Individual skill

render-stopmotion-hand-swatch-cycle

Assemble a stop-motion hand-swatch-cycle product-demo ad from a config — a sequence of still PLATES (one hand swiping a single-barrel product across a test surface, the barrel + swatch changing per plate while the hand, background, crop, and lighting stay locked) is PNG→mp4 loop-encoded at each plate's own stop-motion hold (fast motion frames 150–250ms, per-shade ~380ms, hero beats 1100–1800ms), concat-demuxed with HARD cuts into a silent master, closed on a Playwright HTML-rendered branded end card (serif tagline + sans subtitle + real logo SVG over a hero BG, never AI-rendered text), and muxed with a pre-sourced music track playing under the end card with a fade tail (no VO). This is the FREE deterministic assembly stage (loop-encode + concat-demux + end-card render + music mux); the master-anchor plate, shade plates, and end-card BG come from create-image-gpt-image-fal and the track from create-music-elevenlabs. Use for the stopmotion-hand-swatch-cycle format.

skills/video/render-stopmotion-hand-swatch-cycle/SKILL.md

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Nov 6, 2026
License
MIT

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# render-stopmotion-hand-swatch-cycle

Assemble a **stop-motion hand-swatch-cycle** ad from a config: a fast, tactile product demo where a
single hand swipes ONE product barrel across a test surface, and the shade of
the barrel AND the painted swatch stripe changes on every frame while the hand, background, crop,
and lighting hold still — cycling the variant family so the viewer self-identifies their match, then
a hero-pick payoff and a branded end card. The hand, background color, test surface, hero variant
and music are the recipe's user choices; this capability only assembles the plates it is given. This capability is the **FREE, deterministic assembly** —
the per-plate PNG→mp4 loop encode, the concat-demux, the end-card render, and the music mux.

`scripts/config.example.json` is the worked example — reference only, never the default (Kestrel
Art Supply "Swipe Your Color": an oil-pastel stick, a medium-tan hand, mustard-yellow background, round paper card; ~16.6s 1080×1920
9:16, ~24 cycle plates + finale beats + a 3s end card); `scripts/PIPELINE.md` maps every config
block to its source step and `scripts/README.md` documents the free assembly.
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