Blender is a free and open-source 3D computer graphics software for Windows, Linux and Mac OS. Using this you can create animated films, visual effects, art, 3D printed models, interactive 3D applications and video games. It is completely free and released under GPLv2+ licence. Blender 2.66 is now available for download for all users.It comes with some important features.
What’s new in this release for Blender?
rigid body physics simulation
dynamic topology sculpting
Cycles hair rendering
support for high pixel density displays
much better handling of premultiplied and straight alpha transparency
a vertex bevel tool
a mesh cache modifier
new SPH particle fluid dynamics solver
Download Blender 2.66