Fr0zkaandClaude Opus 5.5
53a1e69af7
Bounds 517 boxes, 0 missed, negative control caught; capsule route 1044 centers, raised-route control fails; W1/W8/W16 stable (field bf3ce7da876431e2); 39 ms native vs 64 ms legacy. My review: islands read as thin flat pads with a radial pinch under them, not rock; next round fixes the look. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ
175 lines
11 KiB
Markdown
175 lines
11 KiB
Markdown
# M3 Round 1 — FloatingIslands standalone Core proof
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**Result:** the new finite island field builds in Core and the standalone legacy bridge. The recipe,
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bounds audit, worker-count field hashes and supported route pass for the frozen owner probe. The native
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result is intentionally denser and more routeable than the stochastic legacy slice; this is a measured
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visual difference, not a parity claim.
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## Native recipe and deliberate differences
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Added `FloatingIslandRecipeV1`, `FloatingIslandManifestV1`, `FloatingIslandFieldV1` and the planner to
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Core. The island field is a reusable feature family on the `island` channel; it is not a branch inside
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the owner FloatingIslands generator. The standalone manifest carries recipe and plan hashes, seeded
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anchors, stable IDs, a connected cluster graph, finite influence boxes, bridge parameters and route
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points. Coordinates and density use the existing fixed scale of 1/256 voxel; one Core voxel remains
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25 cm and negative density is solid.
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The visual oracle was loaded from
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[`type_6_FloatingIslands.json`](../../OwnerShapeWorld/core_strate_coverage/probes/type_6_FloatingIslands.json)
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and queried through the legacy `GetDensityAt` evaluator. Its settings are seed 0, spacing 112 voxels,
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density 0.5, radii 24–48 voxels, thickness ratio 0.6, vertical jitter 0.6, top flatten 0.6,
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roughness 3 voxels, blend radius 6 voxels and boundary seal 4 voxels. The native recipe uses those
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shape ranges and aligns its middle island to a detected legacy top at `(48, 16, -1904.035)` voxels.
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The native shape uses a flat-ish top, an explicit finite underside plane, tapered radial support and
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a bounded 12.6016-voxel three-harmonic lobe warp. This intentionally replaces the legacy query-space
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3D fBM warp with a stable bounded contour function. The legacy source has no explicit lower plane in
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its island max-SDF; the native bottom closes the taper instead of carrying the legacy centerline
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degeneracy below the nominal island bottom. Native surface roughness remains bounded to the recipe's
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3-voxel envelope.
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The planner guarantees five primary route islands. `islandDensityQ16` selects up to two optional side
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sites; this seed selected one, producing six islands and five sharp-tag-ready connectors. This differs
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from the legacy stochastic density roll, which decides whether every grid site exists. The planner
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keeps the route-connected islands in a narrower vertical band than the legacy strate: adjacent height
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changes are clamped to the capsule grade contract, with a 5% grade reserve, and the serialized route
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is fitted above its sampled capsule footprint. Connectors land 0.62 radii into the island tops, use a
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4-voxel half-width and 3-voxel thickness, and extend the field through the landings. This is why the
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local native slice contains substantially more rock than the old slice. The fixed-season water block
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is not emitted here; player edits remain unrestricted, and this generation audit applies the route
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law only to system-generated geometry.
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## Bounds and route audits
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Island AABBs include radius, maximum lobe displacement, taper Z, roughness and smoothing reach.
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Connector AABBs include the swept bridge width, endpoint span, thickness, roughness and smoothing
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reach. A box intersecting any feature influence box returns unknown; a box outside every feature box
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gets the certified all-air interval. The audit sampled each local field box and the void beside the
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connectors.
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| Audit | Result |
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|---|---:|
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| Island / connector influence boxes | 6 / 5 |
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| Bounds boxes / point samples | 517 / 13,932 |
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| Intersecting boxes left unknown | 108 |
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| Missed bounds | 0 |
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| Void boxes proven air | 4 |
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| Shrunken-island-bound negative control | Detected |
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| Bound audit | **Pass** |
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The bounds negative control removes the lobe and blend reach from a candidate island box, then finds
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negative density outside that false box while excluding every other feature's valid influence box.
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The final-field route has 117 waypoints and 116 segments. Its analytic capsule sweep samples route
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centers no farther apart than 0.5 voxel, 17 capsule cross-section positions and five support probes
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per center; at least three support probes must find rock within the recorded search depth.
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| Route result | Value |
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|---|---:|
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| Swept centers / capsule field samples | 1,044 / 283,968 |
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| Support probes | 6,344 |
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| Capsule samples inside rock | 0 |
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| Unsupported centers | 0 |
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| Grade failures | 0 |
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| Minimum sampled density | 40 subvoxels (0.15625 voxel) |
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| Route sweep | **Pass** |
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The negative control raises the whole route by 8 voxels. It is rejected at all 1,044 swept centers for
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lack of support (zero capsule collisions), so the support test detects the failure mode independently
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of capsule intersection.
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## Determinism and existing hashes
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Planner calls repeated three times with identical canonical JSON and hashes. The 32,768-point native
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field stream hashes identically at W1, W8 and W16. Stable IDs for this plan are:
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| Feature | Stable IDs |
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|---|---|
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| Islands | `e6e461e18b3a9c87`, `2bc1820baba047f6`, `adc259cbe2a395e9`, `62a5f29ab581c2b0`, `0412f78b71b39ceb`, `7855fb022cc561c9` |
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| Connectors | `eaa5dd310e846520`, `034023599b466c51`, `08e698cf39fd6c22`, `3794e6d8e5033e8b`, `4962fa885545fb26` |
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The standalone check reparsed and validated the existing manifests without changing their content
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hashes: M1 round-1 `c87ae279b0e26f53` and SurfaceWorld round-4 `8933693d9560ba9f`. The existing Core
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field evaluators and M2 mesher implementation were not edited; the full M2 actor/mesher hash matrix
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was not replayed in this standalone round.
