Roll No. ..........................
Total Pages : 03
MCA/M-24 24528
COMPUTER GRAPHICS AND ANIMATION
MCA-20-42
Time : Three Hours] [Maximum Marks : 75
Note : Attempt Five questions in all, selecting one question
from each Unit. Q. No. 1 is compulsory. All questions
carry equal marks.
1. Attempt any five of the following :
(a) Define Clipping and Clip window.
(b) How is a parametric curve defined and represented
mathematically ?
(c) Differentiate between Raster and Vector Graphics.
(d) Write a note on Zooming.
(e) Write various area filling techniques
(f) List any four areas of applications of computer
graphics.
Unit I
2. What are the distinguishing characteristics between Raster
scan and Random scan display devices in computer
graphics ? Explore the feasibility of using frame buffers
to control picture color and intensity, supporting your
response with appropriate arguments.
(8-16/1) L-24528 P.T.O.
3. What is the concept of Color CRTs ? How does the 7. Explain the following :
focusing of colors occur within colored CRTs ? (a) Sutherland-Hodgeman Polygon Clipping Algorithm
Furthermore, why is refreshing necessary in CRT (b) Weiler-Atherton Polygon Clipping.
technology ? Provide a comprehensive explanation.
Unit IV
Unit II
8. What is the Z-buffer algorithm used for solving the hidden
4. Write Bresenham's line generation algorithm. Compare surfaces problem in computer graphics ? When two
the Bresenham line generation algorithm with the DDA polygons possess identical z values and the Z-buffer
algorithm. How Bresenham line generation algorithm algorithm is implemented, what outcome can be observed ?
overcomes the limitations of DDA algorithm ? Use
9. How does the BSP-Tree Method contribute to visual
Bresenham line generation algorithm to draw a line
surface determination through area subdivision ? Discuss
segment from (15, 5) to (20, 9).
subdivision algorithm in detail and how its exploit are
5. Explain the following with suitable example : coherence.
(a) Flood Fill Algorithm
(b) Boundary fill Algorithm.
Unit III
6. How are two-dimensional transformations represented
using matrices ? Discuss the matrix representations for
translation, rotation, scaling, shearing, and reflections.
Explain how these matrices are applied to transform the
coordinates of objects in computer graphics.
L-24528 2 (8-16/2) L-24528 3 400
