Download AKTU B-Tech 4th Sem 2015-16 NCS 403 Computer Graphics Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 4th Semester (Fourth Semester) 2015-16 NCS 403 Computer Graphics Question Paper

Printed Pages: 3 NCS-403
(Following Paper ID and Roll No. to be ?lled in your
Answer Books)
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B.TECH.
Theory Examination (Semester-IV) 2015-16
COMPUTER GRAPHICS
?me .' 3 Hours Max. marks : 100
Note: Attempt questions from all Sections as per directions.
Section-A
Attempt all parts of this section. Answer in brief.[2><10=20]
1. (a) Explain the role of pixel and frame buffer in graphics
devices.
(b) What do you understand by the video controller?
(0) Justify the composite transformation.
((1) What is specular re?ection?
(e) Write the properties of B-Spline curve.
(1) P.T.O.
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(a)
Cb)
(C)
(d)
(f) What do you understand by the Raster scan display?
(g) Write the rotation matrix about x, y and z axis in 3D.
(h) Write the Bresenham's algorithm of a line.
(i) Give window to viewport transformation matrix.
(j) What is the persistence of phosphor?
Section-B
Attempt any five questions from this sec?on.[10xs?50]
Compare the computation done in digital differential analyzer
(DDA) algon'thm with Bresenham's line drawing algon'thm.
Write a procedure for rotation. Drive re?ection metrics for
re?ection about X axis.
Consider two raster systems with resolutions of 640 X 480
and 1280 X 1024. How many pixels could be accessed per
second in each of these systems by a display controller that
refreshes the screen at a rate of 60 frames per second?
Write an algorithm for Cohen?Sutherland line clipping algo-
rithm. Compare it with Liang-Barsky line clipping algorithm.
(2)
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(f)
(g)
(h)
Attempt any two questions from this section.
3.
What is window to view point coordinate transformation?
What are the issues related to multiple windowing?
Explain parallel and perspective proj ection. Justify the depth
outing projection for 3-D display methods.
What are the criteria that should be satis?ed by a good line
drawing algorithm? Explain in detail.
Explain the midpoint circle generation algorithm.
Section-C
[ISXZ=30]
List the advantages and disadvantages of back-face detection
and A-bu??er method. Write the algorithm for back-face detec-
tion
Explain the different illumination methods and different render-
ing methods in detail. Write its advantages and disadvantages.
Compare and contrast among spline, B-spline and Bezier a1-
gorithms for curve generation and write the algon'thm for Bezier
curve generation.
(3) P.T.O.
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