http://reset-game.net/?p=284
http://madebyevan.com/webgl-water/
http://prideout.net/blog/
http://devmaster.net/posts/3100/shader-effects-glow-and-bloom
http://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/
http://www.shadertoy.com
