2011 Rajasthan Technical University B.Tech 7 Semester Computer science & engineering "Computer Graphics & Mulitmedia Techniques" question paper

Question Paper Details:


University: Rajasthan Technical University
Course: B.Tech Computer science & engineering
Subject Computer Graphics & Mulitmedia Techniques
Exam Year:  Nov-Dec 2011
Year or Semester: Fourth year/ Seventh Semester
Paper Code: 7E4241

Unit-I
1. a) What is scan conversion. Explain Raster Scan system  with the help of block diagram. [Marks 8]
    b) In a Raster system with resolution 2560*2048. How many pixels could be accessed per second by a display controller that Refresh the screen at a rate of 60 frames per second. Also calculate access time per pixel in the system. [Marks 8]

OR

1. a) Explain Bresenham’s Line Drawing Algorithm. Also write it’s procedure in any programming language.
        [Marks 8]
    b) Explain basic principle to draw a circle. Also Explain mid-point circle Algorithm. [Marks 8]

Unit-II

2. a) What is the need of transformation’s between coordinate system. Explain with example. [Marks 8]
    b) Derive a formula to Rotate a point by theta degree.   [Marks 8]

OR

2. a) Explain Cohen-Sutherland line clipping algorithm with region code details. [Marks 8]
   b) Generate Transformation Matrix for all possible 2D Reflections.   [Marks 8]


Unit-III

3. Implement depth Buffer Algorithm to display visible surfaces of a given polyhedron. Is there any relation in definition of the object and storage requirements of the depth buffer? Explain.  [Marks 16]

OR

3. Write a procedure to display 2D, cubic Bezier curves given a set of 4 control points in XY plane. [Marks 16]

Unit-IV

4.  Write a Routine to convert RGB color model to HSV color model. [Marks 16]

OR

4. Explain phong and fast phong shading using a suitable object. [Marks 16]

Unit-V

5. Write short notes on:-
    a) Difference between SCSI and IDE. 
   b) Authoring Tools.                                       [Marks 8*2]

OR

5. Write short notes on:-
   a) MPEG file format 
   b) Animation techniques.                             [Marks 8*2]

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