634.5m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-rock-floor-station-3.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-rock-floor-station-3.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-rock-floor-station-3.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-rock-floor-station-3.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · rock-floor/27.0m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-rock-floor-station-1.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-rock-floor-station-1.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-rock-floor-station-1.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-rock-floor-station-1.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · rock-floor/52.9m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-rock-floor-station-2.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-rock-floor-station-2.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-rock-floor-station-2.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-rock-floor-station-2.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · rock-floor/78.9m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-rock-floor-station-3.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-rock-floor-station-3.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-rock-floor-station-3.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-rock-floor-station-3.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · rock-floor/323.4m · rock-floor-close</h2><p>Status: low_contrast_geometry_visible</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-rock-floor-station-1.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-rock-floor-station-1.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-rock-floor-station-1.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-rock-floor-station-1.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · rock-floor/333.4m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-rock-floor-station-2.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-rock-floor-station-2.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-rock-floor-station-2.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-rock-floor-station-2.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · rock-floor/343.4m · rock-floor-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-rock-floor-station-3.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-rock-floor-station-3.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-rock-floor-station-3.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-rock-floor-station-3.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · section-1/4m-outside · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-openair-1-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-openair-1-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-openair-1-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-openair-1-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · section-1/4m-interior-wall · open-air-close</h2><p>Status: low_contrast_geometry_visible</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-openair-1-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-openair-1-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-openair-1-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-openair-1-4m-interior-wall.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · section-2/4m-outside · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-openair-2-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-openair-2-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-openair-2-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-openair-2-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · section-2/4m-interior-wall · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-openair-2-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-openair-2-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-openair-2-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-openair-2-4m-interior-wall.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · section-3/4m-outside · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-openair-3-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-openair-3-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-openair-3-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-openair-3-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/0-1/0 · section-3/4m-interior-wall · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-0-1-0-openair-3-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-0-1-0-openair-3-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-0-1-0-openair-3-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-0-1-0-openair-3-4m-interior-wall.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · section-1/4m-outside · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-openair-1-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-openair-1-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-openair-1-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-openair-1-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · section-1/4m-interior-wall · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-openair-1-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-openair-1-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-openair-1-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-openair-1-4m-interior-wall.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · section-2/4m-outside · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-openair-2-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-openair-2-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-openair-2-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-openair-2-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/1-2/0 · section-2/4m-interior-wall · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-1-2-0-openair-2-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-1-2-0-openair-2-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-1-2-0-openair-2-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-1-2-0-openair-2-4m-interior-wall.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · section-1/4m-outside · open-air-close</h2><p>Status: low_contrast_geometry_visible</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-openair-1-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-openair-1-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-openair-1-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-openair-1-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · section-1/4m-interior-wall · open-air-close</h2><p>Status: low_contrast_geometry_visible</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-openair-1-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-openair-1-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-openair-1-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-openair-1-4m-interior-wall.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · section-2/4m-outside · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-openair-2-4m-outside.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-openair-2-4m-outside.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-openair-2-4m-outside.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-openair-2-4m-outside.png"></a></figure></div></article>
+<article><h2>passage/2-3/0 · section-2/4m-interior-wall · open-air-close</h2><p>Status: pass</p><div class="pair"><figure><figcaption>L115</figcaption><a href="../../Linux115/captures/L115/L115/passage-2-3-0-openair-2-4m-interior-wall.png"><img loading="lazy" src="../../Linux115/captures/L115/L115/passage-2-3-0-openair-2-4m-interior-wall.png"></a></figure><figure><figcaption>L119</figcaption><a href="L119/L115/L115/passage-2-3-0-openair-2-4m-interior-wall.png"><img loading="lazy" src="L119/L115/L115/passage-2-3-0-openair-2-4m-interior-wall.png"></a></figure></div></article>
+</html>
diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/captures/L119/INDEX.md b/Standalone/Research/WorldAssemblerM3/Linux119/captures/L119/INDEX.md
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+# L119 captures (L115 view set)
+
+The 23 L115 camera poses were rendered with the L119 binary. Floor anchors require an upward normal alignment of at least 0.85, target-to-floor distance at most 0.25 m, and camera-to-floor distance between 2.0 and 3.2 m. Open-air sections have outside and interior wall close-ups at 4 m.
