What’s Virlink?

Virlink is a new site focusing on access to distributed Virtual Reality (VR) applications through the internet. Humans interact with computers in various ways.  Even just viewing a computer screen and typing on a keyboard is one such interaction.  However, human-computer interactions only qualify as virtual reality when they are immersive, interactive and intelligent in nature.  Virtual reality is an immersive computer-simulated environment within which humans interact with computer-generated objects in a manner governed by sufficient computer intelligence that the interaction with porno italiano seems realistic.
A virtual reality environment must engage key human senses with enough accuracy to give participating humans a sense of being in a real setting.  With the limits and norms of current technology, this generally entails image displays that span a large portion of the human field of vision with reasonable clarity, high-fidelity three-dimensional sound, and human-computer interaction based on head and hand position, motion, and configuration that updates more than fifty times per second.  More comprehensive haptic interaction that engages movement of the rest of the body and engages senses other than sight, hearing, and touch are generally above today’s minimum criteria for virtual reality. These advanced functions may, however, become standard for virtual reality in the future.
To qualify as virtual reality, objects within the computer-simulated environment should also conform with reasonable accuracy to the physical and biological laws that apply to their real counterparts.  This is necessary for the computer-simulated elements to appear real to the higher-order functions of the human brain, not just lower-level perception.  It is not sufficient for a cube to just look like a cube, it must also behave like a cube with respect to the conservation of matter, gravity, momentum, and other physical laws. This becomes more ambitious with more complex physical or even biological elements within a computer-generated environment.  Simulating an organism is more difficult than simulating a cube.
There are three categories of virtual reality based on the relative mix of computer-generated vs. real-world elements:
Category #1: Pure Virtual Reality – is an immersive virtual environment composed entirely of computer-simulated elements with the exception of the participating humans.  The apparent form of the participating human may even be transformed in nature.  In the purest form of category #1 virtual reality, the participating human interacts only with the computer, not with other humans or real elements.
Category #2: Mixed Virtual Reality, sometimes abbreviated as “Mixed Reality” or called “Augmented Reality, is either: a real-world environment with substantive superimposed and interactive virtual elements; or a computer-simulated environment with substantive superimposed and interactive real elements other than the participating humans.   Mixed reality environments may include only a few virtual elements, but these elements should be realistic and cognitively significant for the human participant.
As examples of category #2 virtual reality, fighter pilots can view computer-generated maps superimposed on the skyspace or ground.  Also, surgeons can perform surgery with computerized medical images of interior body structures superimposed on the patient’s body.  Other mixed reality applications may be primarily virtual with few real elements.  For example, a computer screen can display (and allow rudimentary control from) the motion of a human hand via an instrumented glove.   Mixed reality environments must have proper alignment of the real and virtual elements and also rapid responses to avoid dysfunctional temporal lags and spatial gaps.  Large-scale mixed reality environments also demand long-range trackers within large spaces or sophisticated multi-directional treadmills to give participants the illusion of long-range movement.
Category #3. Telepresence Virtual Reality – is the application of virtual reality technology to enable humans to be in one real-world location and yet function as if they were in a second, remote real-world location.  Telepresence differs from pure or mixed reality in that the virtual reality may be transparent to the participating human.  Virtual reality becomes a means, not an end.  It serves as a way to “be” in another location without traveling there.   The participating human only consciously interacts with real world environments. Category #3 virtual reality is useful for teleconferencing, telemedicine, virtual vacations, virtual home tours, and exploration of hazardous environments (underwater, space exploration, etc.).
The strictest definition of virtual reality includes only Category #1 applications.  The broadest definition includes Category #2 and Category #3 applications as well.

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