Introduction to Computer Graphics (CG).ppt

Computer graphics is a dynamic and essential field within computing that involves the creation, manipulation, and rendering of visual content using computers.

1. Introduction to
Computer Graphics
1

2. 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

3. 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

4. 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

5. 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

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
6

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
7

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
8

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
9

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
10

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
11

12. 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

13. 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
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14. 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
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15. 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.
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16. 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.
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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
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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.
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19. 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.
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20. 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.,
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21. 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.
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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.
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23. 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.
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24. 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.
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25. Display of Information
Graphics for Scientific, Engineering, and Medical Data
Medical ImageNebula
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26. Design
Graphics for Engineering and Architectural System
Design of Building, Automobile, Aircraft, Machine etc.
AutoCAD 2002 Interior Design
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27. Simulation
Computer-Generated Models of Physical, Financial
and Economic Systems for Educational Aids
Flight Simulator Mars Rover Simulator
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28. Computer Art
Graphics for Artist
Metacreation Painter
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29. Entertainment
Graphics for Movie, Game, VR etc.
Final Fantasy
Online Game
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