Post #2870344
2026-04-16 12:37 UTC
OK, so what's "reaction-diffusion" then? In brief, it's a mathematical model of a chemical reaction that produces patterns similar to many found in nature. For more info, see https://www.karlsims.com/rd.html and/or https://mrob.com/pub/comp/xmorphia/index.html.
Replies (2)
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@matt_zucker@mastodon.social 2026-04-16 12:37
Making reaction-diffusion patterns amounts to solving a system of partial differential equations (PDEs) – the Gray-Scott model – that describe the simulated chemical reaction. The formula might look like Greek, but it's not too exotic from a math/coding standpoint.
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@bazzargh@hachyderm.io 2026-04-16 14:50
@matt_zucker@mastodon.social you can also get nice effects varying the parameters across the surface; here using a grayscale image to drive it https://hachyderm.io/deck/@bazzargh/116092480577520472