GeoPatternLabReaction-Diffusion
Gray-Scott chemistry that grows organic spots, stripes and coral.
Two chemicals spread and react, spontaneously forming spots, stripes and coral (Gray-Scott).
About Reaction-Diffusion
Reaction-diffusion simulates two chemicals that spread and react, spontaneously forming the spots, stripes, coral and cell-like textures seen throughout nature (the Gray-Scott model). Choose a preset such as coral, mitosis or worms, tune the feed and kill rates, and export a high-resolution PNG of the pattern.
How to use Reaction-Diffusion
- Press Play. Start Reaction-Diffusion and watch the animation evolve in real time. Use Pause and Step to inspect it frame by frame.
- Adjust the rules. Use the side panel to change the parameters — the simulation responds live, so you can steer the emerging pattern.
- Explore variations. Press Randomize for a new starting point, or copy the share link to reproduce an exact result.
- Export. Pause on a frame you like and download it as a high-resolution PNG.
Frequently asked questions
What is Reaction-Diffusion?
Reaction-diffusion simulates two chemicals that spread and react, spontaneously forming the spots, stripes, coral and cell-like textures seen throughout nature (the Gray-Scott model). Choose a preset such as coral, mitosis or worms, tune the feed and kill rates, and export a high-resolution PNG of the pattern. It runs entirely in your web browser on GeoPatternLab, free and with no sign-up.
Is Reaction-Diffusion free to use?
Yes. Reaction-Diffusion on GeoPatternLab is completely free, with no sign-up or download required. Create as much art as you like and export it directly from your browser.
How do I download my Reaction-Diffusion artwork?
Use the export buttons in the toolbar to save your work as a high-resolution PNG image. Files download straight to your device.
Does Reaction-Diffusion work on phones and tablets?
Yes. Reaction-Diffusion is fully responsive and works with touch input on phones and tablets as well as with a mouse or trackpad on desktop.
Can I use Reaction-Diffusion artwork commercially?
Yes. Artwork you create with Reaction-Diffusion is yours to use for personal and commercial projects, such as wallpapers, prints, textiles, and teaching materials. See our Terms of Use for full details.
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