+
+- [passage/0-1/0 rock-floor/401.7m](L115/L115/passage-0-1-0-rock-floor-station-1.png) — rock-floor-close; 122294 triangles; pass
+- [passage/0-1/0 rock-floor/792.8m](L115/L115/passage-0-1-0-rock-floor-station-2.png) — rock-floor-close; 586092 triangles; pass
+- [passage/0-1/0 rock-floor/1634.5m](L115/L115/passage-0-1-0-rock-floor-station-3.png) — rock-floor-close; 137288 triangles; pass
+- [passage/1-2/0 rock-floor/27.0m](L115/L115/passage-1-2-0-rock-floor-station-1.png) — rock-floor-close; 652056 triangles; pass
+- [passage/1-2/0 rock-floor/52.9m](L115/L115/passage-1-2-0-rock-floor-station-2.png) — rock-floor-close; 636162 triangles; pass
+- [passage/1-2/0 rock-floor/78.9m](L115/L115/passage-1-2-0-rock-floor-station-3.png) — rock-floor-close; 580472 triangles; pass
+- [passage/2-3/0 rock-floor/323.4m](L115/L115/passage-2-3-0-rock-floor-station-1.png) — rock-floor-close; 474964 triangles; low_contrast_geometry_visible
+- [passage/2-3/0 rock-floor/333.4m](L115/L115/passage-2-3-0-rock-floor-station-2.png) — rock-floor-close; 494504 triangles; pass
+- [passage/2-3/0 rock-floor/343.4m](L115/L115/passage-2-3-0-rock-floor-station-3.png) — rock-floor-close; 485356 triangles; pass
+- [passage/0-1/0 section-1/4m-outside](L115/L115/passage-0-1-0-openair-1-4m-outside.png) — open-air-close; 275333 triangles; pass
+- [passage/0-1/0 section-1/4m-interior-wall](L115/L115/passage-0-1-0-openair-1-4m-interior-wall.png) — open-air-close; 308012 triangles; low_contrast_geometry_visible
+- [passage/0-1/0 section-2/4m-outside](L115/L115/passage-0-1-0-openair-2-4m-outside.png) — open-air-close; 275333 triangles; pass
+- [passage/0-1/0 section-2/4m-interior-wall](L115/L115/passage-0-1-0-openair-2-4m-interior-wall.png) — open-air-close; 345026 triangles; pass
+- [passage/0-1/0 section-3/4m-outside](L115/L115/passage-0-1-0-openair-3-4m-outside.png) — open-air-close; 149234 triangles; pass
+- [passage/0-1/0 section-3/4m-interior-wall](L115/L115/passage-0-1-0-openair-3-4m-interior-wall.png) — open-air-close; 148100 triangles; pass
+- [passage/1-2/0 section-1/4m-outside](L115/L115/passage-1-2-0-openair-1-4m-outside.png) — open-air-close; 620814 triangles; pass
+- [passage/1-2/0 section-1/4m-interior-wall](L115/L115/passage-1-2-0-openair-1-4m-interior-wall.png) — open-air-close; 609757 triangles; pass
+- [passage/1-2/0 section-2/4m-outside](L115/L115/passage-1-2-0-openair-2-4m-outside.png) — open-air-close; 584542 triangles; pass
+- [passage/1-2/0 section-2/4m-interior-wall](L115/L115/passage-1-2-0-openair-2-4m-interior-wall.png) — open-air-close; 572258 triangles; pass
+- [passage/2-3/0 section-1/4m-outside](L115/L115/passage-2-3-0-openair-1-4m-outside.png) — open-air-close; 104612 triangles; low_contrast_geometry_visible
+- [passage/2-3/0 section-1/4m-interior-wall](L115/L115/passage-2-3-0-openair-1-4m-interior-wall.png) — open-air-close; 94962 triangles; low_contrast_geometry_visible
+- [passage/2-3/0 section-2/4m-outside](L115/L115/passage-2-3-0-openair-2-4m-outside.png) — open-air-close; 475860 triangles; pass
+- [passage/2-3/0 section-2/4m-interior-wall](L115/L115/passage-2-3-0-openair-2-4m-interior-wall.png) — open-air-close; 486480 triangles; pass
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diff --git a/Standalone/Research/WorldAssemblerM3/Linux119/captures/L119/L115/L115/passage-0-1-0-rock-floor-station-1.png b/Standalone/Research/WorldAssemblerM3/Linux119/captures/L119/L115/L115/passage-0-1-0-rock-floor-station-1.png
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--- /dev/null
+++ b/Standalone/Research/WorldAssemblerM3/Linux119/captures/L119/capture-index.json
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+      "closeup_side": "interior-wall",
