I actually got started on this one, be in an impure manner. I’d wanted to learn a bit about 3D modeling for several years, and got around to it last year. I fisrt used 3D SketchUp to get the basics. Since then, I have moved on to Blender 3D. It is on the back burner for the moment, but I have been using fractal generated images, and some fractal scripting for different elements of a small part of a world I am designing. I sent a few advance invitations which got accepted :-)