procedural generation
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Procedural galaxy generation (a bit stuck...)

So, I'm currently creating a prototype for a new game where stars in a spiral galaxy need to be generated procedurally... and this is where the difficulty comes from.

If I was able to just generate all of the stars at once it would be as simple as using cos/sin to go in circles at ever increasing radius and spawn any number of stars I need, easy.

But in my case I need to do it one star at a time. Plus some previous stars can be deleted from the galaxy and I somehow need to fill-in the gaps.

...and it has to be data driven (i.e. I cannot store some cache values, but have to generate it purely based off the data of existing stars).

So, I'm trying to devise an algorithm or approach that could potentially help me accomplish something like that.

https://redd.it/12q9bjz
@proceduralgeneration
Generated from a seed at the center using 3-state CA & stylized with a gradient. Looks like a CPU under microscope
https://redd.it/12rbkjt
@proceduralgeneration