Johannes Hubert wrote:

> Sorry Ken, but you got your maths wrong here.
> The spheres are scaled and translated correctly to give the expected result.
> Actually, they *do* give the correct and expected result!
>
> I agree with GrimDude: It is a problem of perspective.
>
> The camera is so close to the outer sphere, that the near part is
> perspectively magnified so much, that it appears larger than the X/Y-plane
> "equator" which lies farther back (and where the sphere really *do* meet at
> the edges as expected.
>
> I attached a screenshot from Moray where I recreated the scene and then
> marked the actual equator with red and the *percieved* outer edge with
> yellow (front, side, top and perspective view).
>
> So long,
> Johannes.
>
>  [Image]

Yep, it is a matter of perspective and visual abberation. A picture is worth a
thousand words:    <your spheres sliced in half>

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