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

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/

"None" <Non### [at] onca> wrote in message
news:Xns### [at] 204213191226...
> Anyone know the best (i.e. fastest rendering) way to make a seamless
"loop-
> the-loop" track?

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