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Department of Computer Science and Engineering

Sub. Name: Computer Graphics                                                                   Sub.Code: CS6504

Max.Marks: 50                                                                                         Time: 90 min

Department: Computer Science and Engineering                             Sem/Year: V/III       Date:

Internal Assessment test II

PART – A

   Answer all the questions                                       5 x 2 =10

1.                                          What is uniform and differential scaling?(CO2)

2.               Define clipping .(CO2)

3.               What is shear? (CO2)

4.               What is called a convex hull?(CO3)

5.               Define viewing in 3D .(CO3)

             PART – B                                                       13 x 2 =26

6.  Explain the window to viewport coordinate transformation. (CO2)13 (OR)

7. Explain Cohen-Sutherland Line clipping algorithm. (CO2) 13

8 With suitable examples, explain all 3D transformations (CO3)13 (OR)

9. Write notes on 3D viewing. (CO3) 13
                                                                    PART – C

10. (i) Clip the given line A(1,3) B(4,1) against a window P(2,2) Q(5,2) R(5,4) S(2,4) using Liang Barsky line clipping algorithm  (CO2)

Department of Computer Science and Engineering

Sub. Name: Computer Graphics                                                                   Sub.Code: CS6504

Max.Marks: 50                                                                                         Time: 90 min

Department: Computer Science and Engineering                             Sem/Year: V/III       Date:

Internal Assessment test II

PART – A

   Answer all the questions                                       5 x 2 =10

1.             What is shear?(CO2)

2.            What is affine transformation?(CO2)

3.            What are the various polygon clipping algorithms?(CO2)

4.            Define quadric surfaces. (CO3)

5.            Define Octree.(CO3)

             PART – B                                                       13 x 2 =26

6.  Discuss the various surface detection methods in detail.. (CO3)13 (OR)

7. Explain the various clipping operations (CO2) 13

1.   8 Explain the various polygon clipping algorithm. (CO2)13 (OR)

9. Differentiate parallel and perspective projections and derive their projection matrices (CO3) 13
                                                                    PART – C

10. (i) Clip the given line A(1,3) B(4,1) against a window P(2,2) Q(5,2) R(5,4) S(2,4) using Liang Barsky line clipping algorithm  (CO2)