g.VRsys - gtec's Virtual Reality research system

g.VRsys is a complete Virtual Reality (VR) research system that consists of a VR PC running XVR for 3D simulations, a projection wall with a 3D projector and 3D shutter glasses with infrared emitter. g.VRsys can also be combined with a physiological analysis system. The VR scenarios can be programmed easily with XVR and are shown with a standard Internet Explorer. Physiological signals can be logged simultaneously in MATLAB and can be analyzed in real-time to influence the VR.

The development of a complete Virtual Reality application is a complex activity that requires good knowledge of several time-critical tasks. Computer graphics, real-time physics and network programming are examples of fundamental building blocks that need to coexist in many modern Virtual Reality systems. Each of these building blocks constitutes a research field on its own, and a vast literature exists on techniques and algorithms to address specific problems. Still, from a more high level perspective, a complex framework can only achieve optimal performance through tight integration and balanced design. The development of a Virtual Reality application can turn out to be a very lengthy and difficult process, where fundamental design choices and their implications should be carefully considered. The choice of the right tools is also very important, as common everyday practice shows how difficult is still to put together a successful and robust system.

g.tec hence designed together with VRMedia, a complete VR package that allows you easily run VR applications in your lab. The system consists of a PC running XVR, a 3D projector, shutter glasses for the 3D effects, a mobile projection screen, a tracker and a link to biosignal acquisition and analysis systems.