Introduction to
Computer Graphics
1
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
Courtesy of Tippet Studio
2
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 On set: Pyrotechnics
Courtesy of Tippet Studio
3
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Bugs:
Courtesy of Tippet Studio
4
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 The Final Stage: Burning the bugs
Courtesy of Tippet Studio
5
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
6
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
7
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
8
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
9
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
10
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
11
What is Computer Graphics? (1/2)
 Definition
 Producing pictures or images using a computer
 Example
 Starship Troopers: Tango-Urilla, Death From Above
 Batman & Robin: The Love Dust
Courtesy of Buf Compagnie
12
What is Computer Graphics? (2/2)
 Imaging
 Representing 2D images
 Modeling
 Representing 3D objects
 Rendering
 Constructing 2D images from 3D models
 Animation
 Simulating changes over time
13
TYPES OF COMPUTER GRAPHICS
 Computer graphics is the creation and manipulation of
pictures with the aid of computer.
 There are two types of computer graphics.
1. Interactive computer OR Active graphics
2. Non-interactive graphics OR passive computer graphics
14
TYPES OF COMPUTER GRAPHICS…
1. Interactive computer graphics:
 The computer graphics in which the observer has some
control over the image by providing him with an input device
so that he can signal his request to computer.
Example: Video games.
 Interactive computer graphics involves two way
communication between computer and user.
 The user gives signals to computer through the input device and
computer can modify the displayed picture accordingly.
 In this way we maintain conversation or dialogue with the
computer.
15
TYPES OF COMPUTER GRAPHICS…
2. Non-interactive computer graphics:
 The computer graphics in which the observer has no
control over the image.
 Example: Titles shown on TV.
16
Applications of Graphics:
 Computers have become powerful tool for the rapid and
economical production of pictures.
 Computer graphics are used in several areas such as…
 Science
 Engineering
 Medicine
 Business
 Industry
 Government
 Art
 Entertainment
 Advertising
 Education and training
17
Computer Aided Design (CAD):
 A major use of computer graphics is in design process
particularly for engineering and architectural systems.
 Computer aided design referred as CAD methods are now
routinely used in the design of buildings, automobiles,
aircraft, space craft and textiles etc.,
 Useful for testing performance of a vehicle.
 System in virtual reality environments.
 Realistic renderings of design process.
 Realistic 3D renderings of building designs.
18
Presentation Graphics:
 Presentation graphics used to produce illustration for
reports or generate 35mm slides etc.,
 These graphics are commonly used to summarize and
economic data for research reports, managerial reports,
consumer information bulletins etc.,
 Example:
bar charts,
line graphs and
 pie charts.
19
Computer Art:
 Computer graphics methods are widely used in both fine
art and commercial art applications.
 Artists uses variety of computer methods including
 special purpose hardware,
 paint brush programs,etc.,
20
Entertainment:
 Computer graphics methods are now commonly used in
making motion pictures, music videos and television
shows.
 Sometimes graphics are displayed by themselves
 i.e., computer animation and sometimes graphics objects are
combined with the actors and live scenes.
21
Education and Training:
 Computer generated models of physical, financial and
economic systems are often used as educational aids.
 For some training applications special system are designed.
22
Visualization:
 Producing graphical representations for scientific,
engineering and medical data sets and processes is
generally referred to as scientific visualization.
 For commerce, industry and other non-scientific areas data
sets and processes is generally referred to as business
visualization.
23
Image processing:
 Image processing apply techniques to modify or interpret
existing pictures such as photographs and TV scans.
 Two principal applications of image processing are
 1. Improving picture quality
 2. Machine perception of visual information as used in
robotics.
24
Display of Information
 Graphics for Scientific, Engineering, and Medical Data
Medical Image
Nebula
25
Design
 Graphics for Engineering and Architectural System
 Design of Building, Automobile, Aircraft, Machine etc.
AutoCAD 2002 Interior Design
26
Simulation
 Computer-Generated Models of Physical, Financial
and Economic Systems for Educational Aids
Flight Simulator Mars Rover Simulator
27
Computer Art
 Graphics for Artist
Metacreation Painter
28
Entertainment
 Graphics for Movie, Game, VR etc.
Final Fantasy
Online Game
29

Introduction to Computer Graphics (CG).ppt

  • 1.
