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.
VRG3D is a library that uses G3D and implements a minimal set of features required to run applications written with G3D in projection based virtual reality environments, such as Caves and Fish Tanks.