(Following Paper ID and Roll No. to be filled in Jour Answer Book)
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PAPeR 10;' ;1013, '-: _
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B.Tech (SEM V) ODD SEMESTER THEORY EXAMINATION 2009-10 COMPUTER GRAPHICS - .
Answer any four questions :
SX4=20
(a)
Write a general function for Rasterizatiol1.
(b)
Explain the role of pixel and frame buffer in graphics devices.
(c)
How much time is spent scanning across each row of pixels during screen refresh on a raster system with resolution of 1280 x 1024 and a refresh rate of 60 frames per second ?
(d)
Consider two raster systems with resolutions of. 640 x 480 and 1280 x 1024. How many pixels could be accessed per second in each of these systems by a display controller that refreshes the screen at a rate of 60 frames per second ?
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(e)
Explain how to display file structure and control ; test.
(f)
Compare the computation done in Digital Differential Analyzer (DDA) algorithm with Bresenham's line drawing algorithm.
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1 4.
any four questions
Answer (a)
What is a segment
:
Sx4 20
and segment
table
(c)
What is echoing and its use ? Write different interactive techniques in computer graphics.
(a)
Make a comparison of Bezier, Hermite B-spline algorithms for curve generation.
and
(b)
List the advantages and disadvantages Back-face dete~ti~ Dept-Buffer method A Buffer method.
of and
Writ'
the utility of segment. (b)
Write a procedure
for creating,
deleting
and
renaming segments. (c)
Explain visibility in detail.
(d)
Write
a boundary
8-connected (e)
Explain
to
fill an
region.
scan fill algorithm
suitable (f)
fill procedure
(c)
with the help of ~
example.
Explain
'Explain in detail different illumination and different Randering methods.
/'
different
procedures
for
image
transformation. 3
Attempt any two questions: (a)
Write a procedure for rotation and translation transformation. Derive reflection metrics for reflection
(b)
10x2=20
Write
about the X axis.
and
clipping,
compare
Cohen-Sutherland
Liang-Barsky
Nicholl-Lee- Nicholl (c)
line
clipping
and
clipping.
What is window-to-view point coordinate t I an~lormation ? What are issues related to multiple
wind owing
?
Attempt any two questions: (a)
line
line
,/ " :-
10x2=20
I~xplaill parallel projection, perspective projection And d pI h curing projection for 3-D display
terms Pixel, Aspect Ratio, Resolution. O) Develop and write mid point circle algorithm. Apply it to. predict the pixels in any octant for the circle whose centre.
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(a) Find the blending functions of Bezier curve for five control. points. Plot the blending functions. (b) Cubic spline curve is definedby the equation. P(u): Cru3 + ...
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I Attempt any four questions: [5x4:20) (a) Describe the differences between symmetric and. asymmetric multiprocessing. (b) Discuss various operating system ...