Post on 22-Nov-2014
description
Abin SanthoshAbin Santhosh Bibin John BabyBibin John Baby Gigy MargaretGigy Margaret Midhun Mohan AMidhun Mohan A Pratyush SolankiPratyush Solanki Smija SurendranSmija Surendran
Presents…Presents…
History , Technology & Future
04/08/23 Group 1 : Raptors 3
Introduction ,Terminology & Concepts Impact of Virtual Reality Devices using VR Simulation Systems CAVE HMD Methods of VR Conclusion
04/08/23 Group 1 : Raptors 4
VR is a technology in which allows the user to interact with a computer-stimulated environment – real or imagined one.
Most current VR environments are primarily visual experiences displayed either on a computer screen or through special or stereoscopic displays.
Some stimulations include additional sensory information such as sound through speakers or headphones.
Users can interact with a virtual environment (virtual artifact) through the use of standard input devices such as the keyboard or mouse or multimodal devices.
04/08/23 Group 1 : Raptors 5
Contd…
The simulations environment can be similar to the real world.
eg: simulations for pilot or combat training.
It can also differ significantly from reality, as in VR games.
VR is often used to describe a wide variety of applications, commonly associated with its immersive, highly visual, 3D environments.
04/08/23 Group 1 : Raptors 6
The Metaphysics of Virtual Reality- Michael Heim.
– Simulation– Interaction– Artificiality– Immersion– Telepresence– Full-body immersion– Network communication
04/08/23 Group 1 : Raptors 7
Origin of the term can traced back to the French playwright, poet, actor and director Antonin Artaud , in his seminal book THE THEATRE AND ITS DOUBLE(1938), Artuad described theatre as “la realite virtuelle ”,a virtual reality in which characters, objects, and images take on the phantasmagoric force of alchemy’s visionary internal dramas”
The concept was popularized in mass media by movies such as BRAINSTORMS and many more.
04/08/23 Group 1 : Raptors 8
Mychilo S.Cline, in his book,
“Power, Madness and Immortality: The Future Of Virtual Reality”
He argues that VR will lead to a number of important changes in human life and activity.
VR will be integrated into daily life and activity and will be used in many human ways.
Techniques will be developed to influence human behavior, interpersonal and cognition (ie.virtual genetics)
04/08/23 Group 1 : Raptors 9
VR enables heritage sites to be recreated extremely accurately, so that the recreations can be published in various media.
This technology can be used to develop virtual replicas of caves, natural environment, old towns, monuments, sculptures and archeological elements.
A video sample of the results of this technology can be viewed in www.virtual-caves.com.
04/08/23 Group 1 : Raptors 10
WHERE ‘VIRTUAL REALITY’ HAS BEEN USED?
Fiction books Television Motion pictures Music videos GAMES
Attractions Fine Arts Marketing Health care Education
04/08/23 Group 1 : Raptors 11
Computer graphics coupled with a common programming language such as C++, Perl, Java or Python.
Some most popular computer graphics:
– OpenGL
– Direct3D
– Java3D
– VRML
04/08/23 Group 1 : Raptors 12
Contd…
Their use will be directly influenced by the systems demands in terms of performance, program purpose and hardware platform.
The use of Multithreading (eg.Posix) can also accelerate 3D performance and enable cluster computing with multi-user interactivity.
04/08/23 Group 1 : Raptors 13
Heavily criticized.
Competition against Ubiquitous Computing.
Headaches due to eye strain.
04/08/23 Group 1 : Raptors 14
Devices Using Virtual Reality
HMD
CAVE (Cave Automatic Virtual Environment)
04/08/23 Group 1 : Raptors 15
BOOM - (Binocular Omni-Orientation Monitor)
04/08/23 Group 1 : Raptors 16
Shared Virtual Environments
04/08/23 Group 1 : Raptors 17
Imitation of some real thing, state of affairs, or process.
Classification :-
Physical Simulation
Interactive Simulation
04/08/23 Group 1 : Raptors 18
Applications of simulators
City Simulators :- tool used by urban planners to understand how cities are likely to evolve in response to various policy decisions
Classroom of the future :- will allow students to enter the clinical years better prepared, and with a higher skill level.
Finance :- In finance , computer simulations are often used for scenario planning.
04/08/23 Group 1 : Raptors 19
In Engineering :- The use of simulation throughout the product lifecycle, has the potential of providing substantial benefits.
Military simulations :- are models in which theories of warfare can be tested and refined without the need for actual hostilities.
Flight simulators :- Flight simulators are often used to train pilots to operate aircraft in extremely hazardous situations.
04/08/23 Group 1 : Raptors 20
Air Combat Simulator – Using Virtual Reality
04/08/23 Group 1 : Raptors 21
Marine simulators :- Ship's bridge simulators Engine room simulators Cargo handling
simulators
Truck simulators :- It replicates the external factors and conditions with which a vehicle interacts enabling a driver to feel as if they are sitting in the cab of their own vehicle
04/08/23 Group 1 : Raptors 22
Cave Automatic Virtual Environment (CAVE)
A room with projections on all walls, floor and ceiling
The users wear shutter glasses to get a 3D view of the world.
The users are able to move and control the environment with some kind of input mechanism– Camera– Device in hand
04/08/23 Group 1 : Raptors 23
04/08/23 Group 1 : Raptors 24
3D VIDEO Eyewear
Winner Of A 2005 & 2006 Consumer Electronics Show Design Award
VR Price: $499.00
04/08/23 Group 1 : Raptors 25
GENERAL CHARACTERISTICS
Projection screens
Electro magnetic sensor
Made of steel
Computer control
04/08/23 Group 1 : Raptors 26
SOFTWARES USED IN VR
Cavelib
VR Juggler
Cove
Cave UT
04/08/23 Group 1 : Raptors 27
DEVELOPMENT
Cost & size
45% inclination
One projector
No special room
04/08/23 Group 1 : Raptors 28
APPLICATIONS
In Engineering Field
Machine Design
04/08/23 Group 1 : Raptors 29
HMD or Helmet Mounted Display is a display device worn on the head/as part of head that has a small display device in front of eyes
MonocularBinocular
Head Mounted Display ( HMD)
04/08/23 Group 1 : Raptors 30
Two Or More Small Displays
Lenses& Semitransparent Mirrors
Eyeglasses
LCDs & Liquid Crystal On Silicon
Contents of HMD
04/08/23 Group 1 : Raptors 31
HMDs differ in the way they can display
Just a computer generated display
Show live images
A combination of both
04/08/23 Group 1 : Raptors 32
Major HMD Applications Includes Military, Governmental (fire, police) & Civilian/Commercial
(Medicine, Video Gaming, Sports)
AviationEngineering & MedicineGamingSports
04/08/23 Group 1 : Raptors 33
CAE TampaCanonCyber MindSony
04/08/23 Group 1 : Raptors 34
Methods Of VR
Simulation-based VR
Avatar image-based VR
Projector-based VR
Desktop-based VR
True Immersive Virtual Reality
04/08/23 Group 1 : Raptors 35
Virtual reality will be integrated into daily life and activity and will be used in various human ways.
It has long been feared that Virtual Reality will be the last invention of humans, as once simulations become cheaper and more widespread, no one will ever want to leave their "perfect" fantasies.