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Posted Date: 25 Jun 2008 Posted By: Sunil Reddy Member Level: Platinum
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2008 Jawaharlal Nehru Technological University Computer Science & Engineering III B.Tech II Semester Regular Examinations, Apr/May 2008 COMPUTER GRAPHICS Question paper
Code No: R05320501
Set No. 4
III B.Tech II Semester Regular Examinations, Apr/May 2008
COMPUTER GRAPHICS
(Computer Science & Engineering)
Time: 3 hours
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
Max Marks: 80
1. (a) Assuming that a certain full-color (24-bit per pixel) RGB raster system has
a 512 by 512 frame bu?er, how many distinct color choices (intensity levels)
would be available.
(b) Explain how virtual reality systems can be used in design applications. [10+6]
2. (a) Write an algorithm for generating the intermediate points using Bresenham?s
algorithm when two-end points are given as input.
(b) Write an algorithm for polyline function which calls the above algorithm, given
any number (n) of input points. A single point to be plotted when n=1. [8+8]
3. Show that the transformation matrix for a re?ection about the line y = -x is equiv-
alent to a re?ection relative to the y-axis followed by a counter clockwise rotation
of 900.
[16]
4. (a) What are the basic transformation techniques used in Window-to-Viewport
transformation? Derive the viewing transformation matrix.
(b) What is the signi?cance of 4-bit region code is Cohen-Sutherland algorithm?
[8+8]
5. (a) State the boundary conditions that de?nes the Hermite curve section.
(b) Derive the Hermite matrix.
(c) Explain how the Hermite blending functions are derived.
[4+4+8]
6. (a) What is the procedure for re?ecting an about an arbitrarily selected plane.
(b) What are the characterstics of perspective projections?
[8+8]
7. (a) How does the basic scan-line method determine which surfaces are hidden.
(b) How does edge coherence help to reduce computational e?ort.
[8+8]
8. (a) Explain how the linear interpolation is implemented when the key-frame po-
sitions of an object are given.
(b) Describe linear list notation of animation languages.
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