Computer Graphics NPTEL Assignment 4 Answers
Course Name: Computer Graphics NPTEL
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These are the solution of Computer Graphics NPTEL Assignment 4 Answers
Q1) One of the primary purposes of assigning colors to the objects in a scene is to perceive depth, which helps in creating impression of 3D.
a. True
b. False
Answer: a. True
Q2) Lighting model computes color in terms of ________ values.
a. Power
b. Complexity
c. Intensity
d. Voxel
Answer: b. Complexity
These are the solution of Computer Graphics NPTEL Assignment 4 Answers
Q3) In lighting model, to avoid indistinguishable overlapping of surfaces with different distances we use
a. Intensity Attenuation
b. Color Attenuation
c. Intensity Reflection
d. Color Reflection
Answer: a. Intensity Attenuation
Q4) Color of a surface point depends on the properties of the light source as well as the surface containing the point.
a. True
b. False
Answer: a. True
Q5) In graphics, how many light source types are generally considered?
Answer: 3
These are the solution of Computer Graphics NPTEL Assignment 4 Answers
Q6) Lighting and shading represent two different ways of computing colors at a point.
a. True
b. False
Answer: a. True
Q7) Flat shading is more realistic coloring than gouraud shading (at the expense of increased computation).
a. True
b. False
Answer: b. False
Q8) In graphics there are typically three types of light sources : Point light source, Directional source and _______ source.
a. Ambient
b. Simple
c. Albedo
Answer: a. Ambient
These are the solution of Computer Graphics NPTEL Assignment 4 Answers
Q9) models work at the pixel-level, after the scene is mapped to the screen.
a. Lighting
b. Shading
Answer: b. Shading
Q10) We cannot perceive absolute difference in intensity value
a. True
b. False
Answer: a. True
These are the solution of Computer Graphics NPTEL Assignment 4 Answers
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