Recent questions tagged computer-graphics / GATE Overflow for GATE CSE

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Computer Science - UGC NET 2021 [ Question ID = 2339 ]
Suppose a Bezier curve P(t) is defined by the following four control points in the xy - plane : P0 = (-2,0); P1 = (-2,4); P2 = (2,4); and P3 = (2,0). Then which of the following statements are correct ? Bezier curve P(t) has ... . Choose the correct answer from the options given below : 1 and 2 only. 1 and 3 only. 2 and 3 only. 1, 2, and 3.

Suppose a Bezier curve P(t) is defined by the following four control points in the xy - plane : P0 = (-2,0); P1 = (-2,4); P2 = (2,4); and P3 = (2,0). Then which of the fo...

rajeshposts

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rajeshposts asked Aug 27, 2023

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2

Computer Science - UGC NET 2021 [ Question ID = 2340 ]
Given below are two statements : Statement I: The maximum number of sides that a triangle might have when clipped to a rectangular viewport is 6. Statement II: In 3D graphics, the perspective transformation is nonlinear in z. In light ... are false. Statement I is true but Statement II is false. Statement I is false but Statement II is true.

Given below are two statements : Statement I: The maximum number of sides that a triangle might have when clipped to a rectangular viewport is 6.Statement II: In 3D graph...

rajeshposts

275 views

rajeshposts asked Aug 27, 2023

1 votes

3 answers

3

Computer Science - UGC NET 2021 [ Question ID = 2338 ]
What is the transformation matrix M that transforms a square in the xy plane defined by (1, 1), (-1, 1), (-1, -1), (1, -1) to a parallelogram whose corresponding vertices are (2, 1), (0,1), (-2, -1), and (0, -1) ? 1 1 0 0 1 0 0 0 1 1 0 0 1 1 0 0 0 1 1 1 1 0 1 0 0 0 1 1 1 0 1 1 0 0 0 1

What is the transformation matrix M that transforms a square in the xy plane defined by (1, 1), (-1, 1), (-1, -1), (1, -1) to a parallelogram whose corresponding vertices...

rajeshposts

520 views

rajeshposts asked Jul 30, 2023

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4

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?

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

359 views

admin asked Dec 15, 2022

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1 answer

5

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 ... $(iii)$ only $(ii)$ and $(iii)$ only $(i)$, $(ii)$ and $(iii)$

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 s...

go_editor

1.7k views

go_editor asked Nov 20, 2020

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6

UGC NET CSE | October 2020 | Part 2 | Question: 47
Concerning phong shading and Gouraud shading in a $3\text{D}$ 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 ... $(iii)$ only $(ii)$ and $(iii)$ only $(i), (ii)$ and $(iii)$

Concerning phong shading and Gouraud shading in a $3\text{D}$ scene, which of the following statements are true?Gouraud shading requires more computation than phong shadi...

go_editor

1.1k views

go_editor asked Nov 20, 2020

0 votes

1 answer

7

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: $A-IV, B-II, C-III, D-I$ $A-IV, B-III, C-II, D-I$ $A-III, B-II, C-IV, D-I$ $A-II, B-IV, C-III, D-I$

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 tr...

go_editor

1.2k views

go_editor asked Nov 20, 2020

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1 answer

8

UGC NET CSE | October 2020 | Part 2 | Question: 76
Given below are different properties of $3\text{D}$ projections from $\text{A-D}$. Identify the correct order on the basis of property true of $\text{(i)}$ a perspective projection only, $\text{(ii)}$ an orthographic projection only, $\text{(iii)}$ both ... $\text{ii,iii,iv,i}$ $\text{iv,iii,i,ii}$ $\text{iii,iv,ii,i}$

Given below are different properties of $3\text{D}$ projections from $\text{A-D}$. Identify the correct order on the basis of property true of $\text{(i)}$ a perspective ...

go_editor

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go_editor asked Nov 20, 2020

0 votes

1 answer

9

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

Given below are two statements:Statement $I$: Bezier curves are curves that interpolate all of their control pointsStatement $II$: A cubic bezier curve has four control p...

go_editor

1.4k views

go_editor asked Nov 20, 2020

0 votes

2 answers

10

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 $y=y+1$

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)S...

go_editor

1.2k views

go_editor asked Mar 24, 2020

0 votes

3 answers

11

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 $\text{i and ii}$ $\text{i,ii and iii}$ $\text{i,iii and iv}$ $\text{i,ii,iii and iv}$

Which of the following is/are side effects of scan conversion?AliasingUnequal intensity of diagonal linesOverstriking in photographic applications Local or Global aliasin...

go_editor

2.3k views

go_editor asked Mar 24, 2020

0 votes

3 answers

12

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. $[(0,0),(1,1),(2,1),(3,2)]$ $[(0,0),(1,1.5),(2,2),(3,3)]$ $[(0,0),(1,1),(2,2.5),(3,3)]$ $[(0,0),(1,2),(2,2),(3,2)]$

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)...

go_editor

2.8k views

go_editor asked Mar 24, 2020

0 votes

1 answer

13

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

In the parallel projection, the picture definition of the window to the view port, the parallel projection lines areParallel to the viewportPerpendicular to the viewportP...

gatecse

348 views

gatecse asked Aug 4, 2019

1 votes

3 answers

14

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

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 n...

Pooja Khatri

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Pooja Khatri asked Jul 13, 2018

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3 answers

15

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 ... Culling refers to eliminating geometry with backfacing normals S1 only S2 only Both S1 and S2 Neither S1 nor S2

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...

Pooja Khatri

3.3k views

Pooja Khatri asked Jul 13, 2018

3 votes

3 answers

16

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)

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 