CyberVRML97 for C++ is a development library of VRML97/2.0 applications. Using the library, you can read and write the VRML files, set and get the scene graph information, draw the geometries, run the behaviors easily.
GSL is aimed at providing a tool for rapid graphical programming. GSL is an object-oriented script language with graphical support. Its goal is to provide an easy way to specify worlds and at the same time enable the coding of behaviours of those worlds.
Infinite Space is a 3D game engine. Its primary features include OpenGL support, thread-based objects, integrated AI scripting, multiplayer support and broadband voice communications.