VRforCAD developed in Java and Java3D API, combines two systems: Computer-aided design (CAD) system and Virtual Reality system with its special equipments for visualization and manipulation. See more at: http://www.vrforcad.org
The VR_MUSICIEN project is based on the Chromium plateform and allows user to easily port their OpenGL code in a Virtual Reality Environment. This library especially computes the asymetric frustum for multiuser headtracking stereovision.
osgJuggler is a library suite that makes developing computer graphics appications for virtual reality easier. osgJuggler is a framework that allows you to develop a scene with OpenSceneGraph and view it on any platform supported by VRJuggler.