What is Virtual Reality?
Virtual reality or virtual realities (VR), also known as immersive multi media or computer-simulated reality, is a computer technology that replicates an environment, real or imagined, and simulates a user’s physical presence that environment in a way that allows the user to interact with it.
In other words, Virtual reality (VR) means experiencing things through our computers that don’t really exist. It is believable, an interactive 3D computer-created world that you can explore so you feel you really are there, both mentally and physically.
COOL ! isn’t it?
Virtual Reality Is Actually:
- Believable: You really need to feel like you’re in your virtual world (on Mars, or wherever) and to keep believing that, or the illusion of virtual reality will disappear.
- Interactive: As you move around, the VR world needs to move with you. You can watch a 3D movie and be transported up to the Moon or down to the seabed—but it’s not interactive in any sense.
- Computer-generated: Why is that important? Because only powerful machines, with realistic 3D computer graphics, are fast enough to make believable, interactive, alternative worlds that change in real-time as we move around them.
- Explorable: A VR world needs to be big and detailed enough for you to explore. However realistic a painting is, it shows only one scene, from one perspective. A book can describe a vast and complex “virtual world,” but you can only really explore it in a linear way, exactly as the author describes it.
- Immersive: To be both believable and interactive. VR needs to engage both your body and your mind. Paintings by war artists can give us glimpses of conflict, but they can never fully convey the sight, sound, smell, taste, and feel of battle. You can play a flight simulator game on your home PC and be lost in a very realistic experience of virtual reality.
360 Degree Video – Virtual Reality
360-degree VR (360-degree virtual reality) is an audiovisual simulation of an altered,augmented or substituted environment that surrounds the user, allowing them to look around them in all directions, just as they can in real life.
360-degree VR can be used for many purposes other than entertainment. The virtual reality technology can be used in most kinds of training that involve a physical environment, including pilot and driver training (as well as actual piloting or driving), surgery, and undersea and space exploration via remote-control robots.
There are a number of types of 360-degree VR, including live and previously captured video or real-time, real-time rendered 3d games, and pre-rendered computer graphics imagery (CGI).
See this to get a hint of what a 360 degree – VR video is like:
Some Virtual Reality Devices (Headgears):
- HTC VIVE
- OCULUS RIFT
- SONY PLAYSTATION VR
- SAMSUNG GEAR VR
- GOOGLE CARDBOARD
- MICROSOFT HOLOLENS
- META 2
- RAZER OSVR HDK 2
- ZEIES VR 1 PLUS
- AVEGENT GLYPH
- FREEFLY VR HEADSET
These and many other VR headsets are available . You can google them for detailed info.