jeremy
3d8825f5a9
REGISTRY rewritten around the central rule: a character folder is born only when a body ships to ariki-game (<character>_base_v<NN> = ship ordinal). lena_nude dissolves accordingly: - characters/female/lena_base_v01/ — SHIPPED 2026-08-10: AccuRig GLB carrier, T-pose/rig FBX + JSON, previews, frozen README - characters/work/lena/ — the live lane: recipes 01-47 (incl. new 36-47: refill/sheets/clay/despeckle/musculature/spin/AccuRig export/graft/pose QC), masters (athletic_v04 blend + textures, accurig blend), lane-history README - hires_claude/hires_work intermediates (blends, logs, probes) pruned Supporting docs: AGENTS.md, working-files rule, rig-graft plan addendum, originals README, prune_lane.py. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
91 lines
4.7 KiB
Markdown
91 lines
4.7 KiB
Markdown
# Handoff: `lena_nude_decimated_glb_v03.glb` — v04 geometry, re-atlased, double-sided
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> **HISTORICAL — paths in this file are dead.** Written 2026-08-06, before the
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> 2026-08-11 restructure. The `characters/female/lena_nude/` tree it references no
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> longer exists and the `decimated_glb_vNN` chain it describes was pruned; that body
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> went on to ship as `characters/female/lena_base_v01/`. Kept because the
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> **double-sided finding below is still load-bearing** for the shipped asset.
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> Regenerate any file named here with the recipes in this lane.
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**2026-08-06.** Supersedes `decimated_glb_v01` (decimated from the v03 sculpt) and
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`decimated_glb_v02` (v01 re-atlased). Both are stale: the bust-matched **v04** sculpt landed after
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them.
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## The file
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`characters/female/lena_nude/lena_nude_decimated_glb_v03.glb`
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| sha256 | `730f8baee15ab9c20b538654373e3dbe1ec4ccaa353e51e1164fe6d94615d126` |
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| parent | `lena_nude_sculpt_glb_v04.glb` (master `hires_claude/34_v04.blend`) |
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| recipe | `30_decimate.py` → `24_seams.py` → `31_reatlas.py` |
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| mesh | 31,964 v / 64,957 tris in Blender; 39,416 v as exported |
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| maps | basecolor + normal + rm embedded, 4096², JPEG q95, correct colorspaces |
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| material | **`doubleSided = true`** |
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| rig | none — unrigged, transforms applied |
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Rebuild from the lane root:
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```
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blender --background --python 30_decimate.py -- 34_v04.blend atlas_v03/dec_raw.glb 31670
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blender --background --python 24_seams.py -- atlas_v03/dec_raw.glb atlas_v03
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blender --background --python 31_reatlas.py -- atlas_v03/seamed.blend atlas_v03 \
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../lena_nude_decimated_glb_v03.glb
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```
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Roughly four minutes end to end, nearly all of it the decimation bisect.
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## The grey tears are fixed, and they were never holes
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Every review render of v01/v02 showed ragged grey tears across her face and the underbust band.
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The v01 handoff attributed them to 835 boundary edges / dangling flaps and called fills impossible.
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**They were backface culling.** The glTF material arrived single-sided, so Blender culls
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backfaces; the mesh has regions wound inward, and culled they show the background straight through.
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Rendering the *same file* with culling off makes them vanish entirely.
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Note the trap: those regions are wound **consistently within themselves**, so their vertex normals
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flip too. Any test that compares a face against its own neighbourhood — including
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`normals_make_consistent`, which is why `30b_fix_winding.py` oscillated 61 → 260 → 39 → 25 → 25 —
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declares them fine. A per-face check against its own vertex normals finds only 25 stray triangles
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covering 0.8 cm², which cannot account for a 15 cm band. Only a viewer with culling sees it.
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The fix here is `doubleSided = true`, which costs a character body essentially nothing. If you ever
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need true single-sided culling, the real repair is a ray-parity test per connected patch (count
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surface crossings along ±normal to decide which way is out), not another `make_consistent` pass.
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## What changed vs v02
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| | v02 | v03 |
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| geometry | v03 sculpt | **v04**, bust matched to the approved turnaround |
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| grey tears | present | **gone** (doubleSided) |
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| coverage | 68.6% | 67.0% |
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| area-scale p95 / p99 | 1.77 / 2.27 | 1.78 / 2.32 |
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| sub-texel triangles | 569 (123 cm²) | **424 (30 cm², 0.14%)** |
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The atlas transfer was re-verified on identical geometry — input rendered with culling off so the
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comparison isolates the UV change: mean pixel \|Δ\| **0.0011**, p99 0.0118, 0.13% of body pixels over
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0.05. It is still a faithful rehousing of her texture, not a new look.
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## Still open
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- **Speckle.** Small dark flecks remain over the shoulders, arms and belly — scan noise carried in
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the texture, not an atlas artifact.
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- **She reads glossy.** The `rm` map is still the neutralised median from the garment-removal pass.
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- **The head is untouched original Tripo output** — the smearing at the nose and lips is source.
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- **Extremity tone.** Her feet measure 0.11 luma darker and 50% redder than her belly, and the rosy
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chest V is still there. Kept deliberately: Jeremy asked to preserve her original texture and
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replace only the breast/underwear region. Note this disagrees with the approved turnaround
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(`exchange/INBOX/lena-base-turnaround/`), which has uniform skin.
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- **The breast/underwear re-authoring has not been done.** That is the next stage, and the
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turnaround specifies it: featureless, no nipples, soft volume, smooth crotch.
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## Lane hygiene
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Two agents worked this folder on 2026-08-06 and the numbering collided twice: `20`/`21` and then
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`32`/`33`/`34` (`32_ref_measure`/`33_bust_variants`/`34_apply_bust` from the sculpt pass vs
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`32_skipprobe`/`33_ab`/`34_target_tone` from this one). Nothing was overwritten. Pick a fresh
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number rather than assuming the next one is free.
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