blender3d.org :: Blender 2.40

> Blender has had another long development cycle resulting in a release
packed with rewrites, new features and improvements. The major additions this release are the Character Animation rewrite, the added Fluid Dynamics system, improved editing and rendering of Particle Based Hair, and the Modifier Stack.

I never could figure out the Blender interface, but it’s a great free 3D modelling suite, with lots and lots of advanced features and plugins. There’s even quite a few online books and tutorials for those wanting to try the software.