A COLLOQUIUM (611)
Under the Guidance of : Submitted by:
Dr.Manju Gupta Kapil Goswami
Head of the Department (1109814061)
Institute of Management Studies, Noida
1. INTRODUCTION & OBJECTIVE
2. DESCRIPTION OF THE VIRTUAL REALITY
3. APPLICATION AREAS WITH EXAMPLES
Virtual reality is an artificial environment that is
created with software and presented to the user in
such a way that the user suspends belief and accepts
it as a real environment.
On a computer, virtual reality is primarily experienced
through two of the five senses: sight and sound.
The simplest form of virtual reality is a 3-D image that
can be explored interactively at a personal
computer, usually by manipulating keys or the mouse
so that the content of the image moves in some
direction or zooms in or out.
The main objective of Virtual Reality is to create
real environment of imaginary objects which is
easy to operate and understand by the user or a
person like: - FLIGHT SIMULATORS.
DESCRIPTION OF VIRTUAL
1. What is the Concept of Virtual Realty??
2. Why Virtual Reality is needed??
3. How does Virtual Reality Architecture work??
1. What is the Concept of Virtual
Virtual Reality refers to a high-end user interface that
involves real-time simulation and interactions through
multiple sensorial channels.
Most virtual reality environments are primarily visual
experiences, displayed either on a computer screen or
through special stereoscopic displays, but some
simulations include additional sensory
information, such as sound through speakers or
In 1950s, flight simulators were built by US Air
Force to train student pilots.
In 1965, a research program for computer
graphics called “The Ultimate Display” was laid
In 1988, commercial development of VR began.
In 1991, first commercial entertainment VR
system "Virtuality" was released.
2. Why Virtual Reality is needed??
Virtual Reality is able to immerse you in a
computer-generated world of your own making:
The interior of human body.
With VR, you can explore any uncharted territory of
the human imagination.
Types of Virtual Reality
A. Immersive VR-
A type of VR in which the user becomes immersed
(deeply involved) in a virtual world. It is also a form of
VR that uses computer related components.
Immersive VR Components
i. The Head-Mounted Display (HMD) –
was the first device providing its wearer with an
A typical HMD houses two miniature display screens
and an optical system that channels the images from
the screens to the eyes, thereby, presenting a stereo
view of a virtual world.
As a result, the viewer can look around and walk
though the surrounding virtual environment.
ii. The CAVE (Cave Automatic Virtual Environment) –
A room with projections on all walls, floor and ceiling.
The users wear shutter glasses to get a 3D view of
The users are able to move and control the
environment with some kind of input mechanism.
iii. Glove :-
that can sense the position of the finger which can be
used to control and interact with the virtual images
B. Augmented VR-
Integrate the computer-generated virtual objects into
the physical world which become in a sense an equal
part of our natural environment.
3.How does an Architecture of Virtual
Reality System work??
Description of above architecture
There are mainly 4 components as follows:-
1. Input processor:-
Control the devices used to input information to the
computer. The object is to get the coordinate data to
the rest of the system with minimal lag time.
Keyboard, mouse, 3D position trackers, a voice
recognition system, etc.
2. Simulation processor:-
Core of a VR system.
Takes the user inputs along with any tasks
programmed into the world and determine the actions
that will take place in the virtual world.
3. Rendering processor:-
Create the sensations that are output to the user.
Separate rendering processes are used for
visual, auditory, haptic and other sensory systems.
4. World Database :-
Store the objects that inhabit the world,
Scripts that describe actions of those objects.
Virtual Reality Modeling Language
Standard language for interactive simulation within the
World Wide Web.
Allows to create "virtual worlds" networked via the
Internet and hyperlinked with the World Wide Web.
VR models can be viewed by Netscape or IE with a
Characteristics of Virtual Reality
Modeling Language (VRML)
Not a programming language like c++ or java.
Descriptive (rather than procedural) like HTML.
File formats contains human readable and editable
Software packages available in
Virtual Reality Studio
Sense8 World Tool Kit (WTK)
Autodesk Cyberspace Development kit
Application Areas where Virtual
Reality is used:-
Practice performing surgery.
Perform surgery on a remote patient.
Teach new skills in a safe, controlled environment.
Easy to modify
4. Education & Training