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Recent questions tagged computer-graphics

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DRDO CSE 2022 Paper 2 | Question: 30
Given an input image of size $230 \times 230$ with convolution filter of size $5 \times 5$ and stride $3$. What would be the size of the output?

admin asked in Computer Graphics Dec 15, 2022

by admin

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UGC NET CSE | October 2020 | Part 2 | Question: 46
In the context of $3D$ Computer graphics, which of the following statements is/are correct? Under perspective projection, each set of parallel lines in the object do not stay parallel in the image (except those that are parallel to the viewplane to start with). Applying a ... $(c)$ only $(b)$ and $(c)$ only $(a)$, $(b)$ and $(c)$

go_editor asked in Computer Graphics Nov 20, 2020

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UGC NET CSE | October 2020 | Part 2 | Question: 47
Concerning phong shading and Gouraud shading in a $3D$ scene, which of the following statements are true? Gouraud shading requires more computation than phong shading Gouraud shading linearly interpolates the color of an interior pixel from the color at the vertices Phong shading ... and $(c)$ only $(b)$ and $(c)$ only $(a), (b)$ and $(c)$

go_editor asked in Computer Graphics Nov 20, 2020

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UGC NET CSE | October 2020 | Part 2 | Question: 66
Match $\text{List I}$ with $\text{List II}$. $\text{List I}$ gives $3 \times 3$ matrices representing $2D$ transformations and $\text{List II}$ shows the corresponding transformation diagrams. Choose the correct answer from the options given below: $A-IV, B-II, C-III, D-I$ $A-IV, B-III, C-II, D-I$ $A-III, B-II, C-IV, D-I$ $A-II, B-IV, C-III, D-I$

go_editor asked in Computer Graphics Nov 20, 2020

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UGC NET CSE | October 2020 | Part 2 | Question: 76
Given below are different properties of $3D$ projections from $A-D$. Identify the correct order on the basis of property true of $(i)$ a perspective projection only, $(ii)$ an orthographic projection only, $(iii)$ both orthographic and projective transformations ... the correct answer from the options given below: d,c,b,a b,c,d,a d,c,a,b c,d,b,a

go_editor asked in Computer Graphics Nov 20, 2020

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UGC NET CSE | October 2020 | Part 2 | Question: 82
Given below are two statements: Statement $I$: Bezier curves are curves that interpolate all of their control points Statement $II$: A cubic bezier curve has four control points In the light of the above statements, choose the correct answer ... $I$ is correct but Statement $II$ is false Statement $I$ is incorrect but Statement $II$ is true

go_editor asked in Computer Graphics Nov 20, 2020

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2 answers

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UGC NET CSE | January 2017 | Part 3 | Question: 16
Below are the few steps given for scan-converting a circle using Bresenham’s Algorithm. Which of the given steps is not correct? Compute $d= 3-2r$ (where $r$ is radius) Stop if $x>y$ If $d< 0$, then $d=4x+6$ and $x=x+1$ If $d\geq 0$, then $d=4 \ast(x-y)+10, \: x=x+1$ and $y=y+1$

go_editor asked in Computer Graphics Mar 24, 2020

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UGC NET CSE | January 2017 | Part 3 | Question: 17
Which of the following is/are side effects of scan conversion? Aliasing Unequal intensity of diagonal lines Overstriking in photographic applications Local or Global aliasing a and b a,b and c a,c and d a,b,c and d

go_editor asked in Computer Graphics Mar 24, 2020

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UGC NET CSE | January 2017 | Part 3 | Question: 18
Consider a line $AB$ with $A=(0,0)$ and $B=(8,4)$. Apply a simple $DDA$ algorithm and compute the first four plots on this line. $[(0,0),(1,1),(2,1),(3,2)]$ $[(0,0),(1,1.5),(2,2),(3,3)]$ $[(0,0),(1,1),(2,2.5),(3,3)]$ $[(0,0),(1,2),(2,2),(3,2)]$

go_editor asked in Computer Graphics Mar 24, 2020

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KPGCET-CSE-2019-19
In the parallel projection, the picture definition of the window to the view port, the parallel projection lines are Parallel to the viewport Perpendicular to the viewport Parallel to the window Perpendicular to the window

gatecse asked in Computer Graphics Aug 4, 2019

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3 answers

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UGC NET CSE | July 2018 | Part 2 | Question: 8
A graphic display system has a frame buffer that is 640 pixels high , 480 pixels high and 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

Pooja Khatri asked in Computer Graphics Jul 13, 2018

by Pooja Khatri

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4 answers

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UGC NET CSE | July 2018 | Part 2 | Question: 9
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 ... Backface Culling refers to eliminating geometry with backfacing normals S1 only S2 only Both S1 and S2 Neither S1 nor S2

Pooja Khatri asked in Computer Graphics Jul 13, 2018

by Pooja Khatri

2.8k views

3 votes

3 answers

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UGC NET CSE | July 2018 | Part 2 | Question: 10
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 ... of parameters (-1,1) M represents first, a shearing of parameters (-1, 1) followed by scaling of vector (3,1)

Pooja Khatri asked in Computer Graphics Jul 13, 2018

by Pooja Khatri

4.9k views

2 votes

1 answer

14

ISRO2018-39
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 $x=4,y=4$ $x=3,y=3$ $x=8,y=7.25$ $x=3,y=4$

Arjun asked in Computer Graphics Apr 22, 2018

by Arjun

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15

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.

