Some interesting WebGL references and cool demos. Live GLSL shader editors and reference docs Shadertoy GLSL Sandbox Shdr Editor WebGL v1.0 cheat sheet WebGL v1.0 spec by Khronos OpenGLTutorial.org OpenGL state change cost comparison sheet Cool Shadertoy demos Mario World 1-1 in a Fragment Shader! For the idSoftware fans – Wolf3D! Basic Montecarlo implementation The Wiseau Puppet Show