Sorry about the picture. I figured out how it would be affected. By the way, this is JUST FANTASTIC!! It works better than I could have imagined. You can't go wrong with calculus, it cleans things up nice and neat. I am looking into snell's law once again to try and figure out why the probe is shaped that way. Did you want to give it a handle or is it that long for a reason?

I had just recently figured out what IBL and AO was all about. I realized that it is good for the main purpose of indirect light or Global illumination. Once I had the "overall light" I could add extra lights to simulate Direct Illumination, like the sun or a lamp. Can IBL be used for Direct illumination? How can this probe make it easier and more efficient (Direct illumination that is)?

Could you by chance simulate the same effect in 3ds max or Blender. The diagram would be helpful.

Sorry about all of the questions, it is just so very interesting.