Imprudence is an open source metaverse viewer project.
Not your usual Architectural Modeler
A program that can be used to generate normal maps from images .
A 3D physics library for the Nintendo DS
Simple 3D viewer
Pear3DEngine is a modern and modular 3D development framework
Minimalist 3D Scenegraph Management Framework
Real-time 3D visualization of space
A Lightweighted Toolkit For Volume Rendering
https://github.com/horde3d/Horde3D