Expand movement library across domains + add hip-hinge primitive - #1
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Engine: add a `hinge` action on the pelvis (parser action + pelvis ROM, max 120°). The renderer counter-rotates the hips against the pelvis tip so the legs stay planted while the torso pivots over the hip line — a true hip hinge instead of the faked spinal roll-down. Powers deadlift, bent-over-row, good-morning, and bow. Content: 26 new curated .movit examples across Education (single-joint ROM demos), Physiotherapy, Desk & posture, Sports/Martial arts, and Dance (the flagship, incl. an 8-count dance-phrase) plus hinge showcases. All render on the v0.1 rig with zero ROM warnings. Registered in the playground presets with domain tags so the gallery auto-groups them. Tests: new examples.test.ts parses every example and asserts zero errors and zero ROM warnings; hinge parse + ROM-clamp tests; a render test asserting the hip counter-rotation keeps the thighs vertical under a pelvis hinge. Docs: new docs/market-research.md (go-to-market + per-domain briefs, Dance as flagship); SPEC.md and llm-authoring.md document `hinge` and add a domain/dance authoring guide; ROADMAP marks the hinge unlock shipped. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018WCktDrKYZpJjCb2apbqWp
Takes on the rest of the roadmap's engine unlocks (on top of the shipped hip-hinge), each with a matching movement batch, tests, and docs. Shared infra: - Generalize grounding to a bounding-box drop (index.ts) so any pose rests on the floor — standing/plank on feet/hands, lying/seated on back/glutes. - Plumb new IR fields through parser/schema/clamp/timeline: Phase.reaches and MovitIR.props, with `prop <type>` and `reach: <effector> <target>` syntax (no tokenizer change). Reach-to-target IK: wire the existing-but-unused solveCCD into the viewer. A hand/foot reaches a body landmark, the floor, or a prop anchor; runs after ground-lock. Movements: touch-toes, cross-body-reach. Lying & seated base poses: add supine/prone/seated to poses.ts (grounded by the bbox drop). Movements: glute-bridge, dead-bug, cobra, seated-forward-fold. Scene props + anchors: new props.ts builds chair/wall/bar meshes with named anchors merged into reach-IK. Movements: chair-sit-to-stand, box-squat, wall-sit, dead-hang, hanging-knee-raise. Hand/finger rig: one curl bone per finger off each wrist (mannequin + joints + rom + `fingers` group). Movements: make-a-fist, pinch-grip, finger-spell-demo, hand-wave. Tests: render.test covers reach-IK convergence, lying-pose orientation + bbox-grounding, prop anchors + reach-to-anchor, and finger curl; examples.test auto-validates all 15 new examples parse with zero ROM warnings (125 tests). Docs: SPEC, llm-authoring, ROADMAP (unlocks marked shipped), market-research, and README updated for the new syntax and capabilities. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018WCktDrKYZpJjCb2apbqWp
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Engine: add a
hingeaction on the pelvis (parser action + pelvis ROM,max 120°). The renderer counter-rotates the hips against the pelvis tip so
the legs stay planted while the torso pivots over the hip line — a true hip
hinge instead of the faked spinal roll-down. Powers deadlift, bent-over-row,
good-morning, and bow.
Content: 26 new curated .movit examples across Education (single-joint ROM
demos), Physiotherapy, Desk & posture, Sports/Martial arts, and Dance (the
flagship, incl. an 8-count dance-phrase) plus hinge showcases. All render on
the v0.1 rig with zero ROM warnings. Registered in the playground presets
with domain tags so the gallery auto-groups them.
Tests: new examples.test.ts parses every example and asserts zero errors and
zero ROM warnings; hinge parse + ROM-clamp tests; a render test asserting the
hip counter-rotation keeps the thighs vertical under a pelvis hinge.
Docs: new docs/market-research.md (go-to-market + per-domain briefs, Dance as
flagship); SPEC.md and llm-authoring.md document
hingeand add adomain/dance authoring guide; ROADMAP marks the hinge unlock shipped.
Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com
Claude-Session: https://claude.ai/code/session_018WCktDrKYZpJjCb2apbqWp