For those who played the game Halo, I'm doing a fan-animation which involves a character turning Active Camoflagued. That requires an average skinned character slowly shifting to a clear refractive (and slightly reflective with a bit of glare) mesh which (when raytraced) will yield an object that kind-of warps the objects behind it. Those of you who have seen Die Another Day, the Aston Marton "Vanish" does the same effect (with Q's foot), only in Halo its a smooth transition, where in the Bond flick it kinda flickers out before becoming visible.