Hey :), full code isn't up yet but I can share the color pattern: http://thebookofshaders.com/edit.php?log=200806194314 http://thebookofshaders.com/edit.php?lo

Hey :), full code isn't up yet but I can share the color pattern: http://thebookofshaders.com/edit.php?log=200806194314 http://thebookofshaders.com/edit.php?log=200806194314 The technique is called "sine puke", and it works by starting with a gradient (in this case a rainbow) and warping the domain when drawing that gradient by sine functions repeatedly (check the for loop) In the fluid demo I blend new frames with the previous so you get this slower, softer pattern