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Recent questions tagged computergraphics
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UGCNETJuly2018II8
A graphic display system has a frame buffer that is 640 pixels high ans 1 bit of color depth. If the access time for each pixel on the average is 200 nanoseconds, then the refresh rate of this frame buffer is approximately: 16 frames per second 19 frames per second 21 frames per second 23 frames per second
asked
Jul 13, 2018
in
Computer Graphics
by
Pooja Khatri
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10.8k
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2.4k
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ugcnetjuly2018ii
computergraphics
displaysystem
0
votes
1
answer
2
UGCNETJuly2018II9
Which of the following statements is/are True regarding the solution of the visibility problem in 3D graphics? S1: The painter's algorithm sorts polygons by depth and then paints (scan  converts) each Polygon on to the screen starting with the most ... S2: Backface Culling refers to eliminating geometry with backfacing normals S1 only S2 only Both S1 and S2 Neither S1 nor S2
asked
Jul 13, 2018
in
Computer Graphics
by
Pooja Khatri
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10.8k
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726
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ugcnetjuly2018ii
computergraphics
3dgraphics
+2
votes
2
answers
3
UGCNETJuly2018II10
Consider the matrix $M=\begin{bmatrix} 2 & 0 & 2 \\ 0 & 1 & 1 \\ 0 & 0 & 1 \end{bmatrix}$ representing a set of planar (2D) geometric transformations in homogeneous coordinates. Which of the following statements about the matrix ... shearing of parameters (1,1) M represents first, a shearing of parameters (1, 1) followed by scaling of vector (3,1)
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Jul 13, 2018
in
Computer Graphics
by
Pooja Khatri
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10.8k
points)

1.5k
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ugcnetjuly2018ii
computergraphics
2dgeometry
0
votes
2
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4
UGC NET July 2018 Q 9
Which of the following statements is/are True regarding the solution to the visibility problem in $3D$ graphics ? $S1 :$ The Painter's algorithm sorts polygons by depth and then paints (scan  converts) each Polygon on to the screen starting with ... Backface Culling refers to eliminating geometry with backfacing normals. S1 only S2 only Both S1 and S2 Neither S1 nor S2
asked
Jul 11, 2018
in
Computer Graphics
by
Sanjay Sharma
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48.8k
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197
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computergraphics
+1
vote
1
answer
5
ISRO201839
Perform window to viewport transformation for the point (20,15). Assume that $(X_{wmin}\ ,Y_{wmin} )$ is $(0,0)$ ; $(X_{wmax}\ ,Y_{wmax} )$ is $(100,100)$ ; $(X_{vmin}\ ,Y_{vmin} )$ is $(5,5)$ ; $(X_{vmax}\ ,Y_{vmax} )$ is $(20,20)$ . The value of $x$ and $y$ in the viewport is $x=4,y=4$ $x=3,y=3$ $x=8,y=7.25$ $x=3,y=4$
asked
Apr 22, 2018
in
Others
by
Arjun
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569
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isro2018
nongate
normal
computergraphics
0
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0
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6
Graphics
I have a confusion that how the Gpu internal memory different from primary memory in the sense when which of the memory is active. For example suppose i am doing GPU programming or playing a video game then primary memory plays a role or only GPU memory. Suppose I increased my RAM without touching GPU will there be any improvement in my Gpu programming or my video games.
asked
Mar 15, 2018
in
Computer Graphics
by
Na462
Loyal
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6.9k
points)

