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Tuesday, April 15, 2014

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) December 2012 Semester 5th Third Year BE IT Information Technology

Con. 7588-12.                                                                                      KR-5147
                                                    (3 Hours)                                 [ Total Marks: 100]

N.B. (1) Question No. 1 is compulsory.
        (2) Attempt any four out of remaining six questions.
        (3) Assume suitable data if necessary and state the assumptions clearly.

1. Solve any four :-
(a) Draw and explain basic block diagram of virtual system. [5 Marks]
(b) Explain the significance of Homogeneous Co-ordinate System [5 Marks]
        (c) Rotate a triangle ABC by an angle 30◦ where the triangle has co-ordinates
                    A(0,0), B(10, 2) and C(7, 4) [5 Marks]
    (d) Compare DDA line algorithm with Bresecnham's algorithm. [5 Marks]
(e) List at least three input and three otput devices of VR system and explain any
             one device in detail. [5 Marks]

2. (a) Prove that a shear transform can be expressed in items of rotation and scaling
         operations. [7 Marks]
    (b) Specify highlights and drawback of Bezier curves. Construct the Bezier curve
         of order three control points P1 (0,0), P2(1, 3(4,2) and P4(2, 1). generate
         at least five points on the curve [13 Marks]

3. (a) Describe any two VR architectures with neat diagram. [10 Marks]
(b) What are fractals ? Derive an equation D = log N/log S. Outline the procedure of generating
         Koch curve or Hilbert curve. [10 Marks]

4. (a) Develop a single transformation matrix which does the following on given object :- [6 Marks]
            (i) Reducse the size by 1/2
            (ii) Rotates about Y axis by (-30◦)
            (iii) Performs a single point perspective transformation projection to z = 0
                  and z = 10.
    (b) Derive a 3D inverse transformattion for translation and scaling. [4 Marks]

    (c) Explain with example Sutherland-Hodgeman polygon clipping algorithm. List the short
        comings of this method, if any. [10 Marks]

5. (a) What are the different types of projection ? Dderive the matrix reperesentation for
         perspective transformation in XY plane and on negative Z-axis. [10 Marks]
    (b) Explain flood fill algorithm using four and cight connected method with suitable example and
         diagrams. Compare the same with boundry fill algorithm.[10 Marks]

6. (a) Compare the capabilities and limitations of geomatri and kinematic modeling techniques.
    (b) Compare -
              (i) Mesh and features based warping [ 5Marks]
              (ii) 2D and 3D mprphing. [ 5Marks]

7 (a) Using Liang Barsky Algorithm, find the clipping co-ordinates of line segment with end
        co-ordinate      A(-10, 50) and B(30, 80) against the window (Xmin=-30, Ymin =10)
        (Xmax = 20, y max -60). [10 Marks]
   (b) Write detailed note on VR applications. [10 Marks]

Also see Computer graphics and virtual reality systems question papers for December 2010

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) December 2010 Semester 5th Third Year BE IT Information Technology

Con.6022-10 (REVISED COURSE) GT-6798.

(3 Hours) [Total Marks: 100]

N.B.: (1) Question No. 1 is compulsory.
(2) Solve any four questions from remaining question No.2 to question No.7
(3) Draw neat diagram wherever necessary.

1. (a) Explain bitmap and vector based graphics. [5 Marks]
(b) Explain the Two-point perspective transformation. [5 Marks]
(c) Describe in brief physical modeling. [5 Marks]
(d) Compare the CMY and RGB color model. [5 Marks]

2. (a) Write the DDA line drawing algorithm. Calculate the pixel co-ordinate of line AB using
DDA algorithm. Where A=(0,0) and B=(4,6). [10 Marks]
(b) Write the matrices and draw the diagrams for scaling, rotation of an 3D object. [10 Marks]

3. (a) Describe the Sutherland-Cohen line clipping algorithm used for 3D. [10 Marks]
(b) Describe Halftoning, Thresholding and Dithering in detail. [10 Marks]

4. (a) Explain LeGrange interpolated curves. [10 Marks]
(b) Describe the various warping techniques. [10 Marks]

5. (a) Descibe the design of a virtual reality System. Also explain types of virtual
reality System. [10 Marks]
(b) Explain the graphical rendering pipeline. [10 Marks]

6. (a) Describe the input and out put devices for Virtual Reality. [10 Marks]
(b) Explain in detail the Sun Blade 1000 Architecture. [10 Marks]
7. (a) Explain the Winding Number Method. [5 Marks]
(b) Explain virtual reality programming with reference to JAVA 3D. [5 Marks]
(c) Describe the Motion Control Methods. [5 Marks]
(d) Explain the applications of virtual Reality in military and machine. [5 Marks]

Also see Computer graphics and virtual reality systems question papers for May 2011

Monday, April 14, 2014

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) May 2011 Semester 5th Third Year BE IT Information Technology

Con.2948-11. RK-2166

(3 Hours) [Total Marks: 100]

1. Question No.1 is compulsory.
2. Solve any four questions from remaining six questions.
3. Make suitable assumption wherever necessary and state them clearly.
4. Figure to the right indicate full marks.

