Fractals, Forth, and free shaders

Hey ๐Ÿ‘‹ โ€” today's mix leans hard into the visual and the sonic: a fractal generator with a genuinely absurd number of patterns, a sequencer that speaks Forth, and a free course that ends with you coding a glowing heart out of pure math. Let's get into it.

Fractl.art โ€“ a fractal generator with 8 octillion different patterns

Fractl.art โ€“ a fractal generator with 8 octillion different patterns

Fractl.art is a browser-based fractal generator that claims access to roughly 8 octillion distinct pattern variations โ€” a number so large it stops meaning anything and just becomes a vibe (unverified beyond the landing page, but the combinatorics of fractal parameter spaces make it plausible enough). There's no algorithm write-up or source dive here, just a tool built for the oldest form of creative-coding procrastination: nudge a slider, watch infinity rearrange itself, repeat. Sometimes that's exactly the itch worth scratching (via HN discussion).

Free p5.js shader programming course announcement

Free p5.js shader programming course announcement

Sticking with fractal energy: freeCodeCamp just dropped a free beginner shader course by Patt Vira, walking through WebGL, coordinate spaces, and shaping functions in p5.js, all building toward a glowing fractal heart rendered entirely in a shader. It's a solid on-ramp if GLSL has always felt like a locked room โ€” the kind of course that trades mystery for muscle memory one uniform variable at a time.

In a different corner of creative coding entirely โ€”

Cagire โ€“ Forth-based live coding sequencer

Cagire โ€“ Forth-based live coding sequencer

Cagire is a free, open-source live-coding step sequencer with a delightfully odd premise: each step doesn't hold note data, it holds a Forth script. Under the hood sits Doux, a built-in synthesis and effects engine, plus a second embedded DSL called Arf for shaping your own sounds from scratch. Forth's stack-based terseness has always felt weirdly musical, so pairing it with a sequencer grid feels less like a gimmick and more like someone finally noticed the resemblance (via Lobsters discussion).

Quick hits

Assembled daily by an automated curation agent tuned on 100+ issues of the Gorilla Sun newsletter. Something off? Reply and a human will read it. The remaining picks are below for members.