SRM University 2007 B.Tech Computer Science and Engineering for COMPUTER GRAPHICS - Question Paper

DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING

CODE: YEAR:III
SUBJECT:COMPUTER GRAPHICS

UNIT-I
PART-A
1. What are the kinds of computer graphics ?
2. Why CRT is called as refresh CRT ?
3. Define persistence in CRT .
4. Define aspect ratio.
5. Define resolution.
6. What is bit map and pix map .
7. What is horizontal and vertical retrace.
8. What is display processor ?
9. What is scan conversion ?
10. What are the techniques used to produce color displays with CRT ?
11. Write short notes on beam-penetration method ?
12. Write short notes on shadow mask method ?
13. Write the operation of LCD .
14. Write the components used in virtual reality system.
15. What are the geometric transformations ?
16. What is scaling ?
17. What is rotation ?
18. What is translation ?
19. What is shear ?
20. What is reflection ?
21. What is meant by composite transformation ?
22. Write the steps to achive general pivot point rotation with graphics package.
23. What is the need of fixed point scaling ?
24. Write the steps to general fixed point scaling .
25. Prove that multiplication of transformation matrices for 2 successive rotation is commutative.
26. Prove that multiplication of transformation matrices for 2 successive translation is commutative.
27. Prove that multiplication of transformation matrices for 2 successive scaling is commutative.
28. Draw the general 3D transformation pipeline.
29. Write the basic projection methods ?
30. What is parallel projection ?
31. What is perspective projection ?
32. What are the advantages of parallel projection ?
33. What is projection reference point ?
34. What is depth queing ?
35. Translate polygon with co-ordinates A(2,5) ,B(7,10),C(10,2) by three units in X direction & four units in Y direction.
36. Translate the square A(5,5),B(5,5),C(5,15),D(15,15) by two units in a X direction & three units in Y direction.
37. Translate A(15,10),B(10,5),C(20,5) by one unit in X direction and three units in Y direction.
38. A point (4,3) in rotated counter clockwise by an angle of 45. obtain the rotation matrix & resulting point.


PART-B

1. Explain the operation of CRT.
2. Explain the raster scan.
3. Explain the random scan.
4. What are 2D transformations ? discuss every.
5. What are 3D transformations ? discuss every.
6. Explain the general 3D rotations for the subsequent cases
1. Rotation axis is parallel to 1 of coordinate axis.
2. Rotation axis is not parallel to 1 of coordinate axis
With their transformation matrices.

7. Explain the following:
1. 2D and 3D shear
2. 2D and 3D reflection
8. Explain the following:
1. Touch screen
2. 3d viewing devices
3. LCD











UNIT-II

PART-A

Earning:   Approval pending.