Xj3D is an open-source Java codebase for the X3D Graphics standard.
X3D is the open-standard format for 3D graphics scenes on the Web.
Java3d scenegraph editor
CSG for jMonkey
Simple CAD program
Virtual paper folding program
A raytracer that tries to combine simplicity with power.
A simple and easy to use render farm for Blender
3D tree generator
Not your usual Architectural Modeler
StereoWS developed by UCL-MSSL within the ProVisG project
A C++ library to easily create GUI-editable objects