Virtual reality (VR) is a technology which allows a user to interact with a
computer-simulated environment, be it a real or imagined one. Most current virtual reality
environments are primarily visual experiences, displayed either on a
computer screen or through special
stereoscopic displays, but some simulations include additional sensory information, such as sound through speakers or
headphones. Some advanced,
haptic systems now include tactile information, generally known as
force feedback, in medical and gaming applications. Users can interact with a virtual environment or a
virtual artifact (VA) either through the use of standard input devices such as a
keyboard and
mouse, or through
multimodal devices such as a
wired glove, the Polhemus boom arm, and
omnidirectional treadmill. The simulated environment can be similar to the real world, for example, simulations for pilot or combat training, or it can differ significantly from reality, as in VR games. In practice, it is currently very difficult to create a
high-fidelity virtual reality experience, due largely to technical limitations on processing power,
image resolution and communication bandwidth. However, those limitations are expected to eventually be overcome as processor, imaging and data communication technologies become more powerful and cost-effective over time.
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(VR)
1. <
application> Computer simulations that use 3D graphics and devices such as the
data glove to allow the user to interact with the simulation.
2. A form of network interaction incorporating aspects of role-playing games, interactive theater, improvisational comedy, and "true confessions" magazines. In a
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