"-s0da-" <ske### [at] msncom> wrote in
news:3f7ca8fd$1@news.povray.org: 

> If I'm right, you want to make a race track type loop?  up up up and
> around? 

Yup, a race track loop, exactly.
 
> if so, a simple bezier patch might work.  If you use Moray, it has a
> totorial
> on how to make bezier patches...and in the tutorial, they show you how
> to twist one into a twisted ribbon type shape.  If the array was big
> enough length
> wise, and you played with it enough, I'm pretty sure you could get a
> loop, instead
> of just a twisting ribbon.
> 
> might want to download the software (if you don't already have it),
> and check it out.
> 
> http://www.stmuc.com/moray/

Ok, thanks, I don't have Moray.  I'll check it out, but I think it's 
shareware.  I'll see if I can make a bezier patch mathematically first.

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