stbenge wrote:
> You cannot give an object a variable index of refraction, sorry. But you 
> *can* stack many transparent objects onto each other, each having a 
> different ior. It might work for the mirage effect. The render times 
> using this method are slooow, even on faster computers.

I've found when stacking translucent objects with internal media, I need to be REALLY
careful about separating surfaces, or I get spotty artifacts.

Dan

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