How Immersive VR work?

 How Immersive Virtual Reality work?

The device send the signals to our brain and we can experience similar to the real life.
To make something immersive theoretically, if we could ever get a machine to fully connect to and work with our nervous and muscular systems, that's all we would really need. As technology improves and brain computer inter-phases become more advanced.

The signal which sense on our body to feel like a real world are described below:

1. Vision
   Eye tracking typically works by continuously measuring the distance between the pupil center and the reflection of the cornea, the distance changes dependent on the angle of the eye. An infrared light, invisible to the human eye, creates this reflection while cameras record and track the movements.Computer vision algorithms are able to deduce from the angle of the eyes where the gaze is directed. Still some progress to be made in the field of view and quality of the screen.
   
   
2. Hearing
   The hearing is also close to reality as you can hear depth and orientation of the sounds. The quality of sound and headset may be a factor but you actually adapt really fast so it becomes unnoticeable. It's like watching a movie with subtitles which bothers at beginning then we eventually forget about it, gets adopted.
   
   
3. Physical contact
   Full body suit can make the trick, specifically if you add some electric impulse. Of course depending on the intensity of the impact.
   
   
4. Locomotion
   Even if some startups are working on some cool projects such as Virtuix Omni. It gives a nice way to walk infinitely, but that's it. We actually can't kneel or move your body too much with such a device so it may take us further to full immersion than closer. Something like the Xenoma e-skin shirt are really interesting tech.
   Changing the way we move in VR might bring us closer to immersion rather than trying to reproduce the way we walk or move our body.
   
   
5. Touching
   One of the biggest challenges will be textures as every object has a different temperature, granularity and consistency. Things like vibrations, electric impulses.
   
   
6. Tasting and Smelling
   Same thing about the textures here it will probably be one of the hardest things to implement as we are in VR. Personally, I don't see any practical way of doing it, most likely it will be about messing with the brain and perception.
   
   
7. Gravity
   To feel realistic or real world feeling from artificially created environment, things fall down, does go up if we throw it that is because of gravity on real environment. likewise, to feel more interactive on immersive virtual reality needs gravity-based objects.

To summarize, some games/experiences are doing it really well using vision and hearing in certain situations make you feel somewhere else. For sure full immersion will be a nice mix of brain manipulation and equipments. Let's give it some decades, in the decade of WEB 3.0 gonna be really exciting.