All GPU, all the time

Well, maybe just some of the time. Here are some resources that may prove handy for those of you* that are interested in playing around with GLSL shaders for use in WebGL or Unity or whathaveyou.

MeshLab

Mostly oriented towards viewing/fixing/tweaking geometry for 3D fabrication (think .stl files), MeshLab also has a snazzy feature that will render your object with one of a selection of built-in GLSL shaders. The extra cool feature is that it allows you to see the code for each shader, so you can play with them on your own.

CS 525 - GPU Programming

Our very own UIC EVL offers a course on GPU programming on alternating years. Although the course is not focused solely on graphics programming, the course blog has quite a bit of interesting--I daresay helpful--information for people who are trying to learn more about GLSL shaders.