Computer Graphics 2072

Attempt all the questions.(6 x 10 = 60)

1. What is a computer graphics? Briefly explain the applications of computer graphics.

2. Use Bresenham's algorithm to draw a line having end points (25, 20) and (15, 10).

3. Construct the Bezier curve of order 3 and 4 polygon vertices A(1,1) B(2,3) C(4,3) and D(6,4).

4. Derive the Mid-point algorithm.

6. Explain the following term with practical applications.

a) 2D shearing

b) 3D viewing

7. What do you mean by homogeneous coordinates? Rotate a triangle A(5,6), B(6,2) and C(4,1) by 45 degree about an arbitrary pivot point (3,3).

OR

Explain in detail about Diffuse Reflection model.

8. What is projection? Differentiate between parallel and prospective projection.

9. Given a clipping window P(0,0), Q(30,20), S(0,20) use the Cohen Sutherland algorithm to determine the visible portion of the line A(10,30) and B(40,0).

10. Explain the basic steps for computer animation and its application in computer science.