> From plotting the curves, my degree elevation looks correct. I am, however, a
> bit surprised that the thickness of the lathe is not always the same.
> Specifically, it changes strongly for small numbers. I would have expected that
> povray draws the exact same spline for all numbers of points.


Sorry. Scratch that part. I accidentally used cubic splines with the bezier
points... Obviously, they need more points to get close to the bezier curve.

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