Export a looping video

For a clip that repeats without a visible jump, for example a website header or a social snippet.

Steps

1. Turn Seamless loop on in section 05 · Loop. With it off the clip ripples but snaps back where it repeats.
2. Pick a Loop duration. That is the length of the clip: 2–4 s for a "breathing" loop, 6–10 s for a relaxed background.
3. In section 09 · Export set frames = Loop duration × fps, for example 6 s × 30 fps = 180 frames, so exactly one loop is captured.
4. Choose a resolution for the target (the presets cover portrait, landscape and square).
5. Choose a background: a solid colour or an image. The mask, if you use one, is baked in.
6. Press Record animation, then Download video.

Play it as a loop

A video file does not loop by itself. On a web page use the attributes:

<video autoplay muted loop playsinline src="my-loop.mp4"></video>

Settings that work

Use case	frames	fps	Duration	Seamless loop
Social snippet	90	30	3 s	on
Website header loop	180	30	6 s	on
Long background video	600	24	25 s	off
Test / preview	30	15	2 s	either

Short loops at moderate resolution are roughly 50–500 KB.

Good to know

• The format follows the browser: MP4 (H.264) in Safari, iOS and Chrome 126+, WebM (VP9/VP8) in Firefox.
• A larger export resolution shows more of the noise field at the same feature size, because the scales are per pixel. To keep the composition of the on-screen canvas, divide scale x / y by the same factor.
• The seamless loop does not depend on the resolution or the renderer; progress 1 is exactly progress 0.
• Instead of a file you can embed the live animation: Embed in a web page.