>                                    I began wondering if it might be
> possible to render a cylindrical view of the towers, but not from the
> inside out, instead, from the outside (a certain distance) towards the
> center.

I see that you already solved your problem, so just for the record:

I once had the same need. My first solution was to patch povray. Then I
came up with the following more portable one: Use a cylindrical camera,
shift it along the axis of rotation away from the object and use two
conical (with height=radius) mirrors to bring the rays of vision back to
the object.

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