LEO_BOLOGNA <l_o### [at] yahooit> wrote:
> My question is: in povray does splines (linear,quadratic or cubic) permit to
> define only curves or surface also?

  A spline is by definition a curve.

  You can use splines to create eg. meshes (that isn't even too difficult,
just requires some SDL coding). You can also just use bicubic patches which
use bezier splines.

-- 
                                                          - Warp

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