Jerome M. Berger wrote:

>       Or else he used a bounding box to make the middle sphere visible from
>the mirror but not the camera

        Yup.  That's what I did.  I put the bounding sphere for the
red sphere around the *reflecting* sphere.  This works (as you saw)
but I am not entirely happy with it because it clobbers the shadow.
It would be cool for the invisable sphere to cast a shadow as well
as being reflected in the mirror.
        BTW, that was done in (official) Povray 3.1, no fancy MEGA
tricks.


Pete

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