Exam Details
| Subject | computer graphics and multimedia | |
| Paper | paper 25 | |
| Exam / Course | m.c.a | |
| Department | ||
| Organization | Nalanda Open University | |
| Position | ||
| Exam Date | April, 2017 | |
| City, State | bihar, patna |
Question Paper
N A L A N D A O P E N U N I V E R S I T Y
Master of Computer Application Part-III
PAPER-XXV
(MCS-053 Computer Graphics and Multimedia)
Annual Examination, 2017
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. What is staircase effect Do you agree with the statement "Staircase effect facilitates smooth
line generation" Justify your answer with suitable arguments.
2. Compare and contrast the 2D Euclidean coordinate system with the 2D Homogeneous
coordinate system with the help of an example. Determine the perspective projection of point
on z 0 plane, where the center of projection is at —10).
3. How does frame buffer differ from the display buffer? How does frame buffer overcome the
limitation of display buffer? How does frame spacing influence the simulation of acceleration in
an animation? Justify your answer with suitable illustrations.
4. Differentiate between window and viewport region? Explain how window to viewport mapping
is performed. What is Aliasing? Explain how Antialiasing overcomes the problem of Aliasing.
5. Write the pseudocode for Bresenham circle generation algorithm, and use it to produce an arc
of radius r 4 units, in the first quadrant from x 0 to x y.
6. Differentiate between the following
Scan line polygon fill algorithm and flood fill algorithm.
Parallel projection and Perspective projection.
7. Determine the final coordinates of the perspective projection of an object, when the object is
first rotated w.r.t. y-axis by 30° in clockwise direction and then w.r.t. x-axis by 45° in
clockwise direction and finally it is projected on to z 0 plane with the centre of projection at
— 5).
8. Explain the following
Cel Animation
Frame Animation
Sprite Animation
9. Write short notes on the following
Compression in digital video
Authoring tools
Morphing
10. Write the pseudocode for Z-buffer algorithm for visible surface detection. What is the
maximum number of objects that can be handled by Z-buffer algorithm? Give two advantages
and two disadvantages of Z-buffer algorithm.
Master of Computer Application Part-III
PAPER-XXV
(MCS-053 Computer Graphics and Multimedia)
Annual Examination, 2017
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. What is staircase effect Do you agree with the statement "Staircase effect facilitates smooth
line generation" Justify your answer with suitable arguments.
2. Compare and contrast the 2D Euclidean coordinate system with the 2D Homogeneous
coordinate system with the help of an example. Determine the perspective projection of point
on z 0 plane, where the center of projection is at —10).
3. How does frame buffer differ from the display buffer? How does frame buffer overcome the
limitation of display buffer? How does frame spacing influence the simulation of acceleration in
an animation? Justify your answer with suitable illustrations.
4. Differentiate between window and viewport region? Explain how window to viewport mapping
is performed. What is Aliasing? Explain how Antialiasing overcomes the problem of Aliasing.
5. Write the pseudocode for Bresenham circle generation algorithm, and use it to produce an arc
of radius r 4 units, in the first quadrant from x 0 to x y.
6. Differentiate between the following
Scan line polygon fill algorithm and flood fill algorithm.
Parallel projection and Perspective projection.
7. Determine the final coordinates of the perspective projection of an object, when the object is
first rotated w.r.t. y-axis by 30° in clockwise direction and then w.r.t. x-axis by 45° in
clockwise direction and finally it is projected on to z 0 plane with the centre of projection at
— 5).
8. Explain the following
Cel Animation
Frame Animation
Sprite Animation
9. Write short notes on the following
Compression in digital video
Authoring tools
Morphing
10. Write the pseudocode for Z-buffer algorithm for visible surface detection. What is the
maximum number of objects that can be handled by Z-buffer algorithm? Give two advantages
and two disadvantages of Z-buffer algorithm.
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