Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Multiple Choice Questions
Q761: Which of the following can be done to brighten a scene when using colored light in a 3D environment?
- A: Increase color saturation
- B: Increase contrast
- C: Use texture preprocessing
- D: Reduce the alpha channel brightness
View Answer
C
Q762: What happens when a colored light is used in a scene?
- A: The scene becomes brighter
- B: The scene becomes darker
- C: The scene stays the same
- D: The light becomes less intense
View Answer
B
Q763: In a 24-bit color image, how many bits are allocated for each color channel?
- A: 5 bits for red, 6 bits for green, 5 bits for blue
- B: 8 bits for red, 8 bits for green, 8 bits for blue
- C: 5 bits for red, 5 bits for green, 5 bits for blue
- D: 4 bits for each channel
View Answer
B
Q764: Which of the following defines the concept of "saturation" in color operations?
- A: The amount of light intensity
- B: The level of transparency
- C: The strength or purity of the color
- D: The angle of the light source
View Answer
C
Q765: In the color4 structure, how are the color values for red, green, and blue stored?
- A: In a float array
- B: c[4]
- C: As a struct with individual r, g, b components
- D: As a hexadecimal number
View Answer
B
Q766: What does the `Saturation` function in the color4 structure likely address?
- A: Adjusting the color to a specific range
- B: Converting the color to grayscale
- C: Changing the color model
- D: Adjusting the alpha value
View Answer
A
Q767: When using RGB color values, if a surface has no red component, how will a red light affect it?
- A: The surface will glow red
- B: There will be no red contribution
- C: The surface will appear blue
- D: The surface will appear green
View Answer
B
Q768: What is the purpose of capping color values during color operations?
- A: To ensure colors stay within the valid range
- B: To prevent distortion of the image
- C: To make the color appear brighter
- D: To adjust the gamma of the image
View Answer
A
Q769: When performing piecewise multiplication of colors, what is the expected result?
- A: The final color will always be brighter
- B: Colors may become darker or stay the same
- C: Colors will become more vibrant
- D: Colors will blend into each other
View Answer
B
Q770: What happens when a surface is illuminated by a light with a green component, but the surface has no green component?
- A: The surface will reflect green light
- B: The surface will not reflect green light
- C: The surface will reflect red light
- D: The surface will appear white
View Answer
B