Thanks, I will try this later on today.

bongo


"Mike Williams" <nos### [at] econymdemoncouk> wrote in message
news:a3Z+xHA### [at] econymdemoncouk...
> Wasn't it Christopher James Huff who wrote:
> >In article <403a4c62@news.povray.org>,
> > "bongotastic" <cbl### [at] csdalca> wrote:
> >
> >>     Is there a way to do simple polygon/spline sweep rather than sphere
> >> sweep? By this, I mean sweeping a 2D object along a 3D spline. I feel
like
> >> it should be there but I did not see this in the docs.
> >
> >There is no built in primitive that does this. However, you can do it by
> >using the scripting language to build an appropriate mesh, and someone
> >may have done an include file for this already.
>
> Now that the web interface to news is back up, I can tell you that you
> can get my SweepSpline macro which does that from
>
>
http://news.povray.org/povray.binaries.scene-files/thread/%3C3fb73d9e%40news.povray.org%3E/
>
> (The trick for finding the message-id, and thereby writing more direct
> and shorter URLs seems to not be present any more, so you'll have to
> make do with this long threadwise URL.)
>
> For a polygon to work properly, you should make it a linear_spline and
> ensure that its control points take values that are multiples of
> 1/Vpoints. E.g. if you tell the mesh to use 20 points around the
> circumference, then you can set your control points to multiples
> of 0.05
>
> -- 
> Mike Williams
> Gentleman of Leisure

Post a reply to this message