Functions much like shadertoy
- header file with the basic types, functions, and defines for simple GLSL style shaders
- Implement a shadertoy style interface.
- Implement a mode with color
- Make command line arguments available to shaders
- time; a simple usage of the TIME variable
- twinkle; spots appear and fade over time
- snow; spots fall down the screen
- matrix; classic letter-rain effect
- checker; simple checkerboard test pattern
- rand; simple PRNG test
- cogol; Conway's Game of Life as a shader
- elementary; an elementary cellular automaton