Here is a question I really want to know the answer.
How is that :
Done in unity ?
I mean, after a bit of extensive research : ( example of what I found )
https://www.redblobgames.com/x/1843-planet-generation/
https://experilous.com/1/blog/post/procedural-planet-generation
I checked and succesfully managed to get a hexasphere running on a project.
Checked the Catlike coding tuto on procedural meshes (https://catlikecoding.com/unity/tutorials/procedural-meshes/icosphere/)
Checked some gamedev math ( mainly trigo, angles etc ... ) ( all of Freya Holmér math serie for some math notions I was missing : https://www.youtube.com/watch?v=MOYiVLEnhrw )
And a lot of other places & experiments .
From what I get so far : It look awfully like a latitude longitude mapping. But how do you project the grid on the sphere without having to store each "square" in memory ? How do you manage to have diffèrent résolutions on the equator & the poles and everything in between ?
You can cleary see where they made the different resolution. especially around the poles plus with a 4 quarters seperation of the sphere.
What i would like to know if possible :
Where to find information / code to create something like that ?
How hard is it to implement ( on the math side I mean ) ?
How do you position de building on the surface of the sphere to align with the grid depending on the position on it ( the maths behinds are fine, I can figure the rest out by myself )
Any kind of ressources that could help me or explain to me how it's done is welcome !
That's the main points I would like to know, i'll experiment after and share a public project for whoever want to do something like that later.
Thanks a lot for your help and your time !
