Open Source Solid Modeling CAD
X3D is the open-standard format for 3D graphics scenes on the Web.
Xj3D is an open-source Java codebase for the X3D Graphics standard.
Free 3D Mobile CAD
Support for jgeom, the java geometry graphics library using NURBS
A library to create anaglyph images with Java
View M3G File Contents
The X3DV Module Suite is a free set of Netbeans modules to code in X3D