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procedural isometric map

I'm developing a procedural isometric map generator.

the whole generation and output to screen happens on the gpu with fragment shaders.

there is very limited data transfer between gpu and cpu.

only a few bytes like coordinates and frame number.

architecture:

• generate map from perlin noise in fragment shader.
• make changes to map in another fragment shader.
• render map to screen, rendering 1 large quad,
  fragment shader get's the tile id from map texture.
  then looks up the tile texture as position calculated by tile_id

map generation stage 1

map generation stage 2

render to screen