Himachal Pradesh University (HPU) 2007-3rd Sem B.Tech Information Technology - Question Paper
Tuesday, 22 January 2013 07:35Web
B.Tech. IIIrd Semester exam
Computer Graphics(IT)
Paper: IT-3004
Note: Attempt 5 ques. in all, selecting 1 every from parts A,B,C and D. part E is compulsory.
Section-A
1.(a) discuss the working of the following:
(i) Joystick.
(ii)Image Scanner. [10]
(b) Differentiate ranging from Impact and Non-Impact printers. provide examples of every. Also discuss the working of Laser printer. [10]
2. (a) discuss Shadow-Mask method of producing color on CRT monitors. [10]
(b) elaborate raster scan systems? Briefly explain their working and architechture. [10]
Section-B
3. (a) discuss Midpoint Eclipse Algorithm. [12]
(b) Briefly explain the steps needed to scan convert a circle using trigonometric method.
4. (a) What do you understand by Affine Transformations? elaborate their properties? [8]
(b) What is Line Clipping? discuss any 1 algorithm to clip lines. [12]
Section-C
5. (a) discuss z-buffer Algorithm. [14]
(b) Write a short note on 3D clipping. [6]
6. Discuss in detail the perspective and parallel projections, and derive their transformation matrices. [20]
Section- D
7. What is Animation? explain principles of animation. Also explain basic animation techniques and issues peculiar to animation. [20]
8. Write short notes on the following:
(i) Diffuse Reflection. [10]
(ii) Specular Reflection. [10]
Section- E
9. Attempt the subsequent questions:
(i) What is the use of focusing system and accelerating anode in CRT?
(ii) Define Persistence and Resolution.
(iii) What are the advantages of flat panel displays over CRT?
(iv) What are the advantages of DDA algorithm over Bresenham’s line drawing algorithm?
(v) What do you mean by scan conversion?
(vi) What is uniform and differential scaling?
(vii) What are four connected and eight connected approaches of area filling?
(viii) Give matrix for 3D shear transformation.
(ix) Briefly explain constant intensity shading method.
(x) What is Lookup Table? What is its use? [2*10=20]
| Earning: Approval pending. |