121
views
computergraphics
+1
vote
1
answer
7
UGCNETNov2017iii18
The three aspects of Quantization, programmers generally concerned with are: A. Coding error, Sampling rate and Amplification B. Sampling rate, Coding error and Conditioning C. Sampling rate, Aperture time and Coding error D. Aperture time, Coding error and Strobing
asked
Nov 5, 2017
in
Computer Graphics
by
Arjun
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424k
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315
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ugcnetnov2017iii
computergraphics
digitalimageprocessing
+1
vote
2
answers
8
UGCNETNov2017iii15
With respect to CRT, the horizontal retrace is defined as: A. The path an electron beam takes when returning to the left side of the CRT. B. The path an electron beam takes when returning to the right side of the CRT. C. The technique of turning, the electron beam off while retracing. D. The technique of turning, the electron beam on/ off while retracing.
asked
Nov 5, 2017
in
Computer Graphics
by
Arjun
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424k
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410
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ugcnetnov2017iii
computergraphics
crt
+1
vote
1
answer
9
UGCNETNov2017iii14
Which of the following is not true in case of Oblique Projections? A. Parallel projection rays are not perpendicular to the viewing plane. B. Parallel lines in space appear parallel on the final projected image. C. Used exclusively for pictorial purposes rather than formal working drawings. D. Projectors are always perpendicular to the plane of projection.
asked
Nov 5, 2017
in
Computer Graphics
by
Arjun
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(
424k
points)

343
views
ugcnetnov2017iii
computergraphics
projection
+1
vote
1
answer
10
UGCNETNov2017iii13
Which of the following is not a component of Memory tube display? A. Flooding gun B. Collector C. Ground D. Liquid Crystal
asked
Nov 5, 2017
in
Computer Graphics
by
Arjun
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424k
points)

469
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ugcnetnov2017iii
computergraphics
+1
vote
2
answers
11
UGCNETAUG2016III18
The LiangBarsky line clipping algorithm uses the parametric equation of a line from $(x_{1} , y_{1} )$ to $(x_{2} , y_{2} )$ along with its infinite extension which is given as : $x = x_{1} + \Delta x.u$ $y = y_{1} + \Delta y.u$ ... is given as : $(0, \frac{2}{3})$ $\left(\frac{1}{6},\frac{5}{6}\right)$ $(0, \frac{1}{3})$ $(0, 1)$
asked
Oct 1, 2016
in
Computer Graphics
by
makhdoom ghaya
Boss
(
30.1k
points)

878
views
ugcnetaug2016iii
computergraphics
linedrawingalgorithm
+1
vote
1
answer
12
UGCNETAUG2016III17
In perspective projection (from 3D to 2D), objects behind the centre of projection are projected upside down and backward onto the viewplane. This is known as _____. Topological distortion Vanishing point View confusion Perspective foreshortening
asked
Oct 1, 2016
in
Computer Graphics
by
makhdoom ghaya
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(
30.1k
points)

619
views
ugcnetaug2016iii
computergraphics
projection
+6
votes
1
answer
13
UGCNETAUG2016III16
A point $P(2, 5)$ is rotated about a pivot point $(1, 2)$ by 60°. What is the new transformed point $P'$ ? $(1, 4)$ $(–1, 4)$ $(1, – 4)$ $(– 4, 1)$
asked
Oct 1, 2016
in
Computer Graphics
by
makhdoom ghaya
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30.1k
points)

1.9k
views
ugcnetaug2016iii
computergraphics
projection
+1
vote
1
answer
14
UGCNETAUG2016III15
Consider the Breshenham's line generation algorithm for a line with gradient greater than one, current point $(x_{ i} , y_{i} )$ and decision parameter, $d_{i}$. The next point to be plotted $(x _{i+1}, y_{i+1})$ and updated decision parameter, $d_{i+1}$, for $d_{i} < 0$ are given as _______ ... $x_{ i+1} = x_{ i + 1} y_{i+1} = y_{i + 1} d_{i+1} = d_{i} + 2 (dy  dx)$
asked
Oct 1, 2016
in
Computer Graphics
by
makhdoom ghaya
Boss
(
30.1k
points)

