> Personally, I'm not convinced it's a good idea. Doing NURBS right is > hard (particularly mating trim curves) - people would be better off > using Rhino & exporting triangles as appropriate. Would NURBS really be > in keeping with the intent of Aztec? Would effort be better spent in > making modelling tools? I agree, making modelling tools would be a much more advantageous thing to do. As Xander says, doing proper nurbs curves is hard. HAving other nurbs curves on nurbs surfaces, and performing fillets, blends and trims is a nighmare, and not something I'd like to do anytime soon. I would much rather have more functional modelling tools that help people actually make stuff. I have still yet to see anything nice made with Aztec, and that says to me the tools just aren't up to scratch. A good kick in the pants for me to stop playing around with low level things like I always do to make them 'nice', and to move me back on doing somrething productive. However, If someone is really keen to add in Nurbs, then I wont stop them, as it would be cool, but I just don't think it will be that useful. Phil