Maxwell Render for Blender
3D .NET engine for Windows, Linux, Mac
realtime 3d surface rendering library
Design and Display Happy Cube solutions
Advanced Render Manager
An object oriented 3D graphics API on top of OpenGL
Imprudence is an open source metaverse viewer project.
Pear3DEngine is a modern and modular 3D development framework
QCSS Player by Shuffle
XNavigator is a Virtual Earth browser and viewer for http://osm-3d.org
Multi-Language Wrapper Collection for the Irrlicht Engine
A 3D rendering / entity engine
Bruno's RAY Tracing Engine
An application for analytic geometry education