1. (a) What are different applications of Computer Graphics? [5 Marks]
(b) Explain even-odd method for inside test of polygon. [5 marks]
(c) Write a Bresenham's line drawing algorithm. Calculate the pixel coordinates of
line PQ using Bresenham's algorithm, where P1920,20) and Q=(10,12). [10 Marks]

2. (a) Explain scan line polygon fill algorithm. [10 Marks]
(b) Explain parallel and Perspective Projection. [5 Marks]
(c) Derive the amtrix for Rotation about an arbitary point for 2D Rotation. [5 Marks]

3. (a) Describe Virtual Reality. Explain types of VR systems. [10 Marks]
(b) Derive mathematical representation for Bezier curve. State their properties. [10 Marks]

4. (a) Explain Cohen-Sutherland line clipping algorithm with example. [10 Marks]
(b) Explain Boundary Fill and Flood Fill algorithm using 8-connected approach and
state their advantages and disadvantages. [10 Marks]

5. (a) Describe Halftoning, Thresholding and Dithering in detail. [10 Marks]
(b) Describe the various wrapping techniques. [10 Marks]

6. (a) Explain the graphical rendering pipeline. [10 Marks]
(b) Explain in detail any VR Toolkit. [10 Marks]

7. (a) Explain Raster scan display and Random scan display. [5 Marks]
(b) What are advantages of 3D morphing over 2D morphing. [5 Marks]
(c) List various application of VR, explain any two. [5 Marks]
(d) Compare the RGB and CMY clor model. [5 Marks]

Also see Computer graphics and virtual reality systems question papers for May 2010

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) May 2012 Semester 5th Third Year BE IT Information Technology

Con.3917-12 GN-7043

(3 Hours) [Total Marks: 100]

N.B.: (1) Question No.1 is compulsory.
(2) Attempt any four questions from remaining six.

1. (a) What is meant by Homogeneous matrix representation? [5 Marks]
(b) Different applications of computer graphics. [5 Marks]
(c) Describe in brief physical modelling. [5 Marks]
(d) List various workstation based architecture. [5 Marks]

2. (a) What is meant by virtual reality? Explain type of virtual reality system. [10 Marks]
(b) Explain Cohen-Sutherland line clipping Algorithm with example. [10 Marks]

3. (a) Explain Boundary fill and flood fill algorithm using and connect approach compare them
for their performance. [10 Marks]
(b) Explain graphical rendering pipeline. [10 Marks]

4. (a) Write DDA line Drawing Algorithm. Calculate the pixel co-ordinate of line AB using DDA
Algo where A(0,0) and B(4,6). [10 Marks]
(b) Explain in detail Sun Blade 1000 Architecture. [10 Marks]

5. (a) Explain scaling, rotation and translation with example. [10 Marks]
(b) Describe input and output device used for virtual reality. [10 Marks]

6. (a) Explain virtual programming with reference to Java 3D.Also describe motion control
methods. [10 Marks]
(b) Explain line clipping, text clipping and point clipping. [10 Marks]

7. Write Short Notes on:- [20 Marks]
(a) Fractal in computer graphics.
(b) Application of virtual reality in military and medicine.
(c) Computer Animation.
(d) RGB and CMY colour model.

Also see Computer graphics and virtual reality systems question papers for December 2009

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) December 2009 Semester 5th Third Year BE IT Information Technology

Con.5323-09 (Revised Course) SP-8652

(3 Hours) [Total: 100 Marks]

N.B.: (1) Question No. 1 is compulsory.
(2) Solve any four questions from the remaining any six questions.
(3) Figures to the right indicates full marks.
(4) Make suitable assumptions wherever necessary and state them clearly.

1. (a) Derive the Bresenham's line drawing algorithm. What are its advantages? [10 Marks]
(b) Differentiate between Raster scan display and Random Scan display. [5 Marks]
(c) Write a short note on Homogeneous co-ordinate system. [5 Marks]

2. (a) Explain Flood Fill Algorithm using 8-connected approach. What are its advantages over
Boundary Fill Algorithm? [7 Marks]
(b) What are 3D trackers? Enumerate some important tracker characteristics. [5 Marks]
(c) Show that transformation matrix for a reflection about a line y=x is equivalent to reflection
to x-axis followed by counter clockwise rotation of 90 degree. [8 Marks]

3. (a) Write detailed note on 3D Rotation about an axis that is not parallel to one of the
co-ordinate axes. [10 Marks]
(b) What kind of Bounding Boxes exists? What are they used for? Explain undetected collision
and state ways to alleviate the problem of undetected collision. [10 Marks]

