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de3416869f
SCENEGOD/logs/laneA.md
type-two de3416869f [laneA] M1: Stage viewport, retarget port, dock+inspector 
- room3d.js: pure-module port of rigroom retarget, target parameterized;
  _selftest bakes across two mismatched-rest skeletons (maxErr 6.4e-12)
- stage.js: Stage class (IBL, gizmo, entities, clip bake cache) per PLAN §4.2
- dock.js: asset dock + inspector, offline file-drop + clip retarget
- index.html/style.css: grid layout, guarded timeline import (page survives B absent)

Verified in-browser end-to-end: Mixamo char loaded+normalized, backdrop plane,
gizmo move, running clip retargeted (66 tracks) and animating live.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-18 18:06:22 +10:00

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Lane A log — append-only, newest at bottom

Format per session:

## <date> session N
DONE: …
DECISIONS: …
BLOCKED/REQUESTS: …
NEXT: …

(no sessions yet)

2026-07-18 session 1

DONE: M1 shipped and verified end-to-end in a browser.

  • web/room3d.js — ported the rigroom retarget as a pure ES module (no DOM/globals). Exports parseAny/canon/boneMap/captureRest/bakeRetarget/disposeRoot/stats + _selftest. bakeRetarget is now (clip, srcRoot, srcRest, tgtRoot, tgtRest, opts?) — target is a parameter instead of the closed-over char. Algorithm kept byte-for-byte (30fps world-delta bake, hips-height ratio, quat sign continuity, dup-hierarchy dedupe). Added .bvh to parseAny.
  • web/stage.js — class Stage per PLAN §4.2. IBL (RoomEnvironment+PMREM), grid+circle floor, OrbitControls director cam, TransformControls gizmo (W/E/R), raycast select, shadow-casting. addEntity handles character/prop/backdrop(plane|corner|dome)/camera/light; wrapper-Group holds all transforms, loaded root normalized+grounded underneath. prepareClip caches parse-per-path and bake-per-(entity,path,index). captureState/applyState round-trip entities.
  • web/dock.js — asset dock (Characters/Props/Backdrops/Animations tabs from /assets/tree, offline→file-drop) + inspector (transform/params editors, ⏺key dispatches scenegod:capturekey, delete). Local drop: image→backdrop, mesh→character, clip-onto-selected-character→bake+play.
  • web/index.html + web/style.css — CSS-grid layout (dock/view/inspector/timeline), rigroom importmap (three 0.160.0), ?selftest=1 badge. Timeline loaded via guarded dynamic import so the page never breaks when Lane B's file is absent.

VERIFICATION (browser, in-app):

  • ?selftest=1: PASS — two 3-bone skeletons, different rests+namespaces, baked 1s clip, world-delta match maxErr=6.4e-12, srcMoved=0.224rad (guard against a silently-frozen source).
  • Real end-to-end (Female_mixamo.fbx char + "Running.fbx" clip + a jpg backdrop, served from a throwaway scratchpad harness): char loaded (65 bones, 18.6k tris, normalized), gizmo-moved, clip retargeted (66 tracks) and animating live. Screenshot: logs/shots/m1-lady-running.png.
  • Page boots with zero console errors with BOTH timeline.js and the server absent.

DECISIONS:

  • selftest uses underscore namespaces (mixamorig1_/mixamorig4_), not colon — a colon in a bone name breaks three's PropertyBinding so the source clip wouldn't bind (silent pass). canon() still collapses both to the same key, which is the thing under test.
  • Added Stage.prepareClipUpload(id, buf, name, idx) (bake from in-memory bytes) so the offline file-drop path can retarget without a server. Stage.setMixerAuto(false) lets Lane B take over mixer stepping at SYNC 1 (default true so dropped clips preview standalone now).
  • backdrop param edits (mode/image/width) don't rebuild the mesh yet — marked M2. fov/light color/intensity are live.

BLOCKED/REQUESTS:

  • @Lane C: please confirm the item shape inside /assets/tree arrays. dock.js tolerates both a bare path string and {path,name,files:[{path,ext}]} (rigroom-style) for now — tell me the real one and I'll drop the fallback. Also confirm the page is served such that absolute /web/*.js imports resolve (I used /web/... to be URL-independent).

NEXT (M2, do not start until orchestrator flips the milestone line):

  • multiple cameras + PiP overlay via renderActiveCamera, light entity param plumbing polish, backdrop rebuild-on-param-change, drag-from-dock onto viewport (currently click-to-add).