CS 4406 Computer Graphics

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 False

Question 2

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

Select one: a. eye point b. view reference point c. viewport d. view frustum The correct answer is eye point.

Question 3

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 4

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 5 Modeling an object about its local origin in volves defining it in terms of: Select one: a. modeling coordinates b. eye coordinates c. euclidean coordinates d. modeling transformations The correct answer is modeling coordinates.

Question 6

A vertex in graphics modeling defines a:

Select one: a. Point b. Line c. Polygon d. None of these responses The correct answer is Point.

Question 7

Which of the following is an antialiasing method?

Select one: a. pixel super sampling b. geometry sequencing c. unisample antialiasing d. spatial aliasing The correct answer is pixel super sampling.

Question 8

What geometry type will the following pseudocode generate?

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N = 12 
set vertex at (1,0,90) 
for i = 0 to N 
set vertex at (1, 360/I, 90-180/N) 

Select one: a. Triangle Fan b. Triangle Strip c. Quad Strip d. Quad Fan The correct answer is Triangle Fan.

Question 9

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

Select one: True False The correct answer is True

Question 10

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 11

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

Select one: True False The correct answer is False

Question 12

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

Select one: True False The correct answer is False

Question 13

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

Select one True False The correct answer is False.