+      "closeup_preferred_normal": [
+        -0.5134225175004958,
+        -0.8581359557339694,
+        -0.0
+      ],
+      "camera_target_distance_m": 4.000000000000005,
+      "route_distance_m": 16.616500000000002,
+      "requested_route_distance_m": 16.616500000000002,
+      "route_length_m": 494.0722798830563,
+      "variant": "L119",
+      "capture": "captures/L119/L115/L115/passage-2-3-0-openair-1-4m-interior-wall.png",
+      "scene": "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-1-4m-interior-wall.vfmesh",
+      "drawn_triangles": 94962,
+      "source_triangles": 118028,
+      "verified": true,
+      "pixel_quality_status": "low_contrast_geometry_visible",
+      "route_distance_actual_m": 16.616500000000002,
+      "route_station_adjustment_m": 0.0,
+      "closeup_camera_target_distance_m": 4.0,
+      "closeup_target_surface_distance_m": 0.41920390486225767,
+      "closeup_predicted_target_offset_m": 0.41920390486225767,
+      "closeup_wall_normal_alignment": 0.740744136337711,
+      "fallback_kind": null,
+      "fallback_surface_distance_m": null,
+      "camera_actual_m": [
+        -7.998432705401559,
+        -11.833936581758076,
+        -818.2481168532394
+      ],
+      "target_actual_m": [
+        -5.94757062165508,
+        -9.608161331921629,
+        -815.6327986602337
+      ],
+      "logs": [
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-1-4m-interior-wall-mesh.log",
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-1-4m-interior-wall-render.log",
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-1-4m-interior-wall-quality.log"
+      ]
+    },
+    {
+      "name": "passage-2-3-0-openair-2-4m-outside",
+      "passage": "passage/2-3/0",
+      "kind": "open-air-close",
+      "station": "section-2/4m-outside",
+      "camera": [
+        -4.5562890668466025,
+        4.648574813628143,
+        -879.7479999999999
+      ],
+      "target": [
+        -7.40869531436283,
+        7.452817777269203,
+        -879.7479999999999
+      ],
+      "yaw": -45.487830534998494,
+      "pitch": 0.0,
+      "focus": [
+        -9.548,
+        9.556,
+        -877.478
+      ],
+      "center_z": -877.478,
+      "open_air_section": 2,
+      "closeup_side": "outside",
+      "closeup_preferred_normal": [
+        0.7131015618790567,
+        -0.7010607409102652,
+        0.0
+      ],
+      "camera_target_distance_m": 4.000000000000001,
+      "route_distance_m": 374.929,
+      "requested_route_distance_m": 374.929,
+      "route_length_m": 494.0722798830563,
+      "variant": "L119",
+      "capture": "captures/L119/L115/L115/passage-2-3-0-openair-2-4m-outside.png",
+      "scene": "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-outside.vfmesh",
+      "drawn_triangles": 475860,
+      "source_triangles": 504244,
+      "verified": true,
+      "pixel_quality_status": "pass",
+      "route_distance_actual_m": 374.929,
+      "route_station_adjustment_m": 0.0,
+      "closeup_camera_target_distance_m": 4.0,
+      "closeup_target_surface_distance_m": 1.7280841589725482,
+      "closeup_predicted_target_offset_m": 1.7280841589725482,
+      "closeup_wall_normal_alignment": 0.6707889779439669,
+      "fallback_kind": null,
+      "fallback_surface_distance_m": null,
+      "camera_actual_m": [
+        -7.47193274788199,
+        5.182168353356822,
+        -879.6783722112204
+      ],
+      "target_actual_m": [
+        -7.306445568768645,
+        9.17777802625833,
+        -879.7662205769708
+      ],
+      "logs": [
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-outside-mesh.log",
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-outside-render.log",
