Virtual reality means an imaginary world rather than a real world. It provide us the
experience without going to present location.
The concept of virtual reality is derived from the idea of virtuality and reality. So we can
say virtual reality means what human experiences virtual near to reality.
We know that the perception of the world is about the human senses. In the school era,
we studied that a human has only five senses touch, smell, hearing, taste, and watching.
These are the most common senses. But now we understand that a human has many
more senses, for example, a balanced sense. We have sensory input and also the
processing of some special sensory information which assure that our brain’s
information is attached to the environment.
Our brain interprets the data that we see as reality in real mixed-up sensory data. Our
world’s information depends on sensory sources. It is simple if your senses are getting
false information your reality experience would also be affected. If a fabricated reality is
shown to you you will accept it as genuine until you see it with your eyes. Anything that
would be referred to as a virtual reality.
Virtual reality exposes our senses to a digitally created environment in that we may
communicate in a number of ways.

How is virtual reality achieved?

Today the implementation of virtual reality is possible using computer technology but
we talking about historical reforms of virtual reality. There are a number of computer
systems working on this purpose, including headsets, omnidirectional, and treadmills.
These systems are used to simulate the human senses for the creation of illusion reality.
Human senses also brains developed to produce experiences that are filtered and highly
synchronized, and it is more difficult than it seems. In our casual routine, we can
analyze if a little wrong thing happening. Words like “immersiveness” and ‘realism’
were used in the discussion. Virtual reality experiences can be satisfying and joyful or
jarring or disturbing depending on the type of technological and conceptual issues. Our
physiology must be added while developing virtual reality. A video frame is not able to
match a human visual field. We have near to 180 visions we are not always worried
about our peripheral visions, we online notice when it has gone.

Why do we have virtual reality?

It seems like a lot of work. How can justify the advancement of virtual reality? The
portion of the entertainment is a must. Video games and immersive cinema are great
examples. The entertainment section earns multiple dollars. There are many more use
of virtual reality
Many other use of virtual reality, including

• Sport
• Architecture
• Entertainment
• Medicine
• The arts

Virtual reality can boost new discoveries which impact our daily life.
Virtual reality provides solutions to problems when risk is at its peak, costly, or
impracticable to execute the work in the real world. VR empowers us to take
hypothetical risks in the world to gain experience, that is why we are training fighters
and doctors for these purposes. VR is focusing on education and productivity, reducing
the cost of technology, and rise sales. Virtual reality produces a significant change in the
world it makes technology more human.

Types of virtual reality

• Non-immersive virtual reality
• Full immersive virtual reality
• Semi-immersive virtual reality
• Collaborative virtual reality

1. Non-immersive virtual reality

The environment is not directly interacting with the human. Virtual experience in which
computers control the activities and characters with the software.
For example, when you are playing some games on the computer such as Warcraft, you
can control the characters and their activities while playing the game because they have
their own attributes and animations.

2. Full immersive virtual reality

It assures a realistic experience in the virtual world. It will make you feel that you are
present in the virtual world physically and everything happening to you is real.
This is high-cost demand for helmets costumes gloves body connectors with senses
detectors.
For example, you are playing the game ‘The Shooter’ where you are in a room you can
see the virtual world with the help of helmets and can move with the senses detectors
you can jump shoot and defend yourself from the opponent. When you try to move your
hand it will also move in the game because your senses are connected with the
detectors.

3. Semi-immersive virtual reality

It took place between non-immersive and fully immersive. Basically, it is used for
training purposes. It can form a 3D space or virtual environment where you can move
about on your own either through a computer screen or a VR box headset.
It is used to show a fake interface to train people.
For example, when a pilot start training he faces a fake interface in the airplane for
training which shows him a real scene but it is a screen.

4. Collaborative virtual reality

Collaborative virtual reality ties a group of people from different locations in a virtual
environment in the form of 3D and projected characters.
For example, the game ‘PUBG’ is a game where people contact each other while staying
in different locations. They came together in-game with the help of collaborative VR.

Conclusion

The discussion was about what virtual reality (VR) is virtual reality is the technology
near to the real world but it is a fake environment. The creation of a virtual world and
the presentation of it and our senses seem in the way though are actually known as
virtual reality. It is a technically difficult effort that takes into consideration human
vision and mental ability and employs a wide range of technologies to achieve this
purpose. It is used for serious and risky purposes. Technology become more low-cost
and reachable. We are very thankful to virtual reality which changes the world where
we have an environment to contact other humans for entertainment purposes for
serious work. Then the discussion was about the types of virtual reality where we
discuss the four types and their examples. We focused on the expertise of its types.