Pixel-art-style Conway's game-of-life using a tile shader in WebGL

Implementation of Conway's game of life cellular automata with a retro-style shader. Added as example on webgpgpu Github.

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[smaller version for mobile]

Sketch of WebGL implementation:

• Underlying cellular automata runs Conway's game of life
• States as game tiles: new cells: small blue; live cells: blue; died: skulls
• Life diffuses out coloring nearby areas
• A single RGBA texture stores the game state. We render to/from this texture as a framebuffer.
• Each color channel in [0,1] can be mapped to a [0,255] byte value
• The green channel stores the game of life state
• The blue channel stores the diffusing field
• The red channel outputs a tile ID value that is passed to a tile shader to render the game