check out touchdesigner, it has the ability to go deep into GLSL and python but is also quite approachable. i feel like it is generally regarded as a node base

check out touchdesigner, it has the ability to go deep into GLSL and python but is also quite approachable. i feel like it is generally regarded as a node based graphics programming environment, but would argue that it is really just an arbitrary real time data handling system that happens to have a lot of built in graphics nodes.