Introduction to Computer Graphics CS 445 / 645 David Brogan [email protected] Class Web Page http://www.cs.virginia.edu/~gfx/Courses • Class lectures posted • Assignments distributed.
Download ReportTranscript Introduction to Computer Graphics CS 445 / 645 David Brogan [email protected] Class Web Page http://www.cs.virginia.edu/~gfx/Courses • Class lectures posted • Assignments distributed.
Introduction to Computer Graphics CS 445 / 645
David Brogan [email protected]
Class Web Page
http://www.cs.virginia.edu/~gfx/Courses
• • Class lectures posted Assignments distributed
Instructor/TA Coordinates
• David Brogan –
Olsson 216
–
• Julian Dymacek –
Olsson 233
–
Prerequisites
• CS 216 – You will be writing programs –
Non-trivial data structures, pointers
• An ability to learn a programming library on your own –
OpenGL
• Comfortable with matrix algebra and calculus –
Basic linear algebra used
Text
• Computer Graphics with OpenGL –
Third Edition
–
Hearn and Baker
Work
• Five programming assignments (50%) –
C/C++ using OpenGL, GLUT, and UI libraries
–
Source will be read and documentation is req’d
• Three homework assignments (10%) –
Intended to support lecture material
• Midterm and Final (20% each)
Honor Code
• Specific honor code instructions will be provided with each assignment • • When in doubt… –
Don’t use resources other than class notes and textbook
Typically… –
Using examples from the web is a great way to learn and it is encouraged… reference what you use
• Never –
Share code with another student or debug code together
Topics
• Core graphics pipeline –
Modeling transformation, viewing transformation, hidden surface removal, illumination / shading / textures, scan conversion / clipping
• OpenGL • Morphing, curves and surfaces, animation • Not a course about graphic design, using graphics tools like PhotoShop or Maya
Impact of Computers
Moore’s Law Power of a CPU doubles every 18 months / 2 years
Impact of Video Games (Nvidia)
Number of transistors on GPU doubles each 6 mos.
• Three times Moore’s Law –
Good article on Jen-Hsun Huang, Nvidia CEO: http://www.wired.com/wired/archive/10.07/Nvidia_pr.html
Col. Steve Austin
Worldwide revenues
$7 Billion Man $5.6 Billion Man Retro flashback???
Lee Majors
Impact of Video Games
But…
• • • Video game sales is roughly same as Hollywood box office Americans bought $3.2 billion in VCRs and DVDs in 2002 Total revenues to movie studios is 5 times total video game revenues
Future of Consoles
• 33 million PS2s (in 2002) • 3.9 million Xboxes (in 2002) –
MSFT still losing lots of $$ per console
• Predicted 200 million PDA/Cell game players in 2005 –
Do you believe it?
Graphics Applications
Entertainment: Cinema
Pixar: Monster’s Inc.
Square: Final Fantasy
Entertainment
Final Fantasy
(Square, USA)
Entertainment
A Bug’s Life
(Pixar)
Graphics Applications
Medical Visualization
MIT: Image-Guided Surgery Project
Graphics Applications
Everyday Use
• • • Microsoft’s Whistler OS will use graphics seriously Graphics visualizations and debuggers Visualize complex software systems
Everyday use
Everyday use
Window system and large-screen interaction metaphors
(François Guimbretière)
Graphics Applications
Scientific Visualization
Scientific Visualization
Airflow around a Harrier Jet
(NASA Ames)
Graphics Applications
Computer Aided Design (CAD)
Graphics Applications
Training
Designing Effective Step-By-Step Assembly Instructions
(Maneesh Agrawala et. al)
Graphics Applications
Entertainment: Games
GT Racer 3 Polyphony Digital: Gran Turismo 3, A Spec
Games
Circus Atari
(Atari)
Education
Outside In
(Geometry Center, University of Minnesota)
The Basics
Computer graphics: generating 2D images of a 3D world represented in a computer.
Main tasks:
•
modeling
: (shape) creating and representing the geometry of objects in the 3D world •
rendering
: (light, perspective) generating 2D images of the objects •
animation
: (movement) describing how objects change in time
Why Study Computer Graphics?
Graphics is cool
• • I like to see what I’m doing I like to show people what I’m doing
Graphics is interesting
• Involves
simulation
, AI,
algorithms
,
architecture
…
I’ll never get an Oscar for my acting
• But maybe I’ll get one for my CG special effects
Graphics is fun
Can we learn from history?
Among the studies of natural causes and laws, it is light that most delights its students. Among all the great branches of mathematics, the certainty of its demonstrations pre-eminently elevates the minds of its investigators. Perspective, therefore, should be preferred above all man’s discourses and disciplines. In this subject the visual rays are elucidated by means and demonstrations which derive their glory nor only from mathematics but also from physics; the one is adorned equally with the flowers of the other.
Leonardo da Vinci (1400’s) quoting John Pecham (1200’s)
Perspective
Machines
Leonardo Again
There are some who look at the things produced by nature through glass, or other surfaces or transparent veils. They trace outlines on the surface of the transparent medium… But such an invention is to be condemned in those who do not know how to portray things without it, no how to reason about nature with their minds… They are always poor and mean in every invention and in the composition of narratives, which is the final aim of this science
Perspective
Lorenzetti
• • Birth of the Virgin 1342
Leonardo
• • The Last Supper 1498
Shape
We Labor On… Light Stage – 2002 USC, Institute for Creative Technologies
More, more, MORE!
Sequence of advanced graphics courses at UVA: CS 446: Real Time Rendering (Dave Luebke)
• • Building interactive graphics systems (games!) Right now and Fall 2005
CS 447: Image Synthesis (Greg Humphreys)
• • Modeling light and materials (Rendering) Fall 2004
CS 448: Animation (me)
• • Modeling movement Spring 2005