Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Chapter: 20
Q681:
Which component of the projection matrix adjusts vertices based on a specified distance from the camera?
A. Translation matrix
B. Perspective matrix
C. Viewing matrix
D. Composite projection matrix
Correct Answer:
A
Chapter: 20
Q682:
The perspective projection matrix accounts for which viewport parameters?
A. Field of view and viewport dimensions
B. Camera angle and depth
C. Aspect ratio and clipping planes
D. Zoom level
Correct Answer:
A
Chapter: 20
Q683:
What is used to adjust vertices to account for the aspect ratio in the perspective projection?
A. Field-of-view angles
B. Viewport's dimensions
C. Screen resolution
D. Camera depth
Correct Answer:
B
Chapter: 20
Q684:
The variable Zn in the perspective projection matrix represents the _______.
A. Field of view
B. Z-value of the far clipping plane
C. Z-value of the near clipping plane
D. Aspect ratio
Correct Answer:
C
Chapter: 20
Q685:
Which transformation occurs after the perspective projection matrix is applied?
A. Clipping polygons
B. Converting 3D points to 2D
C. Applying camera rotation
D. Setting up screen space
Correct Answer:
B
Chapter: 20
Q686:
What is the result of multiplying the world, view, and projection matrices in 3D rendering?
A. Transforms points from screen space to world space
B. Converts local space points to screen space
C. Adjusts the camera angle
D. Projects vertices to the far end
Correct Answer:
B
Chapter: 20
Q687:
In perspective projection, objects near the camera appear _______ compared to those farther away.
A. Smaller
B. Larger
C. The same size
D. Invisible
Correct Answer:
B
Chapter: 20
Q688:
What does the translation matrix in the viewing frustum do?
A. Scales the objects
B. Moves the camera to the origin
C. Adjusts the clipping planes
D. Transforms world space to view space
Correct Answer:
B
Chapter: 20
Q689:
In the 3D rendering process, what happens after multiplying the total transformation matrix?
A. Points are drawn
B. Objects are moved away
C. Objects are clipped
D. The image is displayed on the screen
Correct Answer:
A
Chapter: 20
Q690:
Which coordinate system is used in the perspective projection in this content?
A. Cartesian
B. Homogeneous coordinates
C. Spherical coordinates
D. Polar coordinates
Correct Answer:
A
Chapter: 20
Q691:
In the perspective projection matrix, the w component must be _______ to extract Cartesian coordinates.
A. Zero
B. One
C. Negative
D. Undefined
Correct Answer:
B
Chapter: 20
Q692:
The aspect ratio in the projection matrix is calculated using which parameters?
A. Viewport width and height
B. Field of view and clipping planes
C. Viewport width and depth
D. Camera angles
Correct Answer:
A
Chapter: 20
Q693:
The projection matrix used by Microsoft Direct3D is typically a _______ projection.
A. Scale
B. Perspective
C. Orthogonal
D. Uniform
Correct Answer:
B
Chapter: 20
Q694:
The viewing frustum is a 3D volume with the camera positioned at the _______ of the pyramid.
A. Tip
B. Base
C. Side
D. Top
Correct Answer:
A
Chapter: 20
Q695:
The translation matrix in the viewing frustum moves the camera by a value of _______.
A. -D
B. +D
C. +z
D. -z
Correct Answer:
A
Chapter: 20
Q696:
The matrix multiplication in the perspective projection combines which transformations?
A. World, view, and projection matrices
B. Rotation, scaling, and translation matrices
C. Perspective and camera transformations
D. World and clipping matrices
Correct Answer:
A
Chapter: 21
Q697:
What is the fundamental drawing primitive in 3D graphics?
A. Triangles
B. Squares
C. Rectangles
D. Circles
Correct Answer:
A
Chapter: 21
Q698:
Triangles are primarily used in 3D graphics to represent which of the following?
A. Polygons
B. Meshes
C. Lines
D. Curves
Correct Answer:
B
Chapter: 21
Q699:
What does the orientation of a triangle in 3D graphics help with?
A. Color calculation
B. Normal calculation
C. Texture mapping
D. Depth calculation
Correct Answer:
B
Chapter: 21
Q700:
In the context of 3D graphics, a triangle fan shares which characteristic?
A. A common point
B. A common edge
C. A common plane
D. A common normal
Correct Answer:
A