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Augmented Reality and Virtual Reality

VR (Virtual Reality), on the other hand, is quite different from AR. In fact, the two only share one thing in common – computer based simulation. As mentioned above, the simulation provided by VR needs to be of such good quality that it is indistinguishable from reality. Theoretically, this is impossible. Therefore, for practical purposes, VR only means a degree of approximation, sufficient for a user to get a ‘live’ experience of the simulated environment. Moreover, VR is interactive and responds sensorially, in ‘real-time’, and just as in real-life e.g. in a VR application, imagine you are in a forest, getting ready to burn a pile of cut-down bushes and dry leaves. You douse the pile with gasoline. A fox is keenly watching you from a nearby place. Then you throw a lighted match-stick on to the pile… the system will respond immediately showing a strong, quickly spreading fire burning on the pile, its shape occasionally altered by the blowing wind… and as in real-life… the fox (scared by the fire), must run away? – and it does! The system may allow you to change the direction, speed and alteration in the speed of the blowing wind, angle of throw of the match-stick etc. and the system will respond with the new results immediately! Thus, VR enables one to experiment with real-life scenarios and get sufficiently accurate results just as though he/she were in the desired environment/ place, in person, but saving time, travel & resource costs etc.

AR (Augmented Reality) & Virtual Reality (VR) applications (apps) are both based on computer simulation of real-life scenarios and environments. The simulation will bear a high degree of resemblance with whatever is being depicted from real-life, either graphically or sensorially. The term ‘sensorially’ is broader than ‘graphically’ because it means all things perceptible to our senses I.e. graphics, touch, sound, voice, smell and so on. Usually, the degree of resemblance with the original has to be many times higher and more accurate in the case of VR than in AR apps.