I would like you present a small and handy tool I've made during developing my game. It's called obj2coll Collision Converter. Basically, it takes obj file and make col file that can be loaded by Newton.
Features:
- - Supported tris, quads and polygons,
- Convex and Concave objects (autodetecting),
- Few usefull settings (scaling),
If you are interested, just take a look on my blog (really sorry for advertising). It contain compiled app, a part of source, and small note how to implement deserialization withon your app: http://madman07.ugu.pl/index.php?show=004_cont