   3d app programming tutorials?
  Hi, I''ve spent the whole day searching for info on programming modelers. I found a couple of good articles and so far have a program with 4 viewports and load 3ds format, so really its just a model viewer atm. Is there any sites on the net with 3d app programming info? I cant find any.Thanks 
  I have some advice instead of tutorials.If you can already render stuff on windows, that's a good start.Build up on that, for example create a vertex selection tool,then add features as you think of what you need.It's fairly straightforward to write a simple 3d modeler, but just takes lot of time to create a production-ready modeler.   [edited by - Nik02 on August 2, 2003 6:15:43 AM];  Thanks Nik02, Thats the thing, i know the basics so i was wondering if there were tutorials or info on making a vertex selection tool for exampleAlso, to anyone that knows anything about 3d apps, is it recommeded to use the open inventor api or would that kill performance?Thanks again 