Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Multiple Choice Questions
Q1021: What surface property causes backscattering in rough surfaces?
- A: Microfacet orientation
- B: High gloss
- C: Smoothness
- D: Transparency
View Answer
A
Q1022: The Oren–Nayar model improves the traditional Lambertian model by considering _______.
- A: surface smoothness
- B: surface roughness
- C: reflection index
- D: view angle
View Answer
B
Q1023: What does the σ parameter represent in the Oren–Nayar model?
- A: Surface temperature
- B: Surface color
- C: Surface roughness
- D: Light intensity
View Answer
C
Q1024: In the Oren–Nayar model, a larger σ value means the surface is _______.
- A: smoother
- B: rougher
- C: darker
- D: brighter
View Answer
B
Q1025: Which angle represents the view direction in the Oren–Nayar model?
- A: θi
- B: θr
- C: φi
- D: φr
View Answer
B
Q1026: In forward scattering, light travels _______ after bouncing off a surface.
- A: away from the source
- B: back to the source
- C: toward the observer
- D: parallel to surface
View Answer
A
Q1027: What is the full form of kc, k1, and kq in attenuation formula?
- A: Constant, linear, and quadratic factors
- B: Circular, luminous, and quantized factors
- C: Color, light, and quadratic
- D: Constant, luminous, and quadratic
View Answer
A
Q1028: In practice, real-world light attenuation is simulated in graphics because pure inverse-square law is _______.
- A: too slow
- B: too steep
- C: too flat
- D: too complex
View Answer
B
Q1029: What is the main purpose of Physically Based Illumination in computer graphics?
- A: To increase frame rate
- B: To simplify rendering
- C: To create realistic lighting
- D: To enhance color contrast
View Answer
C
Q1030: In physically based illumination, light is treated as a _______.
- A: Particle
- B: Wave
- C: Particle and Wave
- D: Neither A nor B
View Answer
B