Cochin University of Science and Techology (CUST) 2006-6th Sem B.Tech Information Technology ,, IT 605 Computer Graphics - Question Paper

8TS -VI -<S) 06-01? {R)

B.Tech. Degree VI Semester (Supplementary)

Examination, June 2006

IT 605 COMPUTER GRAPHICS (t99> Admisitons)

Maximum Marks: 100

Explain (he concepts and characteristics of computer graphics Give a brief survey

of the area of applications of computer graphics.    (10)

Briefly explain any two video display devices    (10)

OR

Describeanytw'oline-drawingalgorithmtcomparctheirmeritsand demerits    (10)

Explain an algorithm Co* generating an ellipse.    (10)

Derive a general window to view port transformation.    (7) What t a homogeneous co-ordinate¹ Explain the advantage of using such co-ordinates

in computer graphics    (6)

Derive the transformation matrix for reflection about the line y-Jx*4.    (7) .OR

Explain a polygon clipping algorism.    (10)

Derive the transformation matrix for 2D rotation about an arbitrary axis.    (10)

What an'he properties ofa Bezier curves? Explain.    (10)

Explain <*n fractal geometry metho*!    (10)

OR

Write \hon notes on-.

(i)    B spline surface

(ii)    Octrees

(iii)    Ray casting method for solid modeling

(iv)    Sweep representation    (20)

Explain the steps involved in rotating a 3D object about an arbitrary axis through an arbitrary point. Derive the transformation matrices involved.    (IS)

What is the role of concatenation in three dimensional transformation? Why should the order of application of transfotmation be preserved    (3)

OR

Exptam the following terms with examples

(i)    Parallel projectisn

(ii)    Perspective projection    (M) Discuss on the term intensity cue. (6)

Compere and contrast object space and image space approaches for hidden surface elimination Also explain the depth bufTer method    (12)

What cs the difference between CMY and RGB color models ?    (8)

OR

Describe the Goraud's incremental shading algorithm Whal are major defects of the image* produced by this algorithm    (10)

Explain with examples how the animation are created    (10)

IX

Attachment: cochin-university-of-science-and-techology--cust--2006-b-tech-information-technology-37283-1.jpg

Earning:   Approval pending.