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-outside-quality.log"
+      ]
+    },
+    {
+      "name": "passage-2-3-0-openair-2-4m-interior-wall",
+      "passage": "passage/2-3/0",
+      "kind": "open-air-close",
+      "station": "section-2/4m-interior-wall",
+      "camera": [
+        -11.533986119377625,
+        6.164550123765492,
+        -880.4395357921604
+      ],
+      "target": [
+        -8.149320771422074,
+        8.180937668487475,
+        -879.7479999999999
+      ],
+      "yaw": 59.215963829172296,
+      "pitch": 9.955540417812847,
+      "focus": [
+        -9.548,
+        9.556,
+        -877.478
+      ],
+      "center_z": -877.478,
+      "open_air_section": 2,
+      "closeup_side": "interior-wall",
+      "closeup_preferred_normal": [
+        -0.7131015618790567,
+        0.7010607409102652,
+        -0.0
+      ],
+      "camera_target_distance_m": 4.000000000000007,
+      "route_distance_m": 374.929,
+      "requested_route_distance_m": 374.929,
+      "route_length_m": 494.0722798830563,
+      "variant": "L119",
+      "capture": "captures/L119/L115/L115/passage-2-3-0-openair-2-4m-interior-wall.png",
+      "scene": "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-interior-wall.vfmesh",
+      "drawn_triangles": 486480,
+      "source_triangles": 513552,
+      "verified": true,
+      "pixel_quality_status": "pass",
+      "route_distance_actual_m": 374.929,
+      "route_station_adjustment_m": 0.0,
+      "closeup_camera_target_distance_m": 4.0,
+      "closeup_target_surface_distance_m": 1.0286227628002445,
+      "closeup_predicted_target_offset_m": 1.0286227628002445,
+      "closeup_wall_normal_alignment": 0.720019406420326,
+      "fallback_kind": null,
+      "fallback_surface_distance_m": null,
+      "camera_actual_m": [
+        -8.257109087497915,
+        13.208090205453457,
+        -879.7612149430302
+      ],
+      "target_actual_m": [
+        -8.149320771422074,
+        9.209558486938477,
+        -879.75
+      ],
+      "logs": [
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-interior-wall-mesh.log",
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-interior-wall-render.log",
+        "Saved/Linux/l119/captures/L115/L115/passage-2-3-0-openair-2-4m-interior-wall-quality.log"
+      ]
+    }
+  ]
+}
diff --git a/Standalone/Source/StreamBenchmarkPipeline.h b/Standalone/Source/StreamBenchmarkPipeline.h
index 033b169..bf33342 100644
--- a/Standalone/Source/StreamBenchmarkPipeline.h
+++ b/Standalone/Source/StreamBenchmarkPipeline.h
@@ -3035,7 +3035,7 @@ namespace StandaloneStreamBenchmark
                 const auto controls=passageSplineControls(passage);
                 const auto floorProfile=passageSplineFloorProfile(passage);
                 const auto segments=VoxelForgeCore::PassageSpline::BuildSegments(
-                    controls,routeEnd,8.0,1.0,floorProfile,0.025);
+                    controls,routeEnd,8.0,1.0,floorProfile,0.100);
                 const auto consider=[&](double distance,double radius)
                 {
                     minimumRadius=std::min(minimumRadius,radius);
@@ -3070,7 +3070,7 @@ namespace StandaloneStreamBenchmark
                 const auto controls=passageSplineControls(passage);
                 const auto floorProfile=passageSplineFloorProfile(passage);
                 const auto segments=VoxelForgeCore::PassageSpline::BuildSegments(
-                    controls,routeEnd,8.0,1.0,floorProfile,0.025);
+                    controls,routeEnd,8.0,1.0,floorProfile,0.100);
                 const auto effectiveCenterZ=[&](const auto& point,double plannedFloor)
                 {
