Participants accommodation was measured while they viewed an image on either a laser-scanned or video-projected display.

Also envisaged is a separate stand that includes a video camera and a slide-out, human height projected display: this could allow people to train with other players, or even set up a virtual band.

It was operated by voice commands and projected its data on to the windscreen, using the same sort of head-up display system found in modern fighter jets.