Tao3D is a programming language for real-time interactive 3D
PyMOL is an OpenGL based molecular visualization system
Program for drawing 3D surfaces from parametric equations
Sorry this project is no longer being supported
PHIGS (Programmer's Hierarchical Interactive Graphics System)
an interactive 3D viewing program
Pear3DEngine is a modern and modular 3D development framework
Real-time 3D visualization of space