Wings3D
OVERVIEW
Wings 3D is a subdivision modeler written in Erlang, an open source programming language. It supports several modeling tools, lights, materials, and UV mapping. Instead of using a wire frame model, it uses a polygon model called WEDS (Winged-Edge Data Structure). This is a way to describe the geometry and topology of faces, edges, and vertices when three or more surfaces meet at a common edge.
LINKS
Official Site: www.wings3d.com
Wikipedia: Wikipedia Article