Indeed. You'd probably have to use the SuperPatch's trace function, tho.
Here's a macro (by Ron Parker) that might help. I don't remember if R has to
point from the surface or toward the surface, you'll have to test it.

//Returns the mirror vector of R at surface normal N
#macro v_mirror(R,N)
  #local nN=vnormalize(N);
  #local par=vdot( R, nN );
  #local perp=R-par*nN;
  vnormalize(par*nN-perp)
#end

Ken wrote in message <375E5F95.FBA2A85B@pacbell.net>...
>
>It will probably be easier to model using colored cylinders anyway.
>
>--
>Ken Tyler
>
>mailto://tylereng@pacbell.net

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