This Houdini tool i've made helped me alot when i've worked on 0xUniverse browser crypto-game. My main task, along with classical modeling and supervising outsource artists, was to create a range of 3d planets models from witch programmers will be able to generate over a million unique collectable planet variations. Modeling such amount of content by hand was impossible, and Houdini was a perfect tool for such task. I've continued developing this tool , created different planet types, asteroids, moons, lava and crystal planets. Then i've brought all this stuff to unity, created custom shaders using ShaderGraph and URP, and come up with nice results you can see =) The tool is 100% procedural, there is no hand modeling, and coloring planets vith vertex colors are also automatical. The only thing made by hand is simple disc model for Black Hole.