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svg-character-animation

Animate SVG character rigs with GSAP, CSS transforms, Remotion frame control, and HyperFrames-compatible browser previews.

Published by OpenMontageInc ↗OpenMontageInc/OpenMontage

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SKILL.md

name: svg-character-animationdescription: Animate SVG character rigs with GSAP, CSS transforms, Remotion frame control, and HyperFrames-compatible browser previews.license: MIT

SVG Character Animation

Use this skill when animating character rigs made from SVG parts.

Runtime Rules

  • Animate transforms (x, y, scale, rotation) rather than layout.
  • Use timelines for multi-part acting beats.
  • For SVG elements, use stable pivots (svgOrigin or correctly scoped transform origins).
  • In Remotion, do not let GSAP advance with requestAnimationFrame; drive a paused timeline from the current frame.

Browser Pattern

gsap.set("#arm_right", { svgOrigin: "390 310" });
const tl = gsap.timeline({ defaults: { ease: "power2.inOut" } });
tl.to("#head", { rotation: -8, duration: 0.2 })
  .to("#arm_right", { rotation: 35, duration: 0.4 }, "<");

Remotion Pattern

const frame = useCurrentFrame();
const progress = frame / durationInFrames;
timeline.progress(progress);

HyperFrames Pattern

Use HTML/SVG/GSAP components with deterministic timelines and validate via the HyperFrames CLI before final render.

Quality Checklist

  • Parts stay connected at pivots during motion.
  • Blinks, gaze, and mouth shapes are separate enough to read.
  • Pose holds are long enough to communicate emotion.
  • Frame sampling shows meaningful deltas, not frozen animation.

Sources

svg-character-animation by OpenMontageInc · The Skill Leaderboard