Computer Graphics II

Question 1

What is Computer Graphics?

Answer 1

The term computer graphics was coined in 1960 by William Fetter to describe new design methods he was pursuing at Boeing

Fetter created a series of widely reproduced images on a pen plotter exploring cockpit design, using a 3D model of a human body

Question 2

Functions of CG

Answer 2

Modelling objects on a computer
Interacting with those objects
Displaying those objects bigger, brighter
Simulating physical phenomena
Visualization of complex data

Question 3

Compter Graphics : 1950-1960

Answer 3

-Strip charts
-Pen plotters
-Simple displays using A/D converters to go from computer to calligraphic CRT

Question 4

Computer Graphics : 1960-1970

Answer 4

+Wireframe graphics
-Draw only lines
+Sketchpad : The first interactive computer graphics application.
+Display processors
-Graphics stored in display list (display file) on display processor
+Storage tube

Question 5

Computer Graphics : 1970-1980

Answer 5

+Raster Graphics
-Image produced as an array of pixels
+Beginning of graphics standarts
-IFIPS
+GKS : European effort
+Becomes ISO 2D standart
-Core : North American effort
+3D but fails to become ISO standart
+Workstations and PCs

Question 6

Raster graphics

Answer 6

1970-1980
Image produced as an array (the raster) pf picture elements (pixels) in the frame buffer

Allows us to go from lines and wire frame images to filled polygons

Question 7

Computer Graphics : 1980-1990

Answer 7

+Realism comes to computer graphics
+Special purpose hardware
-Silicon Graphics geometry engine
+Industry-based standart
+Networked graphics : X Window System
+Human-Computer Interface (HCI)

Question 8

Computer Graphics : 1990-2000

Answer 8

+OpenGL API
+Compeletely computer-generated feature-length movies (Toy Story) are successful
+New hardware capabilities
-Texture mapping
-Blending
-Accumulation, stencil bufferrs

Question 9

What is GPU?

Answer 9

Graphics Processing Unit
Placed in 3D graphics cards
Used to accelerate 3D applications

Question 10

Computer Graphics : 2000-

Answer 10

+Photorealism
+Graphics cars for PCs dominate market
+Nvidia, ATI, 3DLabs
+Game boxes and game players determine direction of market
+Computer graphics routine in movie industry : Mary, Lightwave

Question 11

Applicationos of Computer Graphics

Answer 11

Some of the application areas which make heavy use of computer graphicsare :
-Computer aided design
-Scientific visualization
-Films
-Games
-Virtual/Augmented Reality
…

Question 12

Three Mains of Computer Graphics

Answer 12

1-Modeling
2-Animation
3-Rendering : Display models, working on effects

Question 13

CG in terms of Maths

Answer 13

Coordinates
Points&Lines
Vectors
Matrices