Computer Graphics Quiz

CS 4406: COMPUTER GRAPHICS

True/False: The 3D Cartesian coordinate space is divided into 6 quadrants.

Select one:

True 

False

 

The correct answer is 'False'.


Question 
2

True/False: In 2D Cartesian coordinates, any two lines that are not parallel will meet in a point.

Select one:

True 

False

 

The correct answer is 'True'.


Question 
3

What color does the following hexadecimal number 0x000000 specify?

Select one:

  1. White 
  2. Black
  3. Yellow
  4. Red

 

The correct answer is: Black


Question 
4

True/False: Of the three colors in the RGB model, blue has the brightest luminance.

Select one:

True 

False

 

The correct answer is 'False'.


Question 
5

The transparency for a color is called the _____ and its value is a number between 0.0 and 1.0.

Select one:

  1. Alpha Level
  2. color gamut
  3. Mach bands
  4. emissive color

 

The correct answer is: Alpha Level


Question 
6

The range of colors that a display device can represent is called the:

Select one:

  1. Color gamut
  2. mach bands
  3. the CMYK of the device
  4. None of these answers

 

The correct answer is: Color gamut


Question 
7

True/False: In an object with an alpha level of 1.0, you can see the objects that behind it?

Select one:

True 

False

 

The correct answer is 'False'.


Question 
8

True/False: The difference between WebGL and OpenGL is that WebGL only supports 2D graphics and OpenGL supports both 2D and 3D graphics.

Select one:

True 

False

 

The correct answer is 'False'.


Question 
9

The position that you are viewing a scene from is called the:

Select one:

  1. eye point
  2. view reference point
  3. viewport
  4. view frustum

 

The correct answer is: eye point


Question 
10

True/False: An orthographic projection, projects all of the objects in the scene to the viewing plane by parallel lines.

Select one:

True 

False

 

The correct answer is 'True'.


Question 
11

Which projection do the following objects represent?

Select one:

  1. Parallel projection
  2. Orthographic projection
  3. Perspective projection
  4. Scaled projection

 

The correct answer is: Perspective projection


Question 
12

True/False: Clipping defines parts of the scene that you do not want to display.

Select one:

True 

False

 

The correct answer is 'True'.


Question 
13

Modeling an object about its local origin involves defining it in terms of:

Select one:

  1. modeling coordinates
  2. eye coordinates
  3. euclidean coordinates
  4. modeling transformations

 

The correct answer is: modeling coordinates


Question 
14

A vertex in graphics modeling defines a:

Select one:

  1. Point
  2. Line
  3. Polygon
  4. None of these responses

 

The correct answer is: Point


Question 
15

Which of the following shows obvious aliasing artifacts?

Select one:

  1. line a
  2. line b
  3. line c
  4. line d

 

The correct answer is: line b


Question 
16

Which of the following is an antialiasing method?

Select one:

  1. pixel supersampling
  2. geometry sequencing
  3. unisample antialiasing
  4. spatial aliasing

 

The correct answer is: pixel supersampling


Question 
17

What geometry type will the following pseudo code generate?

N = 12

set vertex at (1,0,90)

for i = 0 to N

  set vertex at (1, 360/I, 90-180/N)

Select one:

  1. Triangle Fan
  2. Triangle Strip
  3. Quad Strip
  4. Quad Fan

 

The correct answer is: Triangle Fan


Question 
18

True/False: A transformation is a function that takes geometry and produces new geometry.

Select one:

True 

False

 

The correct answer is 'True'.


Question 
19

True/False: To rotate geometry 90 degrees you would use the translation form of transformation?

Select one:

True 

False

 

The correct answer is 'False'.


Question 
20

Which of the following types of transformations should be used to transform the picture on the left into the picture on the right?

Select one:

  1. Rotation
  2. Translation
  3. Rendering
  4. None of these answers

 

The correct answer is: Rotation


Question 
21

True/False: Transformations are mathematical operations that map 3D space to 2D space and so mathematics has standard ways to represent them.

Select one:

True 

False

 

The correct answer is 'False'.


Question 
22

True/False: In Three.js, the CylinderGeometry object is created from a series of vertices?

Select one:

True 

False

 

The correct answer is 'False'.

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