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CS5: Computer Graphics Yann Morvan Computer Science morvany@cs.tcd.ie Assessment Exam 80% Two projects 2D Graphics 8% 3D Graphics 12% Practicals every two weeks* OpenGL Graphics Techniques Implementation of selected topics What is Computer Graphics ? Computer Graphics

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cs5 computer graphics

CS5: Computer Graphics

Yann Morvan

Computer Science

morvany@cs.tcd.ie

assessment
Assessment
  • Exam 80%
  • Two projects
    • 2D Graphics 8%
    • 3D Graphics 12%
  • Practicals every two weeks*
    • OpenGL
    • Graphics Techniques
    • Implementation of selected topics
computer graphics
Computer Graphics
  • “Computer Graphics is concerned with producing images (or animations) using a computer.”

rendering

modeling

DISPLAY

WORLD

MODEL

slide6

Modeling And Rendering

© Walt Disney and TSL

slide7

Wireframe Model

Skeletal Model

Muscle Model

© Walt Disney and TSL

Hair

Render and Touch up

Skin

slide9

Spacewars: first computer graphics game (MIT 1961)

Whirlwind: early graphics using VectorScope (1951)

first CAD system (IBM 1959)

SketchPad: first interactive graphics (1961)

slide10

Early texture-mapped image (Catmull 1974)

First bump-mapped images (Blinn 1978)

First ray traced image (Whitted 1980)

First distributed ray traced image (Cook 1984)

slide11

Westworld (1973)

First production movie to feature computer graphics.

Used in various graphics displays within the Westworld center.

slide13

Tron (1980)

First time computer graphics were used for

live action sequences.

slide14

Star Trek II: The Wrath of Khan, genesis effect (1983)

The Last Starfighter (15 minutes) (1982)

movies
Movies

Fully computer generated animated features

movies17
Movies

Special Effects… in Live Action Cinema

movies18
Movies
  • “Traditional” Animated Features…
  • Some examples:
  • Automating Keyframing in many Disney-type animations
  • The flocking behaviour of the wilderbeest in Lion King
  • Non photorealistic rendering: 3D effects in Futurama
slide19

Behind the scenes on Antz Production

Number of frames in the movie

119,592

Number of times the movie was rendered during production

15 (approx.)

Number of feet of approved animation produced in a week

107 ft.

Total number of hours of rendering per week

275,000 hrs.

Average size of the frame rendered

6 MB

Total number of Silicon Graphics servers used for rendering

270

Number of desktop systems used in production

166

Total Number of processors used for rendering

700

Average amount of memory per processor

256 MB

Time it would have taken to render this movie on 1 processor

54 yrs., 222 days, 15 mins., 36 secs.

Amount of storage required for the movie

3.2 TB

Amount of frames kept online at any given time

75000 frames

Time to re-film out final cut beginning to end

41.5 days (997 hrs.)

user interfaces
User Interfaces

CAVE: Immersive and Interactive 3D enironement

B205 Control Console (1960)

3D Studio MAX

medicine and virtual surgery
Medicine and Virtual Surgery

The Visible Human project

cg applications 1
CG Applications (1)
  • Art, Entertainment, Publishing
    • Movie Production, Animation and Special Effects
    • Computer Games
    • Browsing the web
    • Slide, Book and Magazine Design
    • Multimedia
cg applications 2
CG Applications (2)
  • Computer Graphics and Image Processing
  • Scientific Analysis and Visualization
  • Simulations
  • Computer Aided Design
    • Electrical Circuit Design
    • Architecture
related disciplines
Related Disciplines

Data

Processing

DATA

Computer

Vision

Computer

Graphics

IMAGES

Image

Processing

interdisciplinary
Interdisciplinary
  • Science
    • Physics: light, color, appearance, behaviour
    • Mathematics: Curves and Surfaces, Geometry and Perspective
  • Engineering
    • Hardware: graphics media and processors, input and output devices
    • Software: graphics libraries, window systems
  • Art, Perception and Esthetics
    • Color, Composition, Lighting, Realism
graphics and the computer engineer
Graphics and the Computer Engineer
  • Knowledge of the Interdisciplinary Background to Graphics Related Problems
  • Ability to Implement Computer Solutions based on interdisciplinary techniques in computer systems
  • Knowledge of existing hardware and software frameworks for Computer Graphics applications
  • Optimization! Realism/Fidelity vs Speed
subtopics
Subtopics
  • Modelling
  • 2D Graphics
  • 3D Graphics
  • Image Synthesis
    • Ray-tracing, Radiosity
  • Image Processing
  • Animation
    • Key Frame animation
    • Physically Based Simulation
    • Real-time Interactive Animation
course outline 1
Course Outline (1)
  • Computer Graphics: Problems and Applications
  • Graphics Display Hardware and Input Devices
  • Introduction to Colour Theory
  • Geometric Modelling
  • 2D Co-ordinate Systems and Transformations
course outline 2
Course Outline (2)
  • 3D Co-ordinate Systems and Transformations
  • Projection and Viewing
  • Hidden Surface Removal
  • Illumination and Shading
  • Animation and Interaction
  • Global Illumination
  • Current Issues in Computer Graphics
recommended texts
Recommended Texts
  • Computer Graphics – C Version - Hearn, Baker
  • Computer Graphics using Open GL 2/e – F.S. Hill
  • Introduction to Computer Graphics - Foley, Van Dam, Feiner, Hughes, Phillips
  • Interactive Computer Graphics A Top-down approach with OpenGL – Edward Angel
useful references
Useful References
  • OpenGL Programming Guide - M. Woo, J. Neider, and T. Davis
  • OpenGL Reference Manual – OpenGL ARB
  • OpenGL SuperBible – R.S. Wright, Michael Sweet
image synthesis group
Image Synthesis Group

Computer graphics research in Trinity College

Graphics & perception

Virtual Dublin

Characters & Crowds

Image Synthesis

Adaptive Simulation

Virtual Reality