Virtual reality refers to interactive simulations that immerse users in virtual environments through technologies like head mounted displays. It has applications in movies, video games, and scientific visualization. Types of VR technologies include Project Natal, which uses voice and motion controls; Cave Automatic Virtual Environments, which uses multiple projectors to immerse users; and the Nintendo Wii, which uses simplified motion controls. While the future of VR is uncertain, it is evolving in entertainment through more immersive games and movies that incorporate physical user interactions. VR also has advantages for applications like product design and medical imaging, but faces challenges from usability issues, lack of standardization, and potential health effects.

1. Written by
NUSRAT AZEEMA
MCMS - 3
VIRTUAL REALITY (VR)
 What is Virtual Reality?
Virtual Reality refers to a high-end user interface that involves real-time simulation and
interactions through multiple sensorial channels. Virtual Reality is often used to describe a wide
variety of applications, commonly associated with its immersive, highly visual, 3D
environments. The development of CAD software, graphics hardware acceleration, head
mounted displays; database gloves and miniaturization have helped popularize the concept. In
1988, commercial development of VR began. In 1991, first commercial entertainment VR
system "Virtuality" was released. In 1992 a method of the showing and testing of scientific
visualizations called the CAVE was created.

2.  Applications
Movies - Virtual reality is applied in 3-D movies to try and immerse the viewer into the
movie and/or virtual setting and environments.
Video Games - Virtual reality is evident in video games. Now you can physically interact
with a game by using your body and motions to control characters and other elements of
the game that years ago people would only imagine.
 Types of VR Technology's
1-Project Natal
It’s a new piece of technology that is undergoing development now for the Xbox
360. Project Natal proposes a new way of interacting with games, and indeed with
computer systems in general. They propose that there system will not require any
keyboards or controller. It will function by the use of the user's voice and motions as the
method for interacting with the system.

3. 2-Cave Automatic Virtual Environment
 The term “CAVE" refers to any virtual reality system that uses multiple walls with
multiple projectors to immerse users in a virtual world. The CAVE is used for visualizing
data, demonstrating 3D environments, and virtually testing component parts of newly
developed engineering projects.
3-The Nintendo Wii
 The controller is basically a simplified version of the "virtual reality glove." Both the
Wiimote and the Wii Fit offer users another way of interacting with their virtual
environment without having to wear any bulky equipment.
 Future of Virtual Reality Conclusion
The future of virtual reality is hard to predict but one thing’s for sure the world of entertainment
is going to see a lot more of it. Virtual reality is starting to evolve into video games and movies.
The Nintendo Wii and Project Natal are great examples because the user is performing physical

4. movements to interact with the game. Also many more 3-D movies are being made and maybe in
the near future they will all become more immersive than the “Experience in Rome” movie
ADVANTAGES OF VIRTUAL REALITY
1- User line
2- User can see and even feel the shaped surface under his/her fingertips.
3- Flight simulators and games.
4- Biomedical Engineering the projects mentioned are use of virtual reality for viewing of
X-RAY's and MRI‘s.
5- Representation and 3-D lighting, modeling for resource management.
 DISADVANTAGES OF VIRTUAL REALITY
1- VR in medical treatment is going through some growing pains.
2- There are limitations with VR devices as well in regards to usability.
3- Lack of standardization of hardware and protocols.
4- Most troublesome are the side effects it can induce, like confusion, faintness
and nausea.