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Virtual Reality (VR) literally makes it possible to experience anything, anywhere, anytime. It is the most immersive type of reality technology and can convince the human brain that it is somewhere it is really not. Head mounted displays are used with headphones and hand controllers to provide a fully immersive experience. With the largest technology companies on planet earth (Facebook, Google, and Microsoft) currently investing billions of dollars into virtual reality companies and startup, the future of virtual reality is set to be a pillar of our everyday lives. 

Virtual Reality 

A realistic three-dimensional image or artificial environment that is created with a mixture of interactive hardware and software, and presented to the user in such a way that the any doubts are suspended and it is accepted as a real environment in which it is interacted with in a seemingly real or physical way.

HOW DOES IT WORKS ? 

In order for the human brain to accept an artificial, virtual environment as real, it has to not only look real, but also feel real. Looking real can be achieved by wearing a head-mounted display (HMD) that displays a recreated life size, 3D virtual environment without the boundaries usually seen on TV or a computer screen. Feeling real can be achieved through handheld input devices such as motion trackers that base interactivity on the user’s movements. By stimulating many of the same senses one would use to navigate in the real world, virtual reality environments are feeling increasingly more like the natural world. Below, we explore some of the key components to behind this system.

Key Components in a Virtual Reality System

PC (Personal Computer)/Console/Smartphone

Virtual reality content, which is the what users view inside of a virtual reality headset, is equally important as the headset itself. In order to power these interactive three-dimensional environments, significant computing power is required. This is where PC (Personal Computer), consoles, and smartphones come in. They act as the engine to power the content being produced.




Head-Mounted Display

A head-mounted display (also called HMD, Headset, or Goggles) is a type of device that contains a display mounted in front of a user’s eyes. This display usually covers the user's full field of view and displays virtual reality content. Some virtual reality head mounted displays utilize smartphone displays, including the Google Cardboard or Samsung Gear VR. Head-mounted displays are often also accompanied with a headset to provide for audio stimulation.

Input Devices

Input devices are one of the two categories of components that provide users with a sense of immersion (i.e. convincing the human brain to accept an artificial environment as real). They provide users with a more natural way to navigate and interact within a virtual reality environment. Some of the more common forms of virtual reality input devices include:
• Joysticks
• Force Balls/Tracking Balls
• Controller Wands
• Data Gloves
• Trackpads
• On-Device Control Buttons
• Motion Trackers/Bodysuits
• Treadmills
• Motion Platform