Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Chapter: 22
Q741:
Smooth shading uses _______ interpolation to approximate the effect of lighting on the surface of a triangle.
A. Linear
B. Cubic
C. Spline
D. Bezier
Correct Answer:
A
Chapter: 22
Q742:
Fill in the blank: The process of triangle rasterization typically begins with sorting the vertices based on their _______ coordinates.
A. y
B. x
C. z
D. w
Correct Answer:
A
Chapter: 22
Q743:
In triangle rasterization, the term "texel" refers to _______.
A. A pixel in the texture map
B. An edge of the triangle
C. A vertex position
D. The color value for a pixel
Correct Answer:
B
Chapter: 22
Q744:
The purpose of the fix-up distance in the sub-pixel accuracy algorithm is to _______.
A. Adjust the starting point for the DDA calculation
B. Increase triangle resolution
C. Calculate the color value of the pixel
D. Reduce memory usage
Correct Answer:
A
Chapter: 22
Q745:
In the Bilinear Sampling function, the variables u0, u1, v0, v1 represent the _______ values of the texture coordinates.
A. Floor and ceiling
B. Fractional and integer
C. Vertex and color
D. Scanline and edge
Correct Answer:
A
Chapter: 23
Q746:
What is the main purpose of using the alpha component in color representation?
A. To store color information
B. To store transparency information
C. To increase image resolution
D. To reduce color depth
Correct Answer:
B
Chapter: 23
Q747:
Which of the following is the correct representation for a color with red, green, and blue values in a computer graphics pipeline?
A. rgba
B. rgb
C. hexadecimal
D. color4
Correct Answer:
B
Chapter: 23
Q748:
What does the "rgba" color representation include?
A. Red, Green, Blue, and Alpha
B. Red, Green, Black, and Alpha
C. Red, Green, Blue, and Brightness
D. Red, Green, Blue, and Transparency
Correct Answer:
A
Chapter: 23
Q749:
A 16-bit display uses how many bits per pixel for color information?
A. 8 bits
B. 16 bits
C. 24 bits
D. 32 bits
Correct Answer:
B
Chapter: 23
Q750:
Which color format is typically referred to as "true color"?
A. 16-bit color
B. 24-bit color
C. 32-bit color
D. 128-bit color
Correct Answer:
B
Chapter: 23
Q751:
In a 24-bit display, how many distinct values are available for each color channel (Red, Green, Blue)?
A. 256
B. 512
C. 1024
D. 65536
Correct Answer:
A
Chapter: 23
Q752:
What is the maximum number of colors a 24-bit display can represent?
A. 256
B. 1024
C. 16.7 million
D. 1 billion
Correct Answer:
C
Chapter: 23
Q753:
The alpha channel in a 32-bit color represents which of the following?
A. Transparency
B. Opacity
C. Light intensity
D. Color saturation
Correct Answer:
A
Chapter: 23
Q754:
Which of the following structures contains the alpha component in addition to RGB values?
A. color3
B. color4
C. color5
D. color6
Correct Answer:
B
Chapter: 23
Q755:
In the color4 structure, which component is used for transparency?
A. Red
B. Green
C. Blue
D. Alpha
Correct Answer:
D
Chapter: 23
Q756:
When dealing with colors, what does the term "gamut" refer to?
A. The range of colors a device can display
B. The brightness of a display
C. The color temperature
D. The contrast ratio
Correct Answer:
A
Chapter: 23
Q757:
What is the color range for each component in color representation?
A. [0,1]
B. [0,255]
C. [1,10]
D. [0,100]
Correct Answer:
A
Chapter: 23
Q758:
The color model that uses Hue, Saturation, and Value (HSV) is typically used by which devices?
A. Monitors
B. Printers
C. Mobile phones
D. Cameras
Correct Answer:
B
Chapter: 23
Q759:
In the piecewise multiplication of color values, what does this operation describe?
A. Combining two color values to create a new color
B. Modifying the brightness of a color
C. Calculating the reflected light color
D. Changing the color space
Correct Answer:
C
Chapter: 23
Q760:
What is the result of multiplying a pure green light with a surface that has no green component?
A. The surface will glow green
B. The surface will glow blue
C. The surface will not reflect any green light
D. The surface will reflect red light
Correct Answer:
C