CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS)December 2013,Semester 5th,Third Year,BE IT, Information Technology

 CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) December 2013,Semester 5th,BE IT, Information Technology 

Con. 6773-13.                                                                                           LJ-11318

                                                        (3 Hours)                                 [Total Marks: 100]


N.B.: (1) Question No.1 is compulsory.
         (2) Solve any four questions from remaining any six questions.
         (3) Make suitable assumptions whenever necessary and state them clearly.

1. Solve any four :-
    (a) Derive 3D inverse transformation for translation and scaling. [5 Marks]
    (b) What are fractals? Derive an equation D = log N/log S. [5 Marks]
    (c) Explain different applications of computer Graphics and VR systems. [5 Marks]
    (d) Compare boundary fill and flood fill algorithms. [5 Marks]
    (e) What are 3D trackers? Enumerate the important tracker characteristics. [5 Marks]

2. (a) Explain Sutherland- Hodgeman polygon clipping algorithm with a suitable
         example. Discuss its advantages and disadvantages. [10 Marks]
    (b) Develop an algorithm to draw thick line kite with a thread. Justify the line
         drawing algorithm and VR Tool kit required for the above design. [10 Marks]

3. (a) Explain graphical rendering pipeline. [10 Marks]
    (b) With Mathematical representation and properties, explain Bezier Curves. [10 Marks]

4. (a) Show the transformation matrix for reflection about a line y=x is equivalent to reflection
         to X-axis followed by counter clockwise rotation of 90 degree. [10 Marks]
    (b) Explain physical modeling in VR systems. [10 Marks]

5. (a) With a suitable example, explain Cohen-Sutherland line clipping algorithm. [10 Marks]
    (b) For a unit cube situated at origin, apply one point perspective projection on Z = 0 plane,
         assuming centre of projection at Zc = 2 on Z-axis. [10 Marks]

6. (a) Explain all 2D transformations with examples. [10 Marks]
    (b) Describe computer Animation and the use of 2D and 3D morphing in it. [10 Marks]

7. Write notes on (any four):- [20 Marks]
    (a) Winding Number Method.
    (b) Le Grange Interpolation.
    (c) Raster Scan and Random Scan display.
    (d) Input and output devices used in VR systems.
    (e) CMY and RGB colour model.

Also see Computer graphics and virtual reality systems question papers for December 2012