Fr0zkaandClaude Opus 5.5
75210e56f3
Luna, integration round 3, from the owner's four in-game screenshots: - Capsule rings at the opening and the shaft continuing through the cave room were Core world defects: the synthetic bore is removed and the opening gets a finite origin room and floor (solid below). New world version, W1/W8/W16 identical: density a8bcb72d41092503, mesh 90f29ba15e24579f, payload 82c6b489e7bb7fd7, topology 7b99448a1f844f2c. - B-side landing and surface: headless coverage found no missing tiles or LOD-transition gaps (960 / 640 fine tiles compiled after travel); best explained by Core's missing SurfaceWorld representation. Null-RHI cannot rule out a presentation-only issue. - Core mode GetBiomeAtWorldLocation now answers (e.g. Biome_Surface_Plain); biome terrain itself is not generated yet (proposal: native Core SurfaceWorld evaluator). Owner checked the Step29 viewer himself: the surface strate type is absent there too. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MmSoF64BbRFmk9C3p1VsBJ
51 lines
3.6 KiB
Markdown
51 lines
3.6 KiB
Markdown
# CLAUDE.md — VoxelForge
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UE5 **density-field voxel terrain** plugin (strates / Marching Cubes / async streaming).
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Don't re-read the whole plugin — use the map.
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## ⛔ #1 rule: NEVER build or compile
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Jahni runs every build himself (he has the editor open; running it via Claude just burns cost).
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When code changes are done, **stop and say "ready to build"** + list likely compile-error spots,
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then wait for his results / pasted errors. Same for in-editor checks — ask for a screenshot, don't
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try to run anything.
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## Read first (in order, load only what the task needs)
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- **[CODEMAP.md](CODEMAP.md) — ALWAYS.** Navigation: what it is, data-flow (§2), symbol→`file:line`
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index (§3), "I want to change X → go here" (§5), conventions & gotchas (§6). Trust **symbol names
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over line numbers** (lines drift).
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- **[ARCHITECTURE.md](ARCHITECTURE.md) — when touching generation / strates / passages / biomes.**
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The deep design (archetypes, (0,0) spine, disturbances, content/atmosphere, biomes) **and the
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`§8.10` performance invariants ("don't regress").**
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- **[fable-idea.md](fable-idea.md) — before planning PERF or FEATURE work.** Ranked perf+feature
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roadmap with verified hot spots; check it so you don't re-propose done/known work. (A perf pass
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already shipped: game thread solved ~3.94 ms, CullTiles spiral fixed, region-granular foliage.)
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- **[REVIEW_FINDINGS.md](REVIEW_FINDINGS.md)** — open quality/cleanup items (cross-check vs fable-idea
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before acting; some may already be addressed).
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## Hard rules (these prevent real bugs — verify against code, don't assume)
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- **Density sign: negative = solid, positive = air** (MC convention at the mesher).
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`FVoxelModification::Strength` negative = carve. *The #1 source of confusion.*
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- **Density functions take VOXEL coords, not cm.** The legacy plugin field uses 12.5 cm voxels;
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the opt-in Core field uses 25 cm voxels and its own tile keys. One legacy 32³ chunk is 4 m.
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Conversions live in `VoxelTypes.h` and the Core bridge; do not mix scales in queries, anchors, edits,
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or surface lookups.
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- **Determinism:** all randomness = hash of (coord, seed, strateIndex). No RNG state — same seed ⇒
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same world. Player edits (diff layer) are the only non-deterministic overlay.
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- **Core world invariants:** Core density keeps the same sign (negative solid, positive air), but Core
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voxel coordinates are 25 cm. Worker-count changes must preserve hashes; Core world edits are
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intentional world-version changes and must retain finite, walkable strate entrances and exits.
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- **Async safety:** worker tasks only READ Generator/Mesher, must check `bShuttingDown`, and return via
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the result queues — `ProcessQueue` and its `CriticalProcessQueue` / `EditedProcessQueue` /
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`NearProcessQueue` siblings (all must stay `EQueueMode::Mpsc`). `EndPlay` blocks on `ActiveTaskCount → 0`.
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- **Carry the `Epoch`** through any new async path (stale results are dropped on mismatch).
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- **Don't "optimize" the perf invariants** in ARCHITECTURE `§8.10` — the `thread_local` box-valid
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caches, two-pass MC loop, SSE noise, and clipmap streaming are intentional.
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- **Never edit** `Binaries/`, `Intermediate/`, `*.generated.h`. Comments are French + English — match
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the surrounding file.
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## Discipline (keep the map alive)
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- Add / rename / move a symbol → update its **CODEMAP §3** row (symbol-first; line is a hint).
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- Change generation/strate design → update **ARCHITECTURE §8**.
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- Resolve a checklist item → tick it in **REVIEW_FINDINGS.md**.
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- Don't duplicate content across these files — each has one job (map / design / findings / rules).
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