**NPTEL Computer Graphics week 3 Assignment Answers 2023:- **All the Answers provided below to help the students as a reference, You must submit your assignment at your own knowledge.

## NPTEL Computer Graphics Week 3 Assignment Answers 2023

**1. What is the basic idea behind voxels in space partitioning methods?**A) Representing objects using a collection of 2D pixels

B) Representing objects using a collection of 3D cubes with uniform size

Answer :-For AnswerClick Here

**2. What does BSP stand for in space partitioning methods?**A) Binary Subdivision Procedure

B) Boundary Space Partitioning

C) Binary Space Partitioning

D) Base Structure Placement

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**3. What does CSG stand for, and how does it represent objects in space?**

A) Constructive Shape Graphics – It uses polygonal representation for objects.

B) Constructive Solid Geometry – It relies on joining spaces using Boolean operators to represent objects.

C) Composite Scene Generation – It represents objects using point clouds.

D) Comprehensive Space Grids – It divides objects using octrees for representation.

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**4. Which of the following operations is NOT a basic transformation in modeling transformations?**A) Translation (T)

B) Rotation (R)

C) Scaling (S)

D) Shearing (Sh)

Answer :-

**5. What is the mathematical representation of scaling for a point (x, y)?**

A) (x+s_{x}, y+s_{y})

B) (x∗s_{x}, y∗s_{y})

C) (s_{x}∗x, s_{y}∗y)

D) (x/s_{x}, y/s_{y})

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**6. Modeling transformations transform objects from local/object coordinates to world coordinate system**

A) True

B) False

Answer :-

**7. What is the general approach to apply multiple basic transformations with respect to an arbitrary fixed point?**A) Scale, Translate, Scale back

B) Translate to origin, Perform transformation, Translate back to original position

C) Rotate, Scale, Shear

D) Translate, Rotate, Scale

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**8. In which sequence should multiple geometric transformations be applied to get the correct result?**A) Right-to-left

B) Left-to-right

Answer :-

**9. What is the purpose of the composite matrix in 3D transformations?**

A) To perform multiple shearing transformations on an object

B) To combine translation, rotation, and scaling transformations into a single matrix

C) To convert 3D points to 2D points

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**10. In space partitioning, large memory is required to store voxel-grid information**A) True

B) False

Answer :-

Course Name | Computer Graphics |

Category | NPTEL Assignment Answer |

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