feat(showcase): Mixamo jumping-jacks hook on hero, playground default, and README GIF - #41
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…, README GIF Re-enable the jumping-jacks clip-back on the three primary marketing surfaces as a pure eye-candy hook, while every other preset and the sub-3 README GIFs stay procedural (the DSL remains source of truth). - spec/examples/jumping-jacks.posecode: add clip "jumping-jacks" (this single directive drives the landing hero, playground default, and the captured GIF, all of which read this doc + SHOWCASE_CLIPS) - playground/src/main.ts: DEFAULT_PRESET = jumping-jacks so the playground greets visitors with the mocap clip; library order unchanged - docs/media/jumping-jacks.gif: re-render from the clip The clip directive stays visible in the editor, so the mechanism is transparent; deleting it drops back to procedural. Note: public/clips/*.fbx is gitignored (CDN-served); the prod asset must be named jumping-jacks.fbx to match SHOWCASE_CLIPS.
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Description
Re-enable the Mixamo jumping-jacks mocap clip as a pure eye-candy hook on the three primary marketing surfaces — landing hero, playground default movement, and the main README GIF — while every other preset and the sub-three README GIFs stay procedural. The procedural DSL remains the source of truth everywhere a visitor actually engages.
Why: A prior session had switched these surfaces to Mixamo clips, then reverted everything to procedural (
26a5e68, "procedural is the better showcase"). That left the landing hero jumping-jack looking bad — because it was the stiff procedural fallback. This PR brings back Mixamo only as the attention-grabber on the hero surfaces, delivered honestly through the realclip "<name>"DSL directive (clip-back). The directive stays visible in the editor, so the mechanism is transparent — delete that one line and it drops back to procedural.The machinery (
SHOWCASE_CLIPSmap, retargeting, landing hero wiring) was already intact from the earlier work; the revert had only stripped theclipdirective out of the document. So this is a minimal re-enable, not new plumbing.What changed
spec/examples/jumping-jacks.posecode— addclip "jumping-jacks". This single directive drives all three surfaces, since they all read this doc + the sharedSHOWCASE_CLIPSmap.playground/src/main.ts—DEFAULT_PRESET = jumping-jacks, so the playground greets visitors with the mocap clip on first open. Library list order is unchanged.docs/media/jumping-jacks.gif— re-rendered from the clip vianode scripts/capture-gifs.mjs jumping-jacks.Scope guardrails
deadlift,squat,lateral-raise) are untouched — they stay procedural.Reviewer notes
playground/public/clips/*.fbxis gitignored (CDN/storage-served). The deployed asset must be namedjumping-jacks.fbx(hyphenated, lowercase) to matchSHOWCASE_CLIPS; otherwise the hero silently falls back to procedural in production./clips/jumping-jacks.fbx(200) and play the mocap loop with no console errors; the default doc parses clean with no warnings.docs/superpowers/specs/2026-07-12-mixamo-hero-hook-design.md.Type of Change
Checklist
npm run typecheckpasses successfullynpm run buildcompiles without errorsnpm test) and all tests pass (243 passed)npm run eval) and all checks pass — n/a (no fidelity-invariant changes; eval invariants already covered bynpm test)node scripts/generate-content-pages.mjs— n/a (no new movement)