Art Of illusion
-Art of Illusion is a free, open source 3D modelling and rendering studio. It is written entirely in Java, and should be usable on any Java Virtual Machine which is compatible with J2SE 1.4 or later.
(this program is fabulous!)
-Model • shade • animate • render • composite • interactive 3d
Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.
-MakeHuman (c) is completely free, innovative and professional software for the modelling of 3-Dimensional characters. The features that make this software unique are the new tetra-parametric GUI (c) components and the Natural Pose System (c), for advanced muscular simulation. Using MakeHuman a photorealistic character can be modeled in less than 2 minutes; MakeHuman is released under an Open Source Licence, and is available for Windows, Mac OS X and Linux.
-Google SketchUp is software that you can use to create, modify and share 3D models. It's easier to learn than other 3D modeling programs, which is why so many people are already using it.
-is a scenery generator for Windows and the Mac OS. Terragen is free for personal non-commercial use.
-trueSpace7.6 The Complete 3D authoring software - FREE!
-Wings 3D is a subdivision modeler inspired by Nendo and Mirai from Izware.