Computer Graphics - May 2015

Computer Engineering (Semester 4)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.

1 (a) What are aliasing and antialiasing? Explain any one antialiasing method. (5 marks)

1 (b) What are the disadvantages of DDA algorithm? (5 marks)

1 (c) What is viewing tranformation? (5 marks)

1 (d) Define Shearing and give example. (5 marks)

2 (a) Explain the midpoint circle generating algorithm. (8 marks)

2 (b) Explain the steps used in rotation of 2-D object about an arbitrary axis and derive the matrices of same. (12 marks)

3 (a) Explain Liang-Barsky line clipping algorithm with suitable example. (10 marks)

3 (b) Explain Sutherland-Hodgeman polygon Clipping algorithm in detail. (10 marks)

4 (a) What are Parallel and Perspective projection and derive the matrix for perspective projection. (10 marks)

4 (b) Explain the properties of Bezier curves. (10 marks)

5 (a) What is the use of Scan line method and explain all the steps. (10 marks)

5 (b) Define Koch curve? How do you construct the Koch curve? (10 marks)

Write short note on any four:

6 (a) Open CI. (5 marks)

6 (b) Area subdivision method. (5 marks)

6 (c) Composite transmformation (5 marks)

6 (d) Sweep representations. (5 marks)

6 (e) Flood fill algorithm. (5 marks)