4. (a) Explain in detail any VR Toolkit. [10 Marks]
(b) List various types of computing architectures of VR and explain any one in detail. [10 Marks]

5. (a) What are different types of projections? Derive the matrix representation for
perspective transformation in XY-plane and on negative Z-axis. [10 Marks]
(b) Explain LeGrange Interpolation curve in detail. [10 Marks]

6. (a) Let R be the rectangular window whose lower left hand corner is at L(-3, 1) and upper right
corner is at R(2, 6). Find the region codes for the endpoints and use Cohen-Sutherland
algorithm to clip the line segments. [10 Marks]
Coordinates for line segments are:-
For line AB A (-4, 2) and B (-1,7)
CD C (-1, 5) and D (3, 8)
EF E (-2, 3) and F ((1, 2)
(b) Derive the mathematical representation for Bezier curve and state their properties. [10 Marks]

7. (a) Write a short notes on any two of the following:- [10 Marks]
(i) Compare mesh and feature based warping method.
(ii) What are the advantages of 3D morphing over 2D morphing?
(iii) TPS based image warping.
(b) Explain any VR application with suitable example. [10 Marks]

Also see Computer graphics and virtual reality systems question papers for December 2011

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) December 2011 Semester 5th Third Year BE IT Information Technology

CGVRS(COMPUTER GRAPHICS AND VIRTUAL REALITY SYSTEMS) December 2011,Semester 5th,Third Year,BE IT, Information Technology

1. (a) What is meant by Homogeneous Matrix representation. [20 Marks]
(b) List various workstation based architecture.
(c) What is meant by Geometric modelling in case of virtual reality.
(d) What are Bezier curves

2. (a) Explain the type of co-ordinate systems used in computer graphics. [20 Marks]
(b) What are the five classic component of Virtual Reality System.
(c) How is the 3-D world viewed.
(d) What are the PC graphic accelerators.

3. (a) Give various Applications of Computer graphics. [20 Marks]
(b) Explain translation of a line in detail.
(c) Explain method of region code generation in case of Cohen-Sutherland line
clipping Algorithm.
(d) What is the advantage of using virtual reality.

4. (a) For A(X1,Y1) and B(X2,Y2) as endpoints, use DDA Algorithm to draw a line
joining them. [20 Marks]
(b) What are the different types of reflections?
(c) Explain 3D trackers performance parameters like jitter and drift.
(d) Explain the concept of collision detection and surface deformation in case of
physical modeling in vertual reality

5. (a) Explain the viewing transformation model in 2D. [20 Marks]
(b) For the given shape show how inside outside test is used to find point P.

(c) List various gesture interface devices and explain any one.
(d) What is meant by scaling of a object.

6. (a) Explain the concept of Text Clipping. [20 Marks]
(b) Explain the Term Personal graphic displays.
(c) What is meant by Computer Animation.
(d) Compare boundary fill and flood fill algorithm.

7. (a) Explain the algorithm for Midpoint Subdivision line clipping method. [20 Marks]
(b) Write short note on haptic 1/0 interface device.
(c) What are fractals in computer graphics.
(d) Explain the graphics rendering pipeline.

Also see Computer graphics and virtual reality systems question papers for May 2013

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

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

Con.6971-13 GS-8925

(3 Hours) [Total Marks: 100]

N.B.: (1) Question No.1 is compulsory.
(2) Solve any four questions from remaining Question Nos.2 to 7.
(3) Draw neat diagram wherever is necessary.

1. (a) Explain homogeneous coordinate system. [5 Marks]
(b) Explain in brief Workstation based architecture. [5 Marks]
(c) Describe geometric Modeling in case of V.R. [5 Marks]
(d) Compare Bitmap and vector-based graphics. [5 Marks]

2. (a) State the matrices of 2 D object for scaling and rotation, also draw diagrams. [10 Marks]
(b) Describe the Sutherland-Hodgeman algorithm for polygon clipping. [10 Marks]

3. (a) Describe the following term (ant two):- [20 Marks]
(i) Thresholding
(ii) Dithering
(iii) Antialiasing
(b) Define virtual Reality. Explain the component of VR. [10 Marks]

4. (a) Describe collision detection in VR. [10 Marks]
(b) Describe input and output devices for VR. [10 Marks]

5. (a) Explain B-spline curves. [10 Marks]
(b) Describe scanline algorithm for polygon filing. [10 Marks]

6. (a) Describe Motion Control method. [10 Marks]
(b) Write DDA line drawing algorithm.Compare DDA with Bresenham's line
drawing algorithm. [10 Marks]

7. (a) Write Short Notes on:- [20 Marks]
(a) Parallel Projection
(b) Graphics rendering pipelines.
(c) VR applications
(d) Comparison Between RGB and CMY colour Model.

Also see Computer graphics and virtual reality systems question papers for December 2013

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