338
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ugcnetaug2016iii
computergraphics
linedrawingalgorithm
+3
votes
1
answer
15
UGCNETAUG2016III14
Consider a $N$bit plane frame buffer with $W$bit wide lookup table with $W > N$. How many intensity levels are available at a time ? $2^{N}$ $2^{W}$ $2^{N+W}$ $2^{N1}$
asked
Sep 30, 2016
in
Computer Graphics
by
makhdoom ghaya
Boss
(
30.1k
points)

689
views
ugcnetaug2016iii
computergraphics
framebuffer
+1
vote
1
answer
16
UGCNETAUG2016III13
Consider a raster grid having $XY$axes in positive $X$direction and positive upward $Y$direction with $X_{max} = 10$, $X_{min} = –5$, $Y_{max} = 11$, and $Y_{min} = 6$. What is the address of memory pixel with location $(5, 4)$ in raster grid assuming base address $1$ (one) ? $150$ $151$ $160$ $161$
asked
Sep 30, 2016
in
Computer Graphics
by
makhdoom ghaya
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(
30.1k
points)

2.3k
views
ugcnetaug2016iii
computergraphics
rastergraphics
+2
votes
1
answer
17
UGCNETJune2016III60
Which of the following is used for the boundary representation of an image object? Quad Tree Projections Run length coding Chain codes
asked
Aug 21, 2016
in
Digital Image Processing
by
jothee
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105k
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1.1k
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ugcnetjune2016iii
imagecompression
computergraphics
+2
votes
1
answer
18
UGCNETJune2016III18
Which of the following statements is/are correct with reference to curve generation? Hermite curves are generated using the concepts of interpolation Bezier curves are generated using the concepts of approximation The Bezier curve lies entirely within the convex hull of its control ... of control points I, II and IV only II and III only I and II only I, II and III only
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Aug 20, 2016
in
Computer Graphics
by
jothee
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(
105k
points)

839
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ugcnetjune2016iii
computergraphics
+1
vote
3
answers
19
UGCNETJune2016III17
Let us consider that the original point is (x,y) and new transformed point is (x’,y’). Further Sh$_x$ and Sh$_y$ are shearing factors in x and y directions. If we perform the y direction shear relative to x=s$_{ref}$ then the transformed point is given by $x’=x+Sh_x.(yy_{ref}); y’=y$ $x’=x; y’=y.Sh_x$ $x’=x; y’=Sh_y(xx_{ref})+y$ $x’=Sh_y.y; y’=y.(xx_{ref})$
asked
Aug 20, 2016
in
Computer Graphics
by
jothee
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(
105k
points)

949
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ugcnetjune2016iii
computergraphics
+2
votes
1
answer
20
UGCNETJune2016III15
Let R be the rectangular window against which the lines are to be clipped using 2D SutherlandCohen line clipping algorithm. The rectangular window has lower rectangular corner at (5, 1) and upper righthand corner at (3, 7). Consider the following three lines for clipping ... E(2,3) and F(1,2) Which of the following lines is/are candidate for clipping? AB DC EF AB and CD
asked
Aug 18, 2016
in
Computer Graphics
by
jothee
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105k
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2k
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ugcnetjune2016iii
computergraphics
+5
votes
1
answer
21
UGCNETJune2016III13
Consider the Breshenman's circle generation algorithm for plotting a circle with centre (0,0) and radius 'r' unit in first quadrant. If the current point is $(x_i, y_i)$ and decision parameter is $p_i$ then what will be the next point $(x_{i+1}, y_{i+1})$ ... $x_{i+1}=x_i1; y_{i+1}=y_i; p_{i+1}=p_i+4x_i+10$
asked
Aug 18, 2016
in
Computer Graphics
by
jothee
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105k
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1.4k
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ugcnetjune2016ii
computergraphics
bresenhamalgo
+3
votes
4
answers
22
UGCNETJune2016III14
A point P(5,1) is rotated by 90$^o$ about a pivot point (2,2). What is the coordinate of new transformed point P'? (3,5) (5,3) (2,4) (1,5)
asked
Aug 13, 2016
in
Computer Graphics
by
Meenakshi Sharma
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(
2.3k
points)

