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threejs-procedural-animation

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Build advanced procedural animation in Three.js. Use for launch kinematics, gravity turns, staging, spin docking, target-frame decomposition, spring-follow motion, rotating-frame alignment, peeling debris, analytic transform timelines, frame-rate-independent response, and quaternion control.

skills/threejs-procedural-animation/SKILL.md

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Oct 22, 2026
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# Procedural Animation

Animate semantic state, not unrelated transform curves. Define phases,
coordinate frames, velocities, and ownership before writing per-frame updates.

## Build order

1. Define the timeline phases and event boundaries.
2. Choose the frame for each motion: world, subject local, orbital radial,
   docking axis, or camera shot.
3. Derive target position/orientation from that frame.
4. Use analytic kinematics for authored travel and springs for responsive
   convergence.
5. Preserve world transforms when detaching children from a hierarchy.
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