Lecture computer graphics and virtual reality slides lesson 1 introduction to computer graphics

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Lesson 1

Introduction to Computer Graphics

Trinh Thanh Trung School of ICT, HUST

1 Brief history of computer graphics

2 Categorising computer graphics applications

3 Basic concepts of computer

graphics

History of

computer graphics

The concept of Computer

Graphics was introduced by

William Fetter 1963

Ivan Sutherland brought the idea of

Human Computer Interaction

MIT introduced the Sketchpad project

1966

Ralph Baer created first commercial

applications

▪ Odyssey Pinball

GE created first fly simulation

system for NASA

The Academy Award introduced new

Best Visual Effect category

Nintendo Entertainment System

(NES), also known as Nintendo

Family Computer (Famicom) in Japan was released

1983

First 3D graphics commercial was created by

Cocacola

1984

Pixar was founded

New hardware graphics capabilities

were implemented Graphics cards became widely used 1991

idSoftware was founded

Pixar created Toy Story, first full 3D

animation motion picture

2001

Microsoft introduced XBox

The rise of Virtual Reality

2015 Occulus Rift was developed (later

bought by Facebook)

Google provided Google Cardboard

HTC created HTC Vive (in

association with Valve)

Sony introduced PlayStation VR Samsung introduced Samsung

Gear VR

Computer graphics applications

categorised

Categorised by field of applications

Examples of computer graphics

Square: Final Fantasy

Basic concepts of computer graphics

■ Computer graphics is the

methods and technologies for converting data to and from graphics devices via computers

Definition of computer graphics

■ Computer graphics is a sub-field of

computer science which studies methods for digitally synthesizing and manipulating visual content

■ Interactive Computer Graphics: user controls contents, structure, and appearance of objects and their displayed images via rapid visual

feedback.

Graphics object modelling

■ Sample-based graphics

□ The image of object is represented via pixels,

which are discrete samples

□ Specification of sample-based graphics

▫ Fixed size

▫ Easy to replicate from existing scene

▫ Hard to manipulate or scale

Graphics object modelling

■ Vector-based graphics

□ Represent graphics using object’s

specifications or features

□ Specification of vector-based graphics

▫ Hard to replicate real world objects

▫ Inconsistent size

▫ Can be easily manipulated or scaled

▫ Vector-based graphics object still needs to

be rasterized (i.e converted to

sample-based) to be displayed on the screen

Any questions?

Lecture notes provided by School of Information and

Communication Technology, Hanoi University of Science and

Technology.

Composed by Huynh Quyet Thang, Le Tan Hung, Trinh Thanh

Trung and others

Edited by Trinh Thanh Trung

Special thanks to all the people who made and released these awesome resources for free:

■ Presentation template by SlidesCarnival

■ Photographs by Death to the Stock Photo ( license )

■ Diverse device hand photos by Facebook Design Resources