VoxelForge/Standalone/Research/WorldAssemblerM3/Linux33/REPORT.md

Linux33 report

Upper SurfaceWorld route

The old fixed candidate set used 64 m chords, 2 m waypoint spacing and 16 m centre spacing. On the refreshed upper-stack fixture, the legacy replay measured 366/648 candidates above the 15° grade limit; its worst segment was 79.971° at XY (−84,−48) to (−82,−48). These were long paths over steep terrain relief near the outer search area. L23’s earlier fixture reported 648/648 grade rejects; the refreshed fixture gives a different count. The route Z samples are terrain-ground heights (about −503 m at the chosen mouth), not a target at the bottom of the 499 m strate. There was no unit or bedrock-reference error.

The planner now caps chords at 58.5 m for the 24 m arrival and 37.5 m departure radii, searches six lengths and places route centres on an 8 m grid, with a proximity cost favouring the origin. It found a 21.5 m walk from (−2.75,0) to departure (18.75,0), average grade about 4.2°. The SW passage starts at the ground floor (−503.166 m), with a 1.5 m portal blending to a 3.5 m tunnel over 9 m, then descends through SW rock. The first tunnel point is at (32.5,0), floor −505.637 m for style 0.

Upper-stack fixture audits

Fixture: FloatingIslands → SurfaceWorld → TunnelNetwork; recipe stamp floating-islands; layout identity resolved-layout-v3-fnv64:fc4e73619037f88c. Clang and GCC passed every row for every style.

Passage style	Floor chord deviation (voxels)	Passage and route audits	Open air	Naturalness	Bridge / columns	Bindings / walkability
0	2.081	2/2 each pass	0 violations	2/2 pass	pass / 0 failures	0 failures / pass
1	10.901	2/2 each pass	0 violations	2/2 pass	pass / 0 failures	0 failures / pass
2	14.822	2/2 each pass	0 violations	2/2 pass	pass / 0 failures	0 failures / pass
3	16.374	2/2 each pass	0 violations	2/2 pass	pass / 0 failures	0 failures / pass

All rows are recipe-stamped and passed on both compilers. Capsule blocking, unsupported samples and grade failures were zero; mouth-content and mouth-radius checks were 2/2. This includes open-air, naturalness, no-long-bridge, rock-column wall/support, route binding and walkability audits.

FloorProfileBlend

The old 2-voxel check measured maximum curve-to-straight-chord deviation, which grows with valid curvature and does not measure a seam. The check now compares endpoint height and tangent residuals. All styles have 0.00000000 voxel height residual and 0.00000000 voxel/m tangent residual (limits 0.010 and 0.001). Negative controls detected a 3-voxel step and a 0.25 voxel/m tangent step. Verdict: check corrected; no floor geometry change was needed.

Captures

Both 1600×900 JPEGs are under 300 KB. The first shows the SW ground mouth; the second is a cutaway through the rock entry.

Sizes and SHA-256: mouth 26,939 B, 561d3a1e334ea3a3115fb781a1130ec850d8777b74c1be3704c70b865878640a; rock entry 37,572 B, f85d150bf44cd2cdae1ee49de023ad9e4c657b8fa7e8d8f8b93abc86586ad6e5.

Hashes, determinism and cost

Owner-world hashes match L32 exactly: all 12 hash lines per run across Clang/GCC and both recipes passed the owner preflight; the L25 and 24 m crossing matrix also passed at W1/W8/W12 (24/24 owner rows). W12 whole-view hashes: SurfaceWorld density 953eb1df1705f277, mesh d8006cb43f44aa5b, payload 9217bff766970de5, topology 83e3aa6f3a063e60; FloatingIslands density 806537cdd98f8afb, mesh a4b06dd4d260943d, payload 763a99aa04a73eae, topology baa37d80d3620d87. The upper fixture was stable across W1/W8/W12 on both compilers. Total determinism: 30/30. Invariant audits: 16/16.

Five interleaved W12 cost pairs per recipe against L32: median whole-view ready time changed +0.99% for SurfaceWorld and +0.41% for FloatingIslands; paired medians were +0.57% and +0.41%, within run noise. Recipe/evaluator versions remain 2/20. No Unreal files changed; no Unreal build was run. No version bump was needed because the owner hashes are unchanged.

Failed and retried runs

• CLI setup rejected --compiler clang; the accepted form was --compiler=clang++-19. One shell quoting attempt ended at EOF. A FloatingIslands fixture initially had a surface-world recipe stamp and was regenerated with floating-islands.
• A translated ring centre failed the strict placement disk and was reverted. Fixture audit iterations: r1 had style 1–3 failures (TN capsule pinch, route undercut, naturalness); r2 had 141 open-air violations plus route/naturalness failures; r3 had strict ring-placement and route-support failures; r4 had four edge open-air samples. The broad column-window fix passed passage audits but changed owner hashes. Its first scoped retry dropped supported bracket samples and failed SurfaceWorld hash preflight on both compilers; restoring the original non-SW bracket bounds fixed it.
• An intermediate Clang build failed on coreVoxelSizeMetres and gradeSegments; both names were corrected. Final Clang 19 and GCC 14 --fp-contract=off, -j12 builds succeeded. An early determinism run on stale binaries was stopped after 21 rows and showed the interim hash mismatch; the final binaries passed all 30 rows.
• The first capture export included the far ring and grew to 2.49 GB; it was stopped before rendering. The LOD0 streamed export reduced the scene to about 2.2 MB. Capture framings r5–r8 rendered successfully but obscured the mouth; r9 is the inspected final framing.

No run exceeded 30 minutes and no step remained stuck for 15 minutes. Logs and exports are in Saved/Linux/l33/; no commit, push or stash was made.

Orchestrator review (Claude)

• Merged: the owner world is unchanged (hashes equal L32); SW-as-upper now plans its route and passes the full audit set on the FI→SW→TN fixture. The FloorProfileBlend check now measures seams (endpoint height/tangent residuals) with step/tangent negative controls. Accepted: chord deviation measured curvature, not a defect.
• Captures: sw-departure-mouth.jpg is out of focus and unreadable; sw-departure-rock-entry.jpg shows a natural opening but horizontal step-like ledges inside, reminiscent of the L23 terraces. L34 checks passage mouths and entries for stepping across styles and fixes the blurry capture setup.