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

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NCS-403

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(Following Paper ID and Roll No. to be filled in your Answer Books)

Paper ID : 110411 Roll No.

B.TECH.

Theory Examination (Semester-IV) 2015-16

COMPUTER GRAPHICS

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Time: 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.

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2. (b) What do you understand by the video controller?
3. (c) Justify the composite transformation.
4. (d) What is specular reflection?
5. (e) Write the properties of B-Spline curve.

P.T.O.

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Section-B

Attempt any five questions from this section. [10×5=50]

1. (a) Compare the computation done in digital differential analyzer (DDA) algorithm with Bresenham's line drawing algorithm.
2. (b) Write a procedure for rotation. Drive reflection metrics for reflection about X axis.

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3. Consider two raster systems with resolutions of 640 × 480 and 1280 × 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?
4. Write an algorithm for Cohen-Sutherland line clipping algorithm. Compare it with Liang-Barsky line clipping algorithm.

P.T.O.

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Section-C

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Attempt any two questions from this section. [15×2=30]

1. List the advantages and disadvantages of back-face detection and A-buffer method. Write the algorithm for back-face detection.
2. Explain the different illumination methods and different rendering methods in detail. Write its advantages and disadvantages.
3. Compare and contrast among spline, B-spline and Bezier algorithms for curve generation and write the algorithm for Bezier curve generation.

P.T.O.

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