> That's probably a fine spline, but is it a cubic spline or a completely
> different type?

I asked some spline questions a while ago because I think, Pov spline { }
behaves in unexpected ways that are hard to control. By reading Chris
Colefax's spline toturial I found that "cubic splines" are a broad class of
spline types. None of them seems to completely resemble the Pov spline { }
but I don't know for sure.. Someone told me, Pov is using "natural cubic
splines".. That's all I can tell.. With all respect to the Pov-team, I think
Colefax has done a better job, but it's alright for a beginning.


Hugo

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