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| New island content | Hash |
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|---|---|
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| Recipe | `111825edfebea17f` |
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| Plan | `65675554b7aa947e` |
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| Manifest | `03a4685554edce1a` |
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| Field samples W1 / W8 / W16 | `bf3ce7da876431e2` each |
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## Matched captures and legacy timing
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Five CPU-rendered capture pairs use the same detected island anchor, orthographic camera and scale.
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The cluster and close-up fields were sampled at 4-voxel and 2-voxel grids respectively. The
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tile/LOD view overlays 32-voxel tile and 64-voxel LOD reference planes on the canonical field mesh;
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it is a review view, not a production mesher seam-closure test. No viewer or GPU was launched.
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[`contact_sheet.jpg`](results/captures/contact_sheet.jpg) — 640×1,290 px, 68,601 bytes. Individual
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matched pairs are in [`captures/`](results/captures/); each is 640×258 px and 12,798–18,890 bytes.
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They show the overview, underside, lobed edge/cliff, tile/LOD references and planned route. The legacy
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side of the route pair is unmarked because the legacy generator has no planner route.
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The same 32,768 quantized query positions were timed serially against the direct legacy owner evaluator
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and `FloatingIslandFieldV1::densitySubvoxels`, excluding plan generation, mesh extraction, rendering
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and Unreal scheduling:
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| Evaluator | Time |
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|---|---:|
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| Legacy owner bridge (`GetDensityAt`) | 63.62 ms |
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| Native island field | 39.31 ms |
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| Native / legacy | 0.618× (about 1.62× faster) |
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This is a point-query comparison for the island field, not a full-world or tile-meshing benchmark. In
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the same sparse sample, 90 legacy samples and 885 native samples were solid: 14 were legacy-only and
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809 native-only. The overall sign mismatch is 823/32,768 (2.512%), mostly because air dominates the
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sample volume. The side-by-side captures and these occupancy counts show that percentage must not be
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read as visual or occupancy parity; the routeable native cluster is denser in this narrow vertical
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slice than the stochastic owner field.
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## Run ledger
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All builds and audit runs stayed below the 15-minute stop limit. No process crashed and no
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`0xC0000142` retry occurred. The audit wrapper samples its test process; the final process peaked at
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45.8 MiB private memory and the highest observed failed-audit process was 159.3 MiB. The existing
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MSVC setup prints a French `vswhere.exe`-not-found warning before successfully finding `vcvars64.bat`;
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the standalone build also emits existing float-conversion warnings in `VoxelStrateManager.cpp`.
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| Failed run | Failure | Correction / outcome |
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| Initial `Target All` compile | New island methods referenced interval/detail types declared later; one `Q` use was outside its namespace. | Forward declarations and qualified fixed-scale constant; subsequent Core/All builds passed. |
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| Second `Target All` compile | One remaining unqualified `Q` in `FloatingIslandFieldV1::isValid`. | Qualified it; subsequent builds passed. |
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| First audit-wrapper invocation | Default probe path resolved one directory too high; audit executable did not start. | Corrected the probe path. |
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| First audit-harness compile | Windows `min`/`max` and `TEXT` macros broke standard-library expressions. | Set `NOMINMAX` and removed the conflicting compatibility macro around `Windows.h`. |
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| Route attempt 1 | 445 blocked capsule samples; 7 grade failures. | Fit route height to the full capsule footprint and start grade fitting. |
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| Route attempt 2 | 0 blocked; 19 unsupported centers; 3 grade failures. | Added smaller route intervals and a grade reserve. |
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| Route attempt 3 | 0 blocked; 23 unsupported centers; 10 grade failures. | Added precise first-failure diagnostics; set a 5% grade reserve. |
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| Route attempt 4 | 0 blocked; 38 unsupported centers; grade passed. | Extended bridge landings into the island tops. |
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| Route attempt 5 | 17 blocked samples; support and grade passed. | Raised the recorded capsule clearance from 0.25 to 0.5 voxel. |
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The final `Target All` build and final standalone audit passed. The final run is retained in
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[`run_ledger.txt`](results/run_ledger.txt); audit metrics, plan data and query breakdown are in
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[`audit.json`](results/audit.json).
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## Source inventory and round boundary
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New source files:
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1. `Standalone/Core/src/FloatingIslandsInternal.h` — Core field, serializer, planner, bounds and route audits.
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2. `Standalone/Research/WorldAssemblerM3/Round1/FloatingIslandsAudit.cpp` — legacy comparison and standalone audit driver.
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3. `Standalone/Research/WorldAssemblerM3/Round1/BuildFloatingIslandsAudit.ps1` — BelowNormal build/run wrapper with time and test-process memory caps.
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4. `Standalone/Research/WorldAssemblerM3/Round1/RenderFloatingIslandCaptures.py` — CPU-only small matched capture renderer.
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Changed existing source/docs: `Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h`,
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`Standalone/Core/src/VoxelForgeCore.cpp` (include only), `Standalone/Core/API.md`, and this report.
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`Source/` and `Standalone/Source/` were not edited. No owner project files, editor, `.uasset`, commit,
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push or stash were touched.
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This round ends at standalone Core proof. `FloatingIslandManifestV1` is not yet embedded in
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`WorldAssemblyManifest` or the Unreal adapter. The reference-plane capture does not close production
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tile/LOD seams, the route is not cooked into Unreal collision, and the feature emits no seasonal
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water body. These belong to later M3 integration/look rounds; player-edit policy remains the owner's
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unrestricted choice.
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