jeremy
854dbb5ce4
Root AGENTS.md is now a thin entry point + knowledge map; the batch-workflow detail it duplicated already lived in .claude/skills/animation/SKILL.md. Folded docs/ (dances registry + iclone-bridge stub), root plans/, and devops-reports/ into .agents/wiki/ and .agents/plans/ per the per-repo .agents/ convention. Added .agents/SOUL.md, .agents/AGENTS.md, wiki/ARCHITECTURE.md, wiki/architecture/, and wiki/master-plan.md (derived from the closed plans + the dance registry's live ceremony-slot table). Fixed doc-path references in exchange/GUIDE.md, the animation skill, and the iclone-bridge stub. All moves via mv (git detected as renames) — no content deleted. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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dance1 — motion description
Kinematic description of the dance1 clip (dancegen/dance1.glb, clip Dance1),
derived by sampling world-space bone positions across the whole clip in Blender —
not a subjective guess. Duration 30.0 s, retargeted onto the Quaternius rig.
One-line read
An energetic, arm-forward full-body dance: big symmetric sweeping arm gestures carry the performance, over busy footwork and pronounced level changes, while the whole body ranges around a ~1.2 × 1.7 m footprint. It never settles — continuous, flowing motion for the full 30 seconds.
What actually moves (path length over 30 s = how much a joint travels)
| Rank | Body part | Travel | Read |
|---|---|---|---|
| 1 | Both hands | ~49–50 m each | The stars of the dance — huge, near-constant sweeps |
| 2 | Forearms | ~32–33 m | Big arcs from the elbow reinforce the hand work |
| 3 | Shins | ~25–26 m | Busy legs — steps, lifts, direction changes |
| 4 | Upper arms / feet | ~18–21 m | Full-shoulder arm swings; active but grounded feet |
| 5 | Head / spine / pelvis | ~16–17 m | Whole torso rides along — leans and level changes, not stiff |
Hands move at roughly 1.7 m/s average with constant direction changes, and each hand's reach spans ~1.7–2.5 m per axis — meaning full-wingspan sweeps that go both high (≈1.5–1.7 m vertical range) and wide. This is expansive, expressive upper-body choreography, not tight or contained.
Character traits
- Highly symmetric arms — left/right hand travel matches at a 0.99 ratio. The arm choreography is mirrored/synchronized, the hallmark of a choreographed or group-style routine (consistent with Polynesian dance vocabulary).
- Slight left-foot bias — feet symmetry is 0.89 (left foot a bit busier), so the legwork isn't perfectly mirrored; there's a lead side.
- Big level changes — pelvis vertical range is 0.94 m. The dancer drops and rises a lot (deep bends / crouches into extensions), which gives the dance its dynamic, punchy feel rather than staying at one height.
- Travels the space — pelvis moves over a 1.2 × 1.7 m horizontal area (16 m of total travel), so it's not planted-in-place; expect stepping and repositioning.
Rhythm / tempo (caveat)
Autocorrelation of the most-active joint's vertical motion peaks around ~205 bpm,
which is almost certainly the double-time harmonic of the real musical pulse —
halving it gives ~100–103 bpm, a lively mid-tempo. Treat this as approximate: the
trustworthy tempo comes from the source reference video's music, not the retargeted
motion. The bpm: 100 in dance1.json is a hand-set placeholder that happens to land
in the same neighborhood.
If scoring a song to it
Aim for a ~100 bpm groove with a strong backbeat and room for sweeping, sustained phrases (to match the long arm arcs) punctuated by accents on the level drops (the pelvis dips). Symmetric, repeating 4- or 8-bar structures will sit well against the mirrored, cyclic choreography. Confirm the real tempo against the source footage before locking it in.
Generated 2026-07-15 from exchange/converted-glb/dance1.glb via Blender headless
motion sampling. Method: per-frame world-space bone positions → path length, bounding
range, L/R symmetry, and vertical-signal autocorrelation for tempo.