Virtual Reality

Virtual Reality (VR) is a video peripheric who hide the external environement to create a bulb with the environment create by computer. the movement of the head is reproduced in the virtual environment. it use the stereoscopique eyes technology. The futur of this virtual technology will use the stéréophonic sound and the body controller.

The Virtual Reality peripherique.
 Oculus Rift  create by Oculus VR founded by Palmer Luckey and Brendan Iribe. In March 2014, Facebook agreed to acquire Oculus VR for US$2 billion in cash and Facebook stock

 HTC Vive  i s being developed in co-production between HTC and Valve Corporation. It is also part of Valve Corporation's SteamVR project.

 PlayStation VR , previously known by the codename Project Morpheus, is an upcoming virtual reality headset produced by Sony Computer Entertainment. It is designed to be fully functional with the PlayStation 4 video game system. It is currently a prototype and has no confirmed release date although Sony has scheduled its launch for the first half of 2016.

 Samsung Gear VR  is developed by Samsung Electronics in collaboration with Oculus VR. A compatible Samsung Galaxy device (Galaxy Note 5 or Galaxy S6/S6 Edge), sold separately, acts as the headset's display and processor, while the Gear VR unit itself contains the high field of view lenses as well as a custom IMU for rotational tracking which connects to the smartphone via micro-USB. This IMU is more accurate and well calibrated with lower latency than internal smartphone IMUs such as used for Google Cardboard.

Equilibrioception
In humans, equilibrioception is mainly sensed by the detection of acceleration, which occurs in the vestibular system

When your parents drive and you see the landscape, you can have the nausea. this is based on the Equilibrioception.

The Virtual reality use the head movment in the computer to watch in 360°. When you play, your eye watch the movement, but your sens is motionless. your brain create the nausea to informe a problem.

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latency
With the same sense, your head turn in right but headset create a latency. your brain can’t interpret this information and create or upgrade nausea.