AR (Augmented Reality) & Virtual Reality (VR) applications (apps) are according to computer simulation of real-life scenarios and environments. The simulation will bear a high degree of resemblance with whatever has been depicted from real-life, either graphically or sensorially. The phrase 'sensorially' is broader than 'graphically' because it means as much as possible perceptible to our senses I.e. graphics, touch, sound, voice, smell and the like. Usually, just how much resemblance together with the original needs to be often times higher plus much more accurate in the case of VR when compared to AR apps.
Look at the videos of your 100-metre dash from your recent Olympic Games. The initial commentary may be in English and if so, because it is, that video are not very here you are at french. Either changing the commentary to French or adding suitable French sub-titles could make it more fun with a French audience. This, in simple terms, is how AR finds its opportunity - augmenting the original with more useful info - in our example, substituting French for English and therefore, making this content more significant towards the French-speaking. As the second example, take into account the video capture of your road accident. Two cars collide on the highway the other is badly damaged. Police officers may not be in a position to pin-point which of the two drivers was responsible for the accident by merely viewing the video. If, however, the video was pre-processed by an AR application that added mass, speed and direction info. in the cars towards the video, then, usually the one responsible could be established with all-around, maybe, hundred-percent certainty.
VR (Virtual Reality), however, is pretty distinctive from AR. The truth is, both only share a very important factor alike - internet based simulation. As pointed out above, the simulation furnished by VR must be of these high quality that it must be indistinguishable from reality. Theoretically, this can be impossible. Therefore, for practical purposes, VR only means a diploma of approximation, sufficient for any user to acquire a 'live' experience with the simulated environment. Moreover, VR is interactive and responds sensorially, in 'real-time', and simply as in real-life e.g. inside a VR application, imagine you have a forest, planning to burn a pile of cut-down bushes and dry leaves. You douse the pile with gasoline. A fox is keenly watching you against a nearby place. You then throw a lighted match-stick on to the pile... the machine will respond immediately showing a solid, quickly spreading fire burning on the pile, its shape occasionally altered by the wind flow... and as in real-life... the fox (scared from the fire), must back off? - also it does! The device may allow you to change the direction, speed and alteration within the speed of the breeze, angle of throw with the match-stick etc. and the system will respond with all the new results immediately! Thus, VR enables one to experiment with real-life scenarios and have sufficiently accurate results equally as though he/she were within the desired environment/ place, personally, but saving time, travel & resource costs etc.
VR applications consume awesome amounts of computing power. In comparison, AR applications are certainly not in any respect demanding on resources - AR applications run comfortably on cell phones, tablets, other hand-helds, laptops and desktops. Very probably, you're using several AR apps on the Android/ iOS device, right this moment, without knowing it! (e.g. Wordlens, Wikitude World Browser etc.).
The explanation for the difference is VR apps first need to correctly interpret whatever action an individual performed and after that 'make out' the right response that this real environment would return, detailed with animated graphics, movements from the right directions, sounds and so forth and also, much like correct physics, math and then for any other sciences involved. Most of all, 'latency', or even the response time through the application, should be sufficiently high. Otherwise, the user, who has come with understandably high expectations, is sure to get so completely put-off that he/she might burst by helping cover their a string of unprintable words on the effect "to hell using this dumb thing!'. To avoid such failures, a pc (or network of computers) equipped with unusually powerful mobile processors, high-fidelity graphics software, precision motion trackers and advanced optics, is necessary. Understanding that explains, why.
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