Recently I've been interested in porting Shadertoy shaders, especially game of life and reaction-diffusion kind of systems that use feedback.
One thing I'm wondering is how to deal with the feedback. I'm trying to port this shader "Vicious Fingering"
, and running into problems. I tried to figure out how to deal with the feedback by looking at some jit.gl.pix examples like jitter-examples/gen/pix.game.of.life and examples/gen/reaction.diffusion.color.world. those use a combination of [zl reg] and jit.gl.slab, but I haven't been able to get that to work for this one. What am I doing wrong?