Na462 asked in Computer Graphics Mar 15, 2018

by Na462

389 views

1 vote

1 answer

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UGC NET CSE | November 2017 | Part 3 | Question: 18
The three aspects of Quantization, programmers generally concerned with are Coding error, Sampling rate and Amplification Sampling rate, Coding error and Conditioning Sampling rate, Aperture time and Coding error Aperture time, Coding error and Strobing

Arjun asked in Computer Graphics Nov 5, 2017

by Arjun

922 views

1 vote

2 answers

17

UGC NET CSE | November 2017 | Part 3 | Question: 15
With respect to CRT, the horizontal retrace is defined as The path an electron beam takes when returning to the left side of the CRT The path an electron beam takes when returning to the right side of the CRT The technique of turning, the electron beam off while retracing The technique of turning, the electron beam on/ off while retracing

Arjun asked in Computer Graphics Nov 5, 2017

by Arjun

1.7k views

1 vote

1 answer

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UGC NET CSE | November 2017 | Part 3 | Question: 14
Which of the following is not true in case of Oblique Projections? Parallel projection rays are not perpendicular to the viewing plane Parallel lines in space appear parallel on the final projected image Used exclusively for pictorial purposes rather than formal working drawings Projectors are always perpendicular to the plane of projection

Arjun asked in Computer Graphics Nov 5, 2017

by Arjun

3.7k views

1 vote

1 answer

19

UGC NET CSE | November 2017 | Part 3 | Question: 13
Which of the following is not a component of Memory tube display? Flooding gun Collector Ground Liquid Crystal

Arjun asked in Computer Graphics Nov 5, 2017

by Arjun

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The reflection along the line y=x is equivalent to reflection along the X-axis followed by counter clockwise rotation

rahuldb asked in Computer Graphics Nov 30, 2016

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–7 votes

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Show that the composition of two rotations is additive by concatenating the matrix
Show that the composition of two rotations is additive by concatenating the matrix representations for R(theta 1) and R(theta 2) to obtain R(theta 1) x R(theta 2) = R(theta 1 + theta 2)

rahuldb asked in Computer Graphics Nov 30, 2016

4.3k views

–6 votes

0 answers

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Scan convert an Eclipse with given Eclipse parameters : Rx = 6 and Ry = 4
Scan convert an Eclipse with given Eclipse parameters : Rx = 6 and Ry = 4 Please show the working.

rahuldb asked in Computer Graphics Nov 30, 2016

267 views

–3 votes

0 answers

23

Scan convert a circle with radius 9.5 and centerd at origin using Mid Point Circle Algorithm
Scan convert a circle with radius 9.5 and centerd at origin using Mid Point Circle Algorithm Please show working.

rahuldb asked in Computer Graphics Nov 30, 2016

327 views

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0 answers

24

A polygon has 4 vertices located a A(25, 10),B(50, 10),C(60, 30),D(20 ,30)....
A polygon has 4 vertices located a A(25, 10),B(50, 10),C(60, 30),D(20 ,30).Specify the transformation matrix required to double the size of the polygon with point A located at the same position.

rahuldb asked in Computer Graphics Nov 30, 2016

2.4k views

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1 answer

25

How long it would take to load a 512 x 480 frame buffer with 12 bits per pixel....
How long it would take to load a 512 x 480 frame buffer with 12 bits per pixel,if 1000 bits can be transferred per second?

rahuldb asked in Computer Graphics Nov 29, 2016

2.1k views

1 vote

2 answers

26

UGC NET CSE | August 2016 | Part 3 | Question: 18
The Liang-Barsky 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 : $x = x_{1} + \Delta x.u$ $y = y_{1} + \Delta y.u$ ... as : $(0, \frac{2}{3})$ $\left(\frac{1}{6},\frac{5}{6}\right)$ $(0, \frac{1}{3})$ $(0, 1)$

makhdoom ghaya asked in Computer Graphics Oct 1, 2016

by makhdoom ghaya

3.0k views

1 vote

1 answer

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UGC NET CSE | August 2016 | Part 3 | Question: 17
In perspective projection (from 3D to 2D), objects behind the centre of projection are projected upside down and backward onto the view-plane. This is known as _____. Topological distortion Vanishing point View confusion Perspective foreshortening

makhdoom ghaya asked in Computer Graphics Oct 1, 2016

by makhdoom ghaya

1.7k views

5 votes

1 answer

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UGC NET CSE | August 2016 | Part 3 | Question: 16
A point $P(2, 5)$ is rotated about a pivot point $(1, 2)$ by 60°. What is the new transformed point $P'$ ? $(1, 4)$ $(–1, 4)$ $(1, – 4)$ $(– 4, 1)$

makhdoom ghaya asked in Computer Graphics Oct 1, 2016

by makhdoom ghaya

6.9k views

1 vote

1 answer

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UGC NET CSE | August 2016 | Part 3 | Question: 15
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, $d_{i+1}$ ... $x_{ i+1} = x_{ i + 1} y_{i+1} = y_{i + 1} d_{i+1} = d_{i} + 2 (dy - dx)$

makhdoom ghaya asked in Computer Graphics Oct 1, 2016

by makhdoom ghaya

2.7k views

3 votes

0 answers

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UGC NET CSE | August 2016 | Part 3 | Question: 14
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 ? $2^{N}$ $2^{W}$ $2^{N+W}$ $2^{N-1}$

makhdoom ghaya asked in Computer Graphics Sep 30, 2016

by makhdoom ghaya

1.8k views

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Recent questions tagged computer-graphics