although it's becoming clearer to me how unscientific it is and thus i lose a bit of my interested in it. Still, would be awesome to reproduce something like this...
i'm starting to think it's not using any kind of gravity at all, rather just the tendency of a liquid to form droplets... all the more amazing if that's all it took to arrive at something that looks like galaxies... even if he probably must have done a lot of intentional tweaking to optimized it for that i imagine...
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@matrixsasuke @matrixsasuke well if you want to scientiffically accurately reproduce something like this, maybe blender isn't the place :comfyxdsweat: all the simulations blender provides are simplified enough to be fast for a household computer to reproduce.

I saw the video and i think that as a simplified way to show how galaxy formed is good, i would have added something to make the galaxies move more away from the center tho.

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@hideki blender is used in science, but usually only as a step after the calculation to visualize...
@hideki what boggled my mind is that a certain professional astronomical piece of software (gadget2) also uses smoothed particle hydrodynamics (SPH), so i though maybe the blender algorithm isn't so bad after all...
Especially since I also have to run the supercomputer code on a household computer, so there's not really a performance disadvantage (particle sim in blender written in c and parallel as far as i can tell).
I bought a computer with big RAM (64GB) and a strong CPU. Furthermore, a homecomputer seems to have an advantage over supercomputers, which is low communication overhead...
@hideki ah i think the reason this (SPH) works is because galxies and interstallar space consist of gas, so maybe i should use gas instead of liquid in the simulation...
https://academic.oup.com/mnras/article/345/2/561/1746970
(Also i just noticed the blender simulation took the guy 24h)
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