                     return plannedFloor+passageTubeDepthAt(point[3],bodyDepth);
@@ -3125,7 +3125,7 @@ namespace StandaloneStreamBenchmark
                     const std::size_t routeEnd=std::clamp<std::size_t>(
                         passage.lowerMouthControlIndex,1,passage.controlPoints.size()-1);
                     const auto segments=VoxelForgeCore::PassageSpline::BuildSegments(
-                        controls,routeEnd,8.0,1.0,floorProfile,0.025);
+                        controls,routeEnd,8.0,1.0,floorProfile,0.100);
                     if(!segments.empty())
                     {
                         blend.mouthX=segments.front().a[0];
@@ -3605,7 +3605,45 @@ namespace StandaloneStreamBenchmark
                             }
                             else ++audit.missingFloorSamples;
                         }
-                        if(i%4!=0)continue;
+                    }
+                }
+                // Keep wall probe density tied to route distance, not to the number
+                // of adaptive spline segments. A coarser chord tolerance may leave
+                // long segments around a mouth; fixed stations still exercise the
+                // same wall geometry without weakening the coverage requirement.
+                for(std::size_t endpoint=0;endpoint<2;++endpoint)
+                {
+                    for(double localDistance=0.0;
+                        localDistance<=PassageMouthProfileReachMetres+1.0e-9;
+                        localDistance+=1.0)
+                    {
+                        const double routeDistance=endpoint==0?localDistance
+                            :lowerMouthDistance-localDistance;
+                        if(routeDistance<0.0||routeDistance>lowerMouthDistance)continue;
+                        const auto upper=std::lower_bound(path.begin(),path.end(),routeDistance,
+                            [](const FProfilePose& pose,double value)
+                            {return pose.distance<value;});
+                        const auto b=upper==path.end()?path.end()-1:upper;
+                        const auto a=b==path.begin()?b:b-1;
+                        const double span=b->distance-a->distance;
+                        const double t=span>1.0e-12
+                            ?std::clamp((routeDistance-a->distance)/span,0.0,1.0):0.0;
+                        const double dx=b->x-a->x,dy=b->y-a->y;
+                        const double tangentLength=std::hypot(dx,dy);
+                        if(tangentLength<=1.0e-6)
+                        {
+                            audit.missingWallSamples+=2;
+                            continue;
+                        }
+                        const double nx=-dy/tangentLength,ny=dx/tangentLength;
+                        FProfilePose pose;
+                        pose.distance=routeDistance;
+                        pose.x=std::lerp(a->x,b->x,t);
+                        pose.y=std::lerp(a->y,b->y,t);
+                        pose.z=std::lerp(a->z,b->z,t);
+                        pose.floorZ=std::lerp(a->floorZ,b->floorZ,t);
+                        pose.radius=std::lerp(a->radius,b->radius,t);
+                        pose.segmentIndex=t<0.5?a->segmentIndex:b->segmentIndex;
                         for(std::size_t side=0;side<2;++side)
                         {
                             const double sign=side==0?-1.0:1.0;
@@ -3613,10 +3651,12 @@ namespace StandaloneStreamBenchmark
                             // above its floor. Probe at mid-wall height so this check
                             // measures those walls instead of the absent roof-height
                             // shell at the centreline.
