Download GTU BE/B.Tech 2019 Winter 6th Sem New 2160703 Computer Graphics Question Paper

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Subject Code: 2160703

GUJARAT TECHNOLOGICAL UNIVERSITY

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BE - SEMESTER- VI (New) EXAMINATION — WINTER 2019

Subject Name: Computer Graphics

Date: 12/12/2019

Time: 02:30 PM TO 05:00 PM

Total Marks: 70

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. 1. Define:
      1. Ambient Light

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      2. Rasterization
      3. Aspect Ratio
   2. Compare Raster scan system and Random scan system.
   3. Explain Beam Penetration method and Shadow Mask method with diagram.

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   4. MARKS
   5. 03
   6. 04
   7. 07

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2. 1. Briefly explain any three methods of Character Generation.
   2. Explain Inside Outside test.
   3. Write Bresenham’s line drawing algorithm with all necessary derivations.
   4. 03
   5. 04

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   6. 07

   OR

   1. Write DDA line drawing algorithm with all necessary derivations.
   2. Explain basic 2D transformation.
   3. Rotate triangle ABC 45° clockwise with coordinates A(10,10), B(15,15), C(20,10) about point B.

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   4. 03
   5. 04
   6. 07
3. 1. Explain Sutherland-Hodgeman polygon clipping with example.

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   2. 03
   3. 04
   4. 07

   OR

   1. Explain 2D Reflection and Shearing transformation.

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   2. Scale quadrilateral ABCD, 2 unit in X-direction and 3 unit in Y-direction with coordinates A(5,5); B(5,15), C(10,15), D(10,5) while keeping point A at fix position.
   3. 03
   4. 04
   5. 07

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4. 1. Explain NLN line clipping.
   2. Explain Interpolation and Approximation splines.
   3. Explain Boundary Fill algorithm.
   4. 03
   5. 04

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   6. 07
5. 1. Write and explain 3D display methods.
   2. 03
   3. 04

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   4. 07

   OR

   1. Write short note on Polygon Meshes.
   2. Explain general 3D Viewing Pipeline.
   3. What is Bezier Curve? Define properties of Bezier Curve.

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   4. 03
   5. 04
   6. 07
6. 1. Explain properties of Light.

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   2. Explain RGB color model.
   3. Derive transformation matrix for General Parallel-Projection transformation.
   4. 03
   5. 04
   6. 07

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   OR

   1. Explain Perspective-Projection.
   2. Explain YIQ color model
   3. Explain Depth Buffer method for visible surface detection.
   4. 03

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   5. 04
   6. 07

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