I just checked out the Amazon page for Discipline. I think I'll make that my next read, looks like a great book. Thanks for the recommendation, and very cool that you got to meet the author!

Have you looked into quaternions? That's a good way to produce 3D fractals. I took a computer graphics course once where one of the class projects was to make a raytracer, and I spent some time playing around with raytracing quaternions. It amazes me how relatively simple looking mathematical equations can produce such endless beauty!