Jawaharlal Nehru Technological University Hyderabad 2010-3rd Sem M.C.A Code No: 35 R06 -ester Supplementary s y/ust COMPUTER GRAPHICS - Question Paper

 

 

 

Code No: 35

 

R06

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA-III Semester Supplementary Examinations July/August 2010

COMPUTER GRAPHICS

Time: 3hours Max.Marks:60

Answer any Five questions

All questions carry equal Marks

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1.a)

 

b)

 

 

 

 

2.a)

b)

 

 

 

3.a)

 

 

 

 

b)

 

 

 

4.a)

b)

 

 

 

5.a)

 

b)

 

 

 

6.a)

b)

 

 

 

7.a)

b)

 

 

 

8.a)

 

b)

Explain the construction and functioning of cathode ray tube (CRT) display

devices.

If the raster system resolution is 640 by 480, how many pixels could be accessed

per second by a display controller that refreshes the screen at a rate of 60 frames

per second?

 

Write the algorithm for generalized Bresenhams algorithm suitable for any slope.

What data structures are used in the implementation of scan-line algorithms?

Illustrate the scan-line polygon filling algorithm with suitable example.

 

Show that the two rotation matrices R (1 ) and R ( 2 ) are commutative by

showing:

R (1 ).R ( 2 ) = R ( 2 ).R (1 )

Determine the form of the transformation matrix for a reflection about an arbitrary

line with equation y = mx + b

 

Derive the window to view port transformation matrix.

Explain with either flow diagram or algorithm the Cohen-Sutherland polygon

clipping method.

 

Determine the Bazier blending function for five control points. Plot each function

and label the maximum and minimum values.

Explain the steps involved in Phong shading algorithm. What considerations are

to be followed to make the algorithm, time efficient?

 

Derive the transformation matrix for aligning an arbitrary axis with z-axis.

Explain how the above transformation matrix is helpful for reflecting an object

about an arbitrary plane.

 

What are the steps involved in depth-buffer method to display visible surfaces.

What is the principle followed in area-subdivision algorithm? What are its merits

and demerits?

 

What are the steps involved in the design of an animation sequence. Give a brief

note about each.

What are the design steps in the simulation of a bouncing ball?

 

 

 

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