HRM 3440 Chapter Notes - Chapter 10: Electronic Visualization Laboratory, Virtual Reality
23 May 2018
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HRM 3440 Chapter 10 Notes – Summary
Introduction
• Virtual reality simulations require special interface devices that transmit the sights,
sounds, and sensations of the simulated world to the user.
• These devices can also record and send the speech and movements of the participants
to the simulation program, enabling users to sense and manipulate virtual objects much
as they would real objects.
• This natural style of interaction gives the participants the feeling that they are immersed
in the simulated world.
• For example, an auto manufacturer can use virtual reality to help it simulate and design
factories.
Interface Devices
• To see in a virtual world, often the user wears a head-mounted display (HMD) with
screens directed at each eye.
• The HMD also cotais a positio tracker to oitor the locatio of the user’s head ad
the direction in which the user is looking.
• Using this information, a computer generates images of the virtual world—a slightly
different view for each eye—to match the direction that the user is looking, and displays
these images on the HMD.
• Many companies sell or rent virtual reality interface devices, including Virtual Realities
(www.vrealities.com), Amusitronix (www.amusitronix.com), I-O Display Systems
(www.iglassesstore. com), and others.
• The Electronic Visualization Laboratory at the University of Illinois at Chicago introduced
a room constructed of large screens on three walls and the floor on which the graphics
are projected.
• The CAVE, as this room is called, provides the illusion of immersion by projecting stereo
images on the walls and floor of a room-sized cube (http://cave.ncsa.uiuc.edu).
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