-                            const double radius=findWallRadius(pose,sign*nx,sign*ny,0.50);
+                            const double radius=findWallRadius(
+                                pose,sign*nx,sign*ny,0.50);
                             if(std::isfinite(radius))
                             {
-                                wallProfiles[endpoint][side].push_back({localDistance,radius});
+                                wallProfiles[endpoint][side].push_back(
+                                    {localDistance,radius});
                                 ++audit.wallSamples;
                             }
                             else ++audit.missingWallSamples;
diff --git a/Standalone/Source/StreamingWorld.h b/Standalone/Source/StreamingWorld.h
index 2964e86..b4b8e02 100644
--- a/Standalone/Source/StreamingWorld.h
+++ b/Standalone/Source/StreamingWorld.h
@@ -1580,7 +1580,7 @@ private:
             static_cast<unsigned long long>(D.islandSharedCacheConflictReplacements),
             static_cast<double>(D.islandSharedCacheLockWaitNanoseconds)/1000.0);
         if(D.passageComposerProfiled)
-            std::printf("[PassageComposerTile] key=(%d,%d,%d,lod%d) worker_ms=%.3f samples=%llu native_field_calls=%llu features=%llu route_candidates=%llu boundary_band_queries=%llu queries=%llu passage_iterations=%llu carve_segment_visits=%llu relief_field_calls=%llu sweep_segments=%llu sweep_pairs=%llu sweep_outside_pairs=%llu sweep_min_updates=%llu sweep_base_samples=%llu sweep_detail_samples=%llu sweep_grid_samples=%llu sweep_no_influence_samples=%llu sweep_lookups=%llu sweep_cache_hits=%llu sweep_base_hits=%llu sweep_outside_hits=%llu sweep_missing=%llu\n",
+            std::printf("[PassageComposerTile] key=(%d,%d,%d,lod%d) worker_ms=%.3f samples=%llu native_field_calls=%llu features=%llu route_candidates=%llu boundary_band_queries=%llu queries=%llu passage_iterations=%llu carve_segment_visits=%llu relief_field_calls=%llu sweep_segments=%llu sweep_pairs=%llu sweep_prepare_ms=%.3f sweep_outside_pairs=%llu sweep_shell_support_skips=%llu sweep_min_updates=%llu sweep_base_samples=%llu sweep_detail_samples=%llu sweep_grid_samples=%llu sweep_no_influence_samples=%llu sweep_lookups=%llu sweep_cache_hits=%llu sweep_base_hits=%llu sweep_outside_hits=%llu sweep_missing=%llu\n",
                 Event.Key.Coord.X,Event.Key.Coord.Y,Event.Key.Coord.Z,Event.Key.Level,
                 Event.WorkerMilliseconds,static_cast<unsigned long long>(Event.DensitySamples),
                 static_cast<unsigned long long>(D.fieldCalls),
@@ -1593,7 +1593,9 @@ private:
                 static_cast<unsigned long long>(D.passageReliefFieldCalls),
                 static_cast<unsigned long long>(D.passageSweepRouteSegmentCandidates),
                 static_cast<unsigned long long>(D.passageSweepSegmentSamplePairs),
+                static_cast<double>(D.passageSweepPrepareNanoseconds)/1.0e6,
