Fr0zkaandClaude Opus 5.5
3073d1b2fd
AuditWholeSurfaceL48.py scans every LOD0 triangle in the route corridor + 3 m and the chamber box + 3 m: welded-edge normal variation, high-angle edge density, max jumps and sliver area in 1 m cells, clustered and located, with thresholds from native patches in the same export, plus a detrended full-width floor profile. L45 ramp, L46 entrance and L47 wall-foot meshes fail it; plain native terrain passes. Red-triangle SVG maps included. Not wired into the tiers yet; the attempted Core fix is parked on wip/l48-surface-audit. Research R15: mesh artifact metrics. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
61 lines
4.9 KiB
Markdown
61 lines
4.9 KiB
Markdown
# Linux48 report
|
|
|
|
## Whole-surface audit
|
|
|
|
`AuditWholeSurfaceL48.py` scans every LOD0 triangle in the route corridor plus 3 m and the chamber box plus 3 m. It welds shared edges, compares geometric face normals, and scores area-weighted normal variation, high-angle edge density, maximum jumps and sliver area in 1 m cells. Connected hot cells become located clusters. A separate floor pass bins the full floor patch at 0.25 m along the route and 0.5 m across it, removes a local moving-mean trend, and checks ripple and adjacent steps. Thresholds use ground-facing native patches from the same export. JSON results and red-triangle XY maps are emitted.
|
|
|
|
The detector has no general quadric residual or periodic-spectrum metric yet; terraces outside its floor patch rely on the normal-cluster measures. The control results are:
|
|
|
|
| Mesh | Result | Evidence |
|
|
|---|---|---|
|
|
| L45 ramp | Expected fail | One normal cluster, 0.669 m² |
|
|
| L46 entrance | Expected fail | 84.3 mm floor ripple; 159.1 mm largest step |
|
|
| L47 wall-foot | Expected fail | One 5-cell cluster, 5.243 m², 42 severe edges; floor profile 34.5/57.6 mm ripple/step |
|
|
| Plain native | Pass | No clusters; floor profile not present |
|
|
| L47 smooth floor | Pass | 0.59 mm ripple; 1.15 mm largest step |
|
|
| L48 candidate | **Fail** | Two clusters, 7.095 m² total, 65.5 severe edges, 303 flagged triangles; floor profile 34.5/57.6 mm |
|
|
|
|
The L47 cluster is at approximately `x=[-5,0], y=[22,25], z=[-505,-504] m`. At 0.188 m above the floor its wall-band p95 dihedral is 54.6° with a 160.4° maximum; the selected floor rails did not reach this band. The complete control output is in `Saved/Linux/l48/whole-surface-audit.json`.
|
|
|
|
## Teeth measurement and attempted fix
|
|
|
|
The L47 measurements localize the teeth to the floor-cap/bore-wall junction. The post-stamp cap has a hard radial cutoff there, and the floor-adjacent re-carve also uses a non-SDF weighted blend. A re-carve fade alone left the teeth in the capture. The final trial replaced both cavern cap gates with a rounded max of the sloped-floor distance and radial bore distance, restoring the L47 re-carve weight. This reduced the apparent tooth height in the capture but did not clear the whole-surface gate; the final mesh has more flagged area and a second cluster. The hard cap edge is implicated, but the cause is not proven and this is not a validated fix.
|
|
|
|
## Hashes and cost
|
|
|
|
Clang and GCC builds used source stamp `05ea28750b2ee89aa61655c386c6d74a6841c4d071374cda03c73a89b5efb578`.
|
|
|
|
Demo-off whole-view hashes match L47 exactly at W1 and W12:
|
|
|
|
- floating-islands: density `598e9daaa1744ccb`, mesh `3114e0f4f6dbf734`, payload `c49c4e48bff74089`, topology `cadd4edd10d4d8ef`.
|
|
- surface-world: density `7dc75e2c09302258`, mesh `0cb34c40ceec4ce3`, payload `9d23e8c46b515cf1`, topology `2962c9464991eedd`.
|
|
|
|
Fast took 202.7 s. Medium took 637.6 s; the whole-surface stage took 161.8 s and failed on L48. Full and its five-pair cost comparison were not run because medium did not pass. All build and verification processes used `TMPDIR=Saved/Linux/l48/tmp`; no command wrote to `/tmp`.
|
|
|
|
## Tiers and captures
|
|
|
|
| Tier | Result |
|
|
|---|---|
|
|
| Fast | Pass, 202.7 s |
|
|
| Medium | Fail, 637.6 s: L48 whole-surface gate |
|
|
| Full | Not run: medium prerequisite failed |
|
|
|
|
The five captures are `ground-entrance.jpg`, `entrance-looking-in.jpg`, `overview-entrance-and-chamber.jpg`, `inside-to-dais.jpg`, and `entrance-floor-low.jpg` in `captures/`. Flag maps: `flagged-regions-L47-wall-foot-control.svg` and `flagged-regions-L48-final.svg` (red flagged triangles, gray ROI, blue route).
|
|
|
|
## Failed runs
|
|
|
|
- The first fast invocation had no built binary; after the Clang/GCC builds, fast passed.
|
|
- Bypassing the post-stamp floor cap failed entrance rails. Broad SmoothMin/cap-mask trials either closed the mouth or failed the built-shape check; one planar mouth patch measured 5.575 m².
|
|
- Radial re-carve fades at 0.5 m and 1 m preserved the rails but left visible teeth and failed the whole-surface audit. Changing the support inset had no mesh effect.
|
|
- The final rounded-cap trial passed the legacy rails and shape checks, but failed medium with the clusters above. The 15-trial budget is exhausted. No full tier, commit, push or stash was performed.
|
|
|
|
## Orchestrator review (Claude)
|
|
|
|
Split. **The whole-surface audit is the result of this round,** and it's committed here as a tool, not yet wired into
|
|
the tiers. All three historical defects fail it (L45 ramp, L46 entrance, L47 wall foot) and plain native terrain
|
|
passes. It also shows that L47's floor near the walls carries 34.5 mm ripple and a 57.6 mm step, which the three
|
|
rails never sampled. **The Core change (rounded cap) did not pass** and is parked with the tier wiring on
|
|
`wip/l48-surface-audit`. Wiring the gate now would turn medium red on HEAD, because the flagged demo still has the
|
|
teeth. `assembler/world` stays on L47 Core. L49 builds the floor and bore as one SDF, with a filleted floor/wall
|
|
corner, before stamps, instead of patching with a post-pass cap.
|