Difference Between Virtual Reality And Virtual Reality

MULTIMEDIA AND VIRTUAL REALITY

Virtual reality is an artificial environment that is created with software and presented to the user in such a way that the user suspends belief and accepts it as a real environment. On a computer, virtual reality is primarily experienced through two of the five senses: sight and sound.

The simplest form of virtual reality is a 3-D image that can be explored interactively at a personal computer, usually by manipulating keys or the mouse so that the content of the image moves in some direction or zooms in or out. More sophisticated efforts involve such approaches as wrap-around display screens, actual rooms augmented with wearable computers, and hap tics devices that let you feel the display images.

The crucial goal is coined in the term immersion. A virtual reality demonstration or production is successful if (even to a small or limited degree) during that presentation the viewer/ listener/ game-player has a sense of being apart from the world they are truly occupying and experience an immersion in an alternative environment. But this definition too requires some qualification. To this must be added that the sense of immersion must be mediated solely by the senses and not by mental association and ideas. I expect you - like me - have read a gripping novel on an airplane only to have glanced up and experienced the sensation of being dragged away from the fictional world of the book. If you recognize this, then you know those seconds of disorientation whilst adapting to the true reality. But this is an "immersion" which is mediated by the imagination. This way, the link with multimedia can be most clearly seen, since the all embracing task of creating an empirical alternative sense of reality must, by definition, involve media which impinge on more than one sense. Moreover, the true essence of virtual reality is in both creating convincing sensory inputs and a creating a realistic impression that one's own actions and behaviors impact and influence a virtual world in a realistic and convincing way. Simply put, we must be able to interact with this alternative

Many worry about the uses it will be put; fearing the human race will evolve into insouciant libertines gorged on a diet of ersatz sex! For those who dread what the future will bring to a human race given reign to experience its personal "fantasy realities", it's worth noting that the stereoscopic viewer - the nearest anyone could get to a virtual reality system at the time - fell into ill-repute in Victorian times due to the proliferation of pornographic material. It seems the engineering progress which has accompanied the presentation of virtual reality has not been matched by a commensurate progress in the fantasies which people hope to have sated by that technology! It is with some sadness that Gates (1995) predicts that concupiscence will almost certainly be the driving factor in low-cost virtual reality systems. So is the future for VR predominantly as a vehicle for entertainment? Is it going to be good for anyone but salacious epicures? Certainly the key concept of immersion does perhaps suggest its predominant applications exist more in the world of our fantasies than in the world of our duties. However there are a raft of applications where VR and multimedia concepts and technologies are beginning to contribute to our abilities to execute our jobs, perform new jobs or do old jobs differently. Not strictly pure VR or multimedia, three important categories are