## NPTEL Computer Graphics Week 3 Assignment Answers 2024

1. Representation of transformations in equation form is not very useful in developing modular graphics packages/libraries.

a. True

b. False

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2. Select two correct options: Voxel is a______________

a. square inside of a 2D space

b. position inside a 3D grid

c. cube inside of a 3D space

d. position inside a 2D grid

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3. The transformation in which object moves without deformation

a. rotation

b. scaling

c. shearing

d. all of the above

Answer :-

4. In order to obtain composite matrix we multiply basic matrix in sequence. In this case **____________________________________________________________**.

a. we follow right-to-left rule in forming the sequence

b. we follow left-to-right rule in forming the sequence

c. we can follow either right-to-left or left-to-right rule in forming the sequence

d. any order can be considered in forming the sequence, as we are multiplying the matrices

Answer :-

5. In homogeneous coordinate system, a 2D point p(x, y) represented with **____________** element vector.

a. 2

b. 3

c. 4

d. 5

Answer :-

6. What does BSP stand for in space partitioning methods?

a. Binary Subdivision Procedure

b. Boundary Space Partitioning

c. Binary Space Partitioning

d. Base Structure Placemen

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7. In which sequence should multiple geometric transformations be applied to get the correct result?

a. Right-to-left

b. Left-to-right

Answer :-

8. In space partitioning, large memory is required to store voxel-grid information

a. True

b. False

Answer :-

9. Matrix multiplication is commutative

a. True

b. False

Answer :-

10. When same scaling factor is used along both X and Y direction it is called

a. Uniform scaling

b. Differential scaling

c. Equilateral scaling

d. Perpendicular scaling

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