Download JNTUA MCA 2019 May Reg-Supply 4th Sem 9F00404c Computer Graphics Question Paper

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Code: 9F00404c

MCA IV Semester Supplementary Examinations May 2019

COMPUTER GRAPHICS

(For 2009, 2010, 2011, 2012 (LC), 2013, 2014, 2015 & 2016 admitted batches only)

Time: 3 hours Max. Marks: 60

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Answer any FIVE questions

All questions carry equal marks

1. Discuss the use of computer graphics in education and training fields.
2. Explain in brief about the following input devices:
   1. Joystick.
   2. Data glove.

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   3. Mouse.
3. Devise and write an algorithm for generating a circle using mid-point circle algorithm. Demonstrate the algorithm for a circle of radius r = 10 and center at (0, 0).
4. Devise and write an algorithm to scan convert the interior of a specified ellipse into a solid color.
5. Show that the composition of two 2D rotations is additive.

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6. Compare the number of arithmetic operations performed in Cohen-Sutherland and Liang-Barsky line clipping algorithms for any two line orientations relative to a clipping window. Which is better? Justify your answer.
7. Explain in brief about the 2D transformations between two coordinate systems.
8. Explain the Sutherland-Hodgeman polygon-clipping algorithm (2D) with a suitable example.
9. Define an efficient polygon representation for a cylinder. Justify your choice of representation.
10. Determine the Bezier blending functions for five control points. Plot each function and label maximum and minimum values.

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11. Derive the 3D-transformation matrix for scaling an object by a scaling factor ‘S’ in a direction defined by the direction angles o, § & y.
12. Explain the depth-buffer method for visible surface direction.
13. Write short notes on the following:
    1. Computer animation languages.
    2. Design of animation sequences.
    3. Raster animations.

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