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Welcome to 14:332:476 Virtual Reality Spring 2008

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Title: Welcome to 14:332:476 Virtual Reality Spring 2008


1
Welcome to 14332476 Virtual Reality Spring 2008
Electrical and Computer Engineering Department
  • Grigore C. Burdea Ph.D.
  • Director, HumanMachine Interface Laboratory,
  • CAIP Center, Rutgers University.
  • http//www.caip.rutgers.edu/vrlab/

2

Class web site www.caip.rutgers.edu/vrlab/vrclass
Textbook site www.vrtechnology.org
3

Grading Criteria (476) Quizzes 10, Midterm
45 Final 45 Laboratory assignments graded
separately (for 478)
4
Textbook Burdea and Coiffet, Virtual Reality
Technology, 2nd Edition, Wiley, 2003
5
Textbook web site www.vrtechnology.org
6
Textbook web site www.vrtechnology.org
7

Laboratory Hardware
8

Introduction
9

What is Virtual Reality?
10
Introduction
It is not augmented reality….
11
Introduction
What is Virtual Reality? A high-end
user-computer interface that involves real-time
simulation and interaction through multiple
sensorial channels. (vision, sound, touch,
smell, taste)
12
Introduction
13
Introduction
Sensorama Simulator, US Patent 3,050,870, 1962
14
VR Short History
1963 Ivan Sutherland's doctoral theses
SKETCHPAD stereo HMD, position tracking, and a
graphics engine. 1966 Tom Furness display
systems for pilots 1967 Brooks developed
force feedback GROPE system
15
Introduction
Ivan Sutherlands HMD (1966)
16
Introduction
Brookss Grope Project (1977)
17
VR Short History
1977 Sandin and Sayre invent a bend-sensing
glove 1979 Raab et al Polhemus tracking
system 1989 Jaron Lanier (VPL) coins the
term virtual reality 1994 VR Society formed
18
Introduction
NASA … a pioneer in VR
The first complete system was developed by NASA
Virtual Visual Environmental Display (VIVED
early 80s they prototyped the LCD HMD Became
Virtual Interface Environment Workstation
(VIEW) 1989
19
Introduction
NASA VIEW system (1989)
20
Introduction
NASA VIEW system (1992)
21
Introduction
Why NASA?
Large simulation and training needs Could not
send humans to other planets Relatively small
budgets.
22
Introduction
Towards Commercialization… The first commercial
VR systems appeared in the late 80s produced by
VPL Co. (California) The VPL Data Glove and
The VPL Eye Phone HMD
23
Introduction
The VPL DataGlove (1987) cost 8,500
24
Introduction
The Matel PowerGlove (1989)
25
The first commercial VR glove for entertainment
Mattel Power Glove 50 (1989)
26
Early HMDs were massive
The Flight Helmet (ca. 1990) weighs 5 lbs
27
…and had poor resolution
28
Introduction
  • Virtual Reality in the early 90s….
  • Emergence of first commercial Toolkits
  • WorldToolKit (Sense8 Co.)
  • VCToolkit (Division Ltd., UK)
  • Virtual Reality Toolkit VRT3 (Dimension
    Ltd./Superscape, UK)
  • Cyberspace Developer Kit (Autodesk)

29
Introduction
Superscape VRT3 Development System
30
Introduction
  • Virtual Reality in the early 90s….
  • Emergence of first non-commercial toolkits
  • Rend386
  • Later Virtual Reality Modeling Language (VRML
    1.0)
  • Later still Java and Java 3D

31
Introduction
Successor is AVRIL ("A Virtual Reality Interface
Library) C library for creating Created at U.
Waterloo, Canada ece.uwaterloo.ca/broehl/avril.ht
ml
Scene created with Rend386
32
Introduction
  • Virtual Reality in the early 90s….
  • PC boards still very slow (7,000 35,000
    polygons/sec)
  • First turnkey VR system Provision 100 (Division
    Ltd.)
  • Emergence of faster graphics rendering
    architectures at UNC Chapel Hill
  • Pixel Planes
  • Later Pixel Flow

33
Introduction
35,000 polygons/sec 26,000 (with two
co-processors)/card Require up to 6 PC slots for
stereo version
Stride PC graphics accelerator
34
Introduction
35,000 polygons/sec 64,000 (including texture
generator, tracker, 3-D audio, HMD and software)
Provision 100 VR turnkey system (Division Ltd.,
UK)
35
Introduction
Provision 100 VR turnkey system (Division Ltd.,
UK)
36
Introduction
1 Million triangles/sec
Pixel Planes 5 VR system (UNC)
37
Rendering speed comparison SGI vs. PCs
38
Laboratory VR Station prices (2002)
39
VR Market growth
40
The key elements of a VR System
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