Matthias Rarey wrote:

> Hi,
>
> I started interfacing Povray to my 3D viewer and I really
>
> enjoy it! Most objects are quite easy to build with CSG
>
> except one: a ribbon in 3D space.
>
> What I would like to do is using a prism but instead of
>
> giving two heights, I would like to use 3D spline to sweep
>
> the shape along a defined curve.
>
> Is there an easy way to model such an object in Povray?
>
> Thanks in advance for any help.
>
> Matthias



Chris Colefax's Spline macro would do this quite nicely.

Steve

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