Am 26.11.2012 11:31, schrieb kurtz le pirate:

> I need your help to clarify some things. On Povray Doc about Lathe,
> there is 4 types of Spline :
>      linear_spline | quadratic_spline | cubic_spline | bezier_spline
>
> In the "PostScript Lange Reference" from Adobe, curves in eps are 'cubic
> Bezier'
>
> In one side, i have Cubic Bezier, in other side Cubic Spline and Bezier
> Spline.
>
>
> I suspect bezier_spline(pov) is the 'same' things as cubic_spline(eps).
> Are you agree with this?

Absolutely. As a matter of fact, what POV-Ray calls "cubic_spline" and 
"bezier_spline" are just different ways to specify 3rd-order polynomial 
(i.e. cubic) splines.

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