Smooth dance choreography and root travel

[a-baran-orhan]

What changed

• add time-aware cubic Hermite interpolation for root travel and yaw through continuous flow waypoints
• preserve literal interpolation for explicitly linear phases
• rebuild all ten dance presets with smoother timing, corrected ballet mechanics, and more authentic alternating footwork
• add a regression test covering root-velocity continuity across travel waypoints

Why

The procedural dance clips reached their authored poses, but travel direction and speed changed abruptly at phase boundaries. Several phrases also contained choreography problems such as plantarflexed heels during plié, abbreviated box/waltz patterns, and one-step slides back to the origin.

This keeps momentum continuous while retaining exact phase endpoints and explicit rest behavior. It also makes the shipped dance examples read more clearly and naturally on the production character.

Validation

• npm test — 256 tests passed
• npm run typecheck
• npm run build
• npm run eval — 1,049/1,049 checks passed, 73 movements, zero parse failures, zero clamp warnings

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Project	Deployment	Actions	Updated (UTC)
posecode	Ready	Preview, Comment	Jul 14, 2026 1:39pm