It looks easy, but it could be complicated if you deal with real geometry instead of displacement map and texture.
So I decide to make a procedural basketball with just 13 million polygons in Houdini. Just because …
First I create a sphere, then I create the black lines by using a boolean on the sphere. After that I resample the black lines. On the surface is a scatter of 50000 points that promote colors to the sphere, blur this out to get the nice bubble effect.
After anything is merged together and grouped with two different Mantra materials directly on the polygons, render it out and finish.
This is not really usable, it should bake the textures, displacement and normal maps out, but I was to lazy for that
It was a nice try …