So I worked on the procedural grid thing and it starts with galactic XYZ, or I did, and I gave it a seed to get me lost in the void; random gx, gy and gz. You then get a PR# from position, and check to see if there's a star or something there to locate up to half a ly plus or minus XYZ.

When I get to my planet, I'm looking to see how far the point in my grid is from the surface of the planet and looking at all of the edges to the three points next in the grid. We connect all these edge points to build triangles.