Blender is a 3D graphics application released as free software under the GNU General Public License.
It can be used for modeling, UV unwrapping, texturing, rigging, water and smoke simulations, skinning, animating, rendering, particle, and other simulations, camera tracking, non-linear editing, compositing, and creating interactive 3D applications, including games.
Blender is available for a number of operating systems, including Linux, Mac OS X, and Microsoft Windows. Blender's features include advanced simulation tools such as rigid body, fluid, cloth and softbody dynamics, modifier-based modeling tools, powerful character animation tools, a node-based material and compositing system and Python for embedded scripting.