methods of haptic feedback

In order to simulate the macroscale aspects of movement and touch, Virtual Reality (VR) systems must simulate the relative resistance that virtual things would impose on motion by parts of the body such as hands and legs. For instance, if one lifts a virtual cube, then one's hand and arm should sense the relevant resistance to make it possible for the virtual cube to seem real. Haptic resistance may be transmitted from a computer to one's body though micropressure machines (tiny pistons, inflatable bubbles, etc) powered by mechanical motors, magnetism, hydraulics, air, or other media. These micro-pressure machines can be integrated into gloves, electronically-wired clothing, or gyroscopic armatures. Direct resistance from 3D fields might be possible in the future, but remains experimental. Touch and motion based computer-to-human communication will become widespread with scientific advances, but it currently delays behind interaction through sight and hearing. Neovision has further info on virtual reality.

Interaction between people and computing systems built on sound is another vital part of virtual reality. Conveniently, creating a realistic sound setting involves fewer scientific challenges than simulating 3D images or realistic tactile and motion interface. A good surround-sound audio system can give high performance computer-to-human sound transmission to match things and events in Virtual Reality. For sophisticated uses, "aural ray tracing" can function to simulate the effects of multiple connections between sounds and surfaces in the virtual world. See also: Virtual Tours Eau Claire, Wisconsin reports more information regarding these technologies.

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