From Martin Wengenmyer:
Cheetah3D is a lean, fast and elegant 3D modeler and raytracer for Mac OS X with an easy learning curve. It offers many tools from polygon editing over advanced subdivision modeling to boolean operations and Beziere splines.
It also offers many common file loaders and exportes like .3ds, .dxf, .obj, .3dmf, sia etc.
What's new in this version:
- improved spline tesselator (3x faster)
- many other small bug fixes and improvements