Computer Graphics

Assistant Professor

Dr. Sana’a Wafa Al-Sayegh

2nd Semester 2008-2009

ITGD3107

University of Palestine

ITGD3107 Computer Graphics

Course Description:

This course give an introduction to graphics systems, rasterizing, clipping, transformations, modeling, viewing, hidden surface removal, illumination, and shading. Emphasis on realistic, 2D and 3D image synthesis.

Course Objectives:

Upon completion of this course, the students will be able to:

• Understand the main concepts of Computer Graphics.• Understand and apply graphics systems, rasterizing,

clipping, transformations, modeling, viewing, hidden surface removal, illumination, and shading. Emphasis on realistic, 2D and 3D image synthesis by hand and by using any computer programming language.

ITGD3107 Computer Graphics

Course Text Book and Other References:

Donald Hearn M. and Pauline Baker “Computer Graphics-C Version”, Second Edition, 1997

Donald Hearn M. and Pauline Baker “Computer Graphics”, Second Edition, 1994

D.P. Mukherjee “Fundamentals of computer Graphics and Multimedia” , 2006.

V.K. Pachghare “Computer Graphics”, Second Edition, 2007

ITGD3107 Computer Graphics

Chapter 1-2

Introduction

ITGD3107 Computer Graphics

Introduction

• The Origins of Computer Graphics?

• What is Computer Graphics?

• Computer Graphics Applications

• Graphics Systems

The Origins of Computer Graphics ?• William Fetter coined term “computer graphics” in

1960 to describe new design methods .• Created a series of widely reproduced images on pen plotter, using 3D model of human body. • Perhaps the best way to define computer graphics is to

find out what it is not. It is not a machine. It is not a computer, nor a group of computer programs. It is not the know-how of a graphic designer, a programmer, a writer, a motion picture specialist, or a reproduction specialist.

• Computer graphics is all these – managed and documented technology directed toward communicating information accurately and descriptively.”

What is Computer Graphics ?

Computer graphics generally means creation, storage and manipulation of models and images.

Such models come from diverse and expanding set of fields including physical, mathematical, art, biological, and even conceptual (abstract) structures.

What is Computer Graphics ?

• Imaging = representing 2D images

• Modeling = representing 3D objects

• Rendering = constructing 2D images from 3D models

• Animation = simulating changes over time

Computer Graphics Applications

- Entertainment• Games

• Movie

-Engineering and Business (CAD / CAM) -Scientific Visualization / Simulation

-Virtual Reality

-Computer Art

- Training and Education

Computer Graphics Applications Entertainment Industry

Game

Movie

Magic of Computer Graphics in movie industry

Computer Graphics Applications Engineering and Business (CAD / CAM)

Computer graphics has had a dramatic impact on

the design and engineering process– Product design

Computer Graphics Applications Engineering and Business (CAD / CAM)

Computer graphics has had a dramatic impact on the

design and engineering process– Architectural design

Architecture, Engineering, Construction

Final product appearance

Computer Graphics Applications Scientific Visualization/ Simulation

Scientific data representation

Picture vs. stream of numbers

Medical imaging & visualization

Computer Graphics Applications Virtual Reality

User interacts with objects in a 3D scene

-Special devices (input, output)

-Virtual walkthroughs

-Equipment training

Computer Graphics Applications Computer Art

-Fine arts, commercial art-Artistic tools for digital art:

Mathematical software (Matlab, Mathematica) CAD software-Graphical user interfaces

-Special input devices (pressure-sensitive stylus, graphical tablet, etc.)

Computer Graphics Applications Computer Art

Digital Painting

Sketch-Based Modeling

Computer Graphics Applications Training and Education

Training

Education

Graphics Systems

Cathode Ray Tubes CRTs

Graphics Systems

Graphics Systems