Tiny but powerful single file wavefront obj loader
Coin3D Qt GUI Library
Perl bindings to the Modern OpenGL API
3D .NET engine for Windows, Linux, Mac
Get as many FPS as you need and amazing effects by rendering HTML/CSS
3d lib
An object oriented 3D graphics API on top of OpenGL
Pear3DEngine is a modern and modular 3D development framework
Minimalist 3D Scenegraph Management Framework
Megalui: 2D/3D OpenGL & C/C++ Library for Scientific Visualizations
A 3D rendering / entity engine
A simple web interface for Blender, for rendering animations..