Wow. This was quite a ride. I only understood maybe 5% - but I was massively impressed.

Gem.

Flat earth version for comparison would be fun.

I wonder how this relates to the Perez All-Weather and Preetham sky models. Not an expert about that but I managed to implement those in the past and it was quite a fun project!

https://github.com/jscanvic/SkySim

SpaceEngine is also known for putting quite some effort into this; highly recommended: https://www.youtube.com/watch?v=_4TjdVAbXks

https://spaceengine.org/

Incredible personal website, great post. Super awesome content!

I saw this a while ago so it might not be totally related, but Sebastian Lague did a video on atmospheres for his planet generation experiment which was also very entertaining to watch [1].

There's something particularly entertaining on developing visuals and watching them come a reality — I hope at some point be able to experiment in this field.

[1] https://www.youtube.com/watch?v=DxfEbulyFcY