CAVE (Cave Automatic Virtual Environment)

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The CAVE is a theatre that sits in a larger room . The outside room must be free of light at all times while using the CAVE. The walls of the CAVE are made up of rear-projection screens, and the floor is made of a down-projection screen. High-resolution projectors (the University of Illinois uses an Electrohome Marquee 8000) display images on each of the screens by projecting the images onto mirrors which reflect the images onto the projection screens.

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(c) S. Kuntz

The user will go inside of the CAVE wearing special glasses to allow for the 3-D graphcs that are generated by the CAVE to be seen. With these glasses, people using the CAVE can actually see objects floating in the air, and can walk around them,http://cb.nowan.net/blog/tag/virtual-reality/

Panoscope (c) Laval Virtual

getting a proper view of what the object would look like when they walk around it. This is made possible with electromagnetic sensors. The frame of the CAVE is made out of non-magnetic stainless steel in order to interfere as little as possible with the electromagnetic sensors. When a person walks around in the CAVE, their movements are tracked with these sensors and the video adjusts accordingly. Computers control this aspect of the CAVE as well as the audio aspects. There are multiple speakers placed from multiple angles in the CAVE, giving one not only 3-D video, but 3-D audio as well.

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