After doing some reading and stumbling across this thread

http://news.povray.org/povray.general/thread/%3C4a85a542@news.povray.org%3E/

this seems like exactly what I'd like to do.
Unfortunately I am unable to define a bezier spline using #declare. It seems I
can only specify linear, quadratic or cubic/natural.

So I started experimenting, trying to recreate the profile I want using a cubic
spline, with no success. I seem to end up having kinks in the spline no matter
what I try.

With a bezier spline it was easy; I just opened up Inkscape, plotted my profile,
and exported to a .pov file. But Inkscape seems to only work with beziers, as
oppose to cubic splines.

Does anyone have any advice?

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