                 static_cast<unsigned long long>(D.passageSweepOutsideInfluencePairs),
+                static_cast<unsigned long long>(D.passageSweepShellSupportSkips),
                 static_cast<unsigned long long>(D.passageSweepMinimumUpdates),
                 static_cast<unsigned long long>(D.passageSweepBaseInfluenceSamples),
                 static_cast<unsigned long long>(D.passageSweepDetailShellSamples),
diff --git a/Standalone/Tools/verify/baselines/owner-hash/canonical/owner-hash-floating-islands-style2-v224.baseline b/Standalone/Tools/verify/baselines/owner-hash/canonical/owner-hash-floating-islands-style2-v224.baseline
new file mode 100644
index 0000000..0f40fff
--- /dev/null
+++ b/Standalone/Tools/verify/baselines/owner-hash/canonical/owner-hash-floating-islands-style2-v224.baseline
@@ -0,0 +1,12 @@
+[PipelineFullDetailHash] tiles=960 density=0x91931a57a067fd92 mesh=0xa818654be89790ac payload=0x370ff80451105a39 topology=0x06e507557aa70173
+[PipelineWholeViewHash] tiles=2370 density=0xa35a371ce6acca32 mesh=0x4543248df5bcd68e payload=0xc09831a7789624f4 topology=0x8a90dd2c5eb27f3e
+[PipelineLODHash] lod=0 tiles=512 density=0x2fd4c78685a43cfe mesh=0x50478cff1c1f8ca0 payload=0x54e48e57e0af26de topology=0x860c011cfdb9833a
+[PipelineLODHash] lod=1 tiles=448 density=0x4b8d9a6dcd2942ad mesh=0x17e89b7087bfe711 payload=0x2389c109eb780db6 topology=0x7eccd4cf560d0630
+[PipelineLODHash] lod=2 tiles=320 density=0x44883ae9ac5b1293 mesh=0x6060e05ca9ef6ee5 payload=0x8a24b5284ddf8940 topology=0xabd668b48ff3d62a
+[PipelineLODHash] lod=3 tiles=208 density=0xc779dd70120f47e4 mesh=0x2bbe518f85284a47 payload=0x1ab3ba13eb39c252 topology=0x7004b6f87b54afe6
+[PipelineLODHash] lod=4 tiles=240 density=0xfb11591772a3d18e mesh=0xebf2baee8764591b payload=0xe491d7ac9c0061ad topology=0xd618ac33b95ce494
+[PipelineLODHash] lod=5 tiles=144 density=0x2f8b7b7fb1e67258 mesh=0x4cd508cbe97344fd payload=0x2b6e96a6050458c9 topology=0x4ff6d0eda8988573
+[PipelineLODHash] lod=6 tiles=96 density=0x0114a34c8b8d6113 mesh=0xb1fec4d01ae1fa44 payload=0x3e50cfd429b8e950 topology=0x08090c96d15c1618
+[PipelineLODHash] lod=7 tiles=96 density=0x3836ed8cfce73418 mesh=0x40bc6589c5fc1aac payload=0x677349bcae16790f topology=0x36e3aa53192e6a6b
+[PipelineLODHash] lod=8 tiles=306 density=0x144f3c1fd722708b mesh=0xef77b28bf7fd9453 payload=0xe3f47b37fcd61489 topology=0x5a3c73e295494e04
+[PipelineExactQueryHash] probes=9 density=0x7b7c50ac24ccadcc unclamped=0x7b7c50ac24ccadcc detail=0xefcba20c0c70c415 collision=0xe604823a249029bf path=direct-Core-queries
diff --git a/Standalone/Tools/verify/baselines/owner-hash/canonical/owner-hash-surface-world-style1-v224.baseline b/Standalone/Tools/verify/baselines/owner-hash/canonical/owner-hash-surface-world-style1-v224.baseline
new file mode 100644
index 0000000..93c412d
--- /dev/null
+++ b/Standalone/Tools/verify/baselines/owner-hash/canonical/owner-hash-surface-world-style1-v224.baseline
