Virtual Reality is the idea of experiencingan environment while not being physically there.
This is all done by usingcomputers to make a simulated environment and use VR glasses also calledHead-mounted display to experience it. The goal of VR is to make it asimmersive as possible meaning it must feel realistic, this is done bysimulating as many senses possible such as vision, hearing and touching themore the better. The VR glasses have sensors in them that rotate with your headso that you can look around in the VR environment.
The limits we are facing andis stopping us from experiencing the best VR environment are computer power,available content and motion sickness. There are multiple headsets in Virtual Reality currently, the main ones beingCardboard with no hardware, so the user must use his own phone for the VR.There’s GearVR where the user uses his phone, but the Gear has its ownapplications and has for interaction the Gear VR side pad, home button andgoing back or the controller using Bluetooth. The last main headset is PC basedthat have tracking involved. The HTC VIVE is anHMD that uses two tracking stations to mark a playing area andeverything in that playing area is tracked from movement to interaction withthe two controllers, and there’s the Oculus which has the tracking of the headand recently receive controllers for more complex interactions.Since VR became an interesting and hot topic more companies are applying it.VR is being applied to education,healthcare, military, entertainment, engineering and much more.
These are allexamples of how VR is applied to the companies. In VR medical care an example helps peoplewith their phobia by doing exposure therapy and simulate various stimulirelated to their phobia. You can have sessions with the patient and teach themhow to control responses to their situations.Virtual Reality and Augmented Reality are becoming a big part of the growingmarket, a good example of this is Pokémon Go with their AR way of interaction.It was aimed at people around the worldand it became a big success.
The difference between VR and AR is thatwhen in VR the user feels like he is moved to a whole virtual environment, whenusing AR the user doesn’t move and he stays in his environment and can seevirtual items and objects in the real world that can be interacted with.WithVR the user’s eyes are covered using a HMD so that he can visualize a differentworld that makes the user feel immersed in it, but you must be cautious aboutcrashing or bumping into objects in the real world. In AR you will seesimulated objects in the real world. In other AR apps you can see the inside ofyour house as a place to scan so that you can place some virtual objects like tvscreens, furniture’s for measuring and fitting.
Most ways of AR are on phonesthat interact with QR codes by using the phone camera.