I extended the solar program from before....I now basically have a movement engine for any kind of 3 dimensional system, which is pretty cool. It uses the unit circle as the LookAt vector and the same functions to move about the coordinate system. I think I'll use it for the interactive graph idea. I also added some orbits with Points. I couldn't get the lighting to work right now, as you can see, the sun isn't lit up and part of the first planet's orbit is lit....I don't know why. I plan to use material and lighting on the solar system for next week. Maybe I should start with a simpler system for starting out lighting.