Don't know about the bicubics but apparently the basic primitives are
not (tesselated that is).

Bob

Colin Doncaster <col### [at] bentanimationcom> wrote in message
news:37C59073.90ADBB50@bentanimation.com...
>     Basing my answer on the knowledge (which there is not a lot of
on povray in my
> mind as we speak) that povray tesselates everything into triangles
before render
> time, rendering shouldn't be a problem.  All that would be needed is
a nurbs
> tesselater into the pipeline, i haven't looked at the povray code
but wouldn't this
> be how the bicubic patches are handled or is it directly rendering
the bicubic
> surface (not tesselating it).
>
>   C.
>
> --
> Colin Doncaster
> bEnT Animation, Inc.
>
> "Baby Back, Baby Back, Baby Back RIBS!"
>
>

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