in news:3fe51ea3$1@news.povray.org Micheal (Mike) Williams wrote:
> And on a side note there is not IIRC a rendering engine that renders> NURBS directly.
Not a complete one but:
The paper
http://www.cs.utah.edu/vissim/papers/raynurbs/raynurbs.html
The code
http://www.acm.org/jgt/papers/MartinCohenFishShirley00/
Ingo