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Posted By: madhavi Member Level: Silver Posted Date: 02 Jul 2008
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2007 Jawaharlal Nehru Technological University Mechanical Engineering iv B.Tech II semester Supplementary examinations, set no:2 june 2007 Question paper
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Code No: RR420306 COMPUTER GRAPHICS Set No:2
IV B.Tech II Semester Supplementary Examinations, June 2007
(Common to Mechanical Engineering and Production Engineering)
Time:3 Hours Max.Marks:80
Answer any Five Questions
All Questions carry equal marks
---------------
1.a) Explain the concepts of aliasing and anti - aliasing. How can the effects of aliasing be minimized?
b) Write short notes on frame buffer. [8+8]
2.Explain the following:
a) world, screen and normalized coordinates.
b) 2D graphics primitives. [8+8]
3. Prove that a line can be transformed by applying the transformation to the end points of the line and
then constructing a new line between the transformed end points. [16]
4.Derive the window-to-view port transformation equations by first scaling the window to the size of the
view port and then translating the scaled window to the view port position. [16]
5.Explain the Cohen-Sutherland algorithm for finding the category of a line segment. Show clearly how
each category is handled by the algorithm. [16]
6.a) Derive the transformation that rotates an object point ? degree about the x-axis. Write the matrix
representation for this rotation.
b) Write a short notes on parallel projections. [10+6]
7.Write about the following:
(a) Gourand shading.
(b) Painter’s algorithm. [8+8]
8. Describe Bezier surface generation technique with examples. [16]
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