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80-second animated mosaic film with fish and stitched snail

by Dan Fein (@dfeinition) · Sep 22, 2026

@claudeai This mosaic is 13,081 tiles, all drawn and animated in code by Opus 5.5, with no image files. The stars' reflections hatch into 22 tiny fish 😌 We're going to need a bigger bowl. https://t.co/DNPJ8us1js
— Dan Fein (@dfeinition) Sep 22, 2026

Prompt

The author shared part of the prompt.

Make an 80 second square animated film as a single HTML file, using WebGL2 and plain JavaScript, with no libraries and no image, font or audio files. It should look like a glass and gold leaf wall mosaic whose tiles were never glued down, so they can lift, flip, fly and click back into place. Figures are flocks of tiles, so a fish swims by its tiles swimming.

Prompt by @dfeinition, from their reply

Category: Art
Stack: WebGL
From the author: Not the exact original prompt; asked to add story on top.
On X: 1.4K likes · 152K views · 464 saves

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