Nekar Xenos <go_### [at] yahoocom> wrote:
> I meant to replace my intitial suggestion with the second one. Is it not 
> possible to test intersection of a circle with an object? Please excuse me, 
> but I (obviosly)don't know how a raytracer is programmed. How is 
> intersection of a straight ray done? I was thinking of just replacing the 
> formula for the straight ray with the formula of a circle.

  How would a ray travelling in a circular path be any feasible way of
emulating variable ior? I'm not even sure it's physically possible to
have an object with an ior such that light travels in a circular path
through it regardless of the direction.

-- 
                                                          - Warp

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