hardgeus writes: "A lot of people (including me) have said that what the Open Source world needs is a 3D counterpart to GIMP. Well, it looks like it's finally here: The OpenFX Open-Source 3D modeling, animation and rendering suite . It has a renderer and raytrace engine, NURBS support, kinematics-based animation, morphing, a plugin API - and it's under the GPL. Currently only for Windows, but they're working on a Linux and FreeBSD port."
There's this and Blender - what other options are there?