@@ -0,0 +1,12 @@
+[PipelineFullDetailHash] tiles=960 density=0xace56c8f205238ad mesh=0xa9c603a1248de6b8 payload=0xea55f1f4fcc6a894 topology=0x5ea7bc78a1b678ae
+[PipelineWholeViewHash] tiles=2370 density=0x836f4c7ea35fc78c mesh=0xbe6b16363b1d1886 payload=0x24746690daed16a8 topology=0xc52f31c52006cec9
+[PipelineLODHash] lod=0 tiles=512 density=0xcd6ab28cfa504aca mesh=0xf03dc80a669fca31 payload=0x397aded1c3d2d297 topology=0xb4a1dc84fabc1fe3
+[PipelineLODHash] lod=1 tiles=448 density=0xce6e713828b2a20a mesh=0x1cf408c25d67d18c payload=0x8a2b5d20571c997e topology=0x51cd985fe8e7d100
+[PipelineLODHash] lod=2 tiles=320 density=0xf80a6131d2a43307 mesh=0xecb91b4a6429d557 payload=0x9dcb563bac3f2a0a topology=0xac65521b9bea7f7c
+[PipelineLODHash] lod=3 tiles=208 density=0x651a069b131bcff3 mesh=0x85886d10f751fe19 payload=0x818c568d0aaae4e3 topology=0x572fe40864ac6710
+[PipelineLODHash] lod=4 tiles=240 density=0x0be8798407724eaf mesh=0x131c303cbbe51434 payload=0x2a90ecf0a2411ca0 topology=0xe3e054a371152e08
+[PipelineLODHash] lod=5 tiles=144 density=0xf20897ad272103a9 mesh=0x13d00b6253ae1f72 payload=0x0db3880693a962fa topology=0x462bd87a80f15e89
+[PipelineLODHash] lod=6 tiles=96 density=0xc040fcac457d6313 mesh=0x1ed132eeb718fb62 payload=0xcd0214e35577c6e3 topology=0x2c56c69e6fdcfd64
+[PipelineLODHash] lod=7 tiles=96 density=0xc2d419446355fdb8 mesh=0x4ea44452574fc84b payload=0xfd9779bedfc9ae0f topology=0x8948546e770c9b72
+[PipelineLODHash] lod=8 tiles=306 density=0x62db31696f2da831 mesh=0xd373f9e9481532fe payload=0x540a60526e0e3e46 topology=0xc725cb901e6dc335
+[PipelineExactQueryHash] probes=9 density=0xc949c4df2ce6f9d9 unclamped=0xc949c4df2ce6f9d9 detail=0x114c501e2d830d94 collision=0xe6011d3a248d4849 path=direct-Core-queries
diff --git a/Standalone/Tools/verify/verify.py b/Standalone/Tools/verify/verify.py
index 7721d26..c752dbf 100644
--- a/Standalone/Tools/verify/verify.py
+++ b/Standalone/Tools/verify/verify.py
@@ -122,11 +122,11 @@ RECIPE_RE = re.compile(
 
 def owner_hash_baseline(recipe: str, style: int) -> tuple[Path, str]:
     if recipe == "surface-world" and style == 1:
-        return (BASELINES / "owner-hash/canonical/owner-hash-surface-world-style1-v223.baseline",
-                "L115-v223-continuous-arc-length-floor-profile")
+        return (BASELINES / "owner-hash/canonical/owner-hash-surface-world-style1-v224.baseline",
+                "L119-v224-adaptive-half-pipe")
     if recipe == "floating-islands" and style == 2:
-        return (BASELINES / "owner-hash/canonical/owner-hash-floating-islands-style2-v223.baseline",
-                "L115-v223-continuous-arc-length-floor-profile")
+        return (BASELINES / "owner-hash/canonical/owner-hash-floating-islands-style2-v224.baseline",
+                "L119-v224-adaptive-half-pipe")
     raise VerificationFailure(f"no pinned owner hash baseline for {recipe} style {style}")