  • 2.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above Courtesy of Tippet Studio 2
  • 3.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  On set: Pyrotechnics Courtesy of Tippet Studio 3
  • 4.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Bugs: Courtesy of Tippet Studio 4
  • 5.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  The Final Stage: Burning the bugs Courtesy of Tippet Studio 5
  • 6.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 6
  • 7.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 7
  • 8.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 8
  • 9.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 9
  • 10.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 10
  • 11.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 11
  • 12.
    What is ComputerGraphics? (1/2)  Definition  Producing pictures or images using a computer  Example  Starship Troopers: Tango-Urilla, Death From Above  Batman & Robin: The Love Dust Courtesy of Buf Compagnie 12
  • 13.
    What is ComputerGraphics? (2/2)  Imaging  Representing 2D images  Modeling  Representing 3D objects  Rendering  Constructing 2D images from 3D models  Animation  Simulating changes over time 13
  • 14.
    TYPES OF COMPUTERGRAPHICS  Computer graphics is the creation and manipulation of pictures with the aid of computer.  There are two types of computer graphics. 1. Interactive computer OR Active graphics 2. Non-interactive graphics OR passive computer graphics 14
  • 15.
    TYPES OF COMPUTERGRAPHICS… 1. Interactive computer graphics:  The computer graphics in which the observer has some control over the image by providing him with an input device so that he can signal his request to computer. Example: Video games.  Interactive computer graphics involves two way communication between computer and user.  The user gives signals to computer through the input device and computer can modify the displayed picture accordingly.  In this way we maintain conversation or dialogue with the computer. 15
  • 16.
    TYPES OF COMPUTERGRAPHICS… 2. Non-interactive computer graphics:  The computer graphics in which the observer has no control over the image.  Example: Titles shown on TV. 16
  • 17.
    Applications of Graphics: Computers have become powerful tool for the rapid and economical production of pictures.  Computer graphics are used in several areas such as…  Science  Engineering  Medicine  Business  Industry  Government  Art  Entertainment  Advertising  Education and training 17
  • 18.
    Computer Aided Design(CAD):  A major use of computer graphics is in design process particularly for engineering and architectural systems.  Computer aided design referred as CAD methods are now routinely used in the design of buildings, automobiles, aircraft, space craft and textiles etc.,  Useful for testing performance of a vehicle.  System in virtual reality environments.  Realistic renderings of design process.  Realistic 3D renderings of building designs. 18
  • 19.
    Presentation Graphics:  Presentationgraphics used to produce illustration for reports or generate 35mm slides etc.,  These graphics are commonly used to summarize and economic data for research reports, managerial reports, consumer information bulletins etc.,  Example: bar charts, line graphs and  pie charts. 19
  • 20.
    Computer Art:  Computergraphics methods are widely used in both fine art and commercial art applications.  Artists uses variety of computer methods including  special purpose hardware,  paint brush programs,etc., 20
  • 21.
    Entertainment:  Computer graphicsmethods are now commonly used in making motion pictures, music videos and television shows.  Sometimes graphics are displayed by themselves  i.e., computer animation and sometimes graphics objects are combined with the actors and live scenes. 21
  • 22.
    Education and Training: Computer generated models of physical, financial and economic systems are often used as educational aids.  For some training applications special system are designed. 22
  • 23.
    Visualization:  Producing graphicalrepresentations for scientific, engineering and medical data sets and processes is generally referred to as scientific visualization.  For commerce, industry and other non-scientific areas data sets and processes is generally referred to as business visualization. 23
  • 24.
    Image processing:  Imageprocessing apply techniques to modify or interpret existing pictures such as photographs and TV scans.  Two principal applications of image processing are  1. Improving picture quality  2. Machine perception of visual information as used in robotics. 24
  • 25.
    Display of Information Graphics for Scientific, Engineering, and Medical Data Medical Image Nebula 25
  • 26.
    Design  Graphics forEngineering and Architectural System  Design of Building, Automobile, Aircraft, Machine etc. AutoCAD 2002 Interior Design 26
  • 27.
    Simulation  Computer-Generated Modelsof Physical, Financial and Economic Systems for Educational Aids Flight Simulator Mars Rover Simulator 27
  • 28.
    Computer Art  Graphicsfor Artist Metacreation Painter 28
  • 29.
    Entertainment  Graphics forMovie, Game, VR etc. Final Fantasy Online Game 29