Your welcome. I was trying to use something simple.If you render it to a movie you will see how it works.However, the render isn't the same as the final shader(probably a logical explanation). Haven't really been able to look at it.I checked out supermixer then decided to do that later. The complex supermixer ought to really boggle(LoL). Actually, probably not that bad just have SO many other things to learn right now. That example(Mark's proximity.car) doesn't appear to be using proximity. I think the idea is to use proximity w/ it to mimic his result on the web site. I have to say I have been amazed. After only a few hrs between hex and carrara and being new to computer 3D and both programs I have been able to model and set scenes from scratch w/ some nice detail and effects. Now granted...all the time will be in the details, but it's still pretty amazing.The really hard part so far is being patient for final renders :)

No need to think outside the box....
    Just make it invisible.