3D .NET engine for Windows, Linux, Mac
A simple and easy to use render farm for Blender
PHIGS (Programmer's Hierarchical Interactive Graphics System)
Gimpel3D - 2D/3D Stereo Conversion Editor
Pear3DEngine is a modern and modular 3D development framework
Real-time 3D visualization of space
Multi-Language Wrapper Collection for the Irrlicht Engine
Game engine supporting many 3D/2D formats and graphic effects