Art of Illusion 2.8
Art of Illusion is a free, open source 3D modelling and rendering studio. Many of its capabilities rival those found in commercial programs. Highlights include subdivision surface based modelling tools, skeleton based animation, and a graphical language for designing procedural textures and materials. It is written entirely in Java, and should be usable on any Java Virtual Machine which is compatible with Java 5 or later: Mac OS X, Windows, Linux and Unix.
Download: Art of Illusion 2.8