A Julia set whose c walks the boundary of the Mandelbrot cardioid, so the fractal continuously changes shape rather than being zoomed into — held right on the edge where it is about to shatter into dust. Orbit-trap coloured, so the interior has structure too.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and psychedelic.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.