Shader School - An introduction to GLSL shaders that runs in your web browser
Very sad that none of the fragment shader experts have written a book focusing on generative art. The Book of Shaders is very basic.<p>How to create something like this (including sound!) while thinking on a per color x,y basis is mind boggling.<p><a href="https://www.shadertoy.com/view/XsfXD2" rel="nofollow">https://www.shadertoy.com/view/XsfXD2</a>