3.5k
views
ugcnetjune2016iii
computergraphics
rotation
+3
votes
3
answers
23
UGCNETJune2016III16
In perspective projection, if a line segment joining a point which lies in front of the viewer to a point in back of the viewer is projected to a broken line of infinte extent. This is known as ____ View confusion Vanishing point Topological distortion Perspective foreshortening
asked
Aug 13, 2016
in
Computer Graphics
by
Meenakshi Sharma
Active
(
2.3k
points)

1.3k
views
ugcnetjune2016iii
computergraphics
projection
+3
votes
1
answer
24
UGCNETDec2015III7
Consider a unit square centered at origin. The coordinates at the square are translated by a factor $\biggr( \frac{1}{2}, 1 \biggl)$ and rotated by an angle of 90$^o$ ...
asked
Aug 11, 2016
in
Computer Graphics
by
jothee
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(
105k
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2.8k
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ugcnetdec2015iii
computergraphics
+3
votes
1
answer
25
UGCNETDec2015III69
Which raster locations would be chosen by Bresenham's algorithm when scan converting a line from (1,1) to (8,5)? x y 1 2 3 4 5 6 7 8 1 2 3 3 4 4 5 6 x y 1 2 3 4 5 6 7 8 1 2 2 3 4 5 6 7 x y 1 2 3 4 5 6 7 8 1 2 2 3 3 4 4 5 x y 1 2 3 4 5 6 7 8 1 2 2 3 5 4 5 5
asked
Aug 11, 2016
in
Computer Graphics
by
jothee
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(
105k
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1.9k
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ugcnetdec2015iii
computergraphics
+2
votes
1
answer
26
UGCNETDec2015III67
Which of the following is/are the principle components of a memorytube display? Flooding gun Collector Phosphorus grains Ground a and b c only d only All of the above
asked
Aug 11, 2016
in
Computer Graphics
by
jothee
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(
105k
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1.8k
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ugcnetdec2015iii
computergraphics
+1
vote
1
answer
27
UGCNETDec2015III71
Which of the following is/are the components of a CRT ? Electron Gun Control Electrode Focusing Electrode Phosphor Coated Screen a and d a, b and d a, b, c and d a, c and d
asked
Aug 2, 2016
in
Computer Graphics
by
Sankaranarayanan P.N
Boss
(
11k
points)

696
views
ugcnetdec2015iii
computergraphics
crt
+2
votes
1
answer
28
UGCNETJune2015III18
Match the following: ListI ListII a. Flood Gun i. an electron gun designed to flood the entire screen with electrons b. Collector ii. Partly energized by flooding gun, stores the charge generated by the writing gun c. Ground iii. used to discharge the collector d. Phosphorous grains iv. Used in memory  ... , div, ev aiii, bi, cii, dv, eiv aiv, bv, ci, dii, eiii
asked
Jul 31, 2016
in
Computer Graphics
by
jothee
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105k
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670
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ugcnetjune2015iii
computergraphics
+2
votes
1
answer
29
UGCNETJune2015III17
Which of the following statements is/are incorrect? Mapping the coordinates of the points and lines that form the picture into the appropriate coordinates on the device or workstation is known as viewing transformation The righthanded cartesian coordinates system ... of the coordinate system, is known as normalized device coordinate system a only a and b c only d only
asked
Jul 31, 2016
in
Computer Graphics
by
jothee
Veteran
(
105k
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603
views
ugcnetjune2015iii
computergraphics
+2
votes
1
answer
30
UGCNETJune2015III16
Which of the following is not a basic primitive of the Graphics Kernel System (GKS)? POLYLINE POLYDRAW FILL AREA POLYMARKER
asked
Jul 31, 2016
in
Computer Graphics
by
jothee
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105k
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754
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ugcnetjune2015iii
computergraphics
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