My new iPhone app: EasyPlay - easy music gesture controls for your iPhone or iPod touch What you're seeing is a WebGL port of Auld's amazing 1K demo, Chocolux from to WebGL. Chocolux is a real-time recursive GPU raytracer using four spheres. There are only 2 triangles on screen; all of the ray tracing happens in the fragment shader! I adapted Auld's code to run in the OpenGL ES 2.0 subset that Web