Projects video from the computer onto a mirror, which reflects the image onto the back of a large screen forming the workbench. The first workbenches oriented the screen horizontally. Subsequent implementations of the idea have tilted the screen as much as thirty degrees. VR Responsive Workbench Use of LCD shutter glasses and a stereo projection mode can create a convincing three-dimensional effect. Most workbenches employe the use of tracked glove or wand systems for navigation.
Some implementations use head tracking to further refine the stereoscopic effects.
The system must correctly determine the two users' positions from the tracking hardware and compute four images - one for each eye of both users. A hardware solution is employed to correctly correlate the stereo pairs with the correct timing on the shutter glasses. Images are interleaved in an L1 L2 R1 R2 manner. A single wall of a real room is used for the display. Teleport Requires two SGI Onyx Reality Engine 2 machines at each end.