Individual skill

scenario-motion-loops

Use when someone wants seamless looping motion graphics for video in their own brand colors: animated backgrounds behind titles, filler for the dead seconds between AI shots, bumpers, transitions or shape animations, built as code and rendered to MP4, optionally with their mascot, product or character from Scenario composited over the loop. Keywords: seamless loop, motion background, canvas animation, motion graphics, loop seam, motion blur, H.264 export, alpha composite.

skills/scenario-motion-loops/SKILL.md

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Nov 8, 2026
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# Scenario Motion Loops

## Overview

A loop is a pure function of time, drawn with Canvas 2D in one HTML file. Nothing is generated, so
nothing warps or flickers, one color change rebrands it, and it renders at any size.

- `draw(ctx, w, h, t, P)` paints the frame at `t` seconds. Every period divides the 12 s loop, so
  the frame at 12 s is the frame at 0 s.
- [scripts/loop-template.html](scripts/loop-template.html) holds the helpers (`M.*`), the palette
  (`P`) and `tile(...)` registration. Tiles from the Motion Loops exploration on scenario.com (80
  loops, each with its code) run in it unchanged.
- [scripts/render-loop.mjs](scripts/render-loop.mjs) checks the page, renders stills or the MP4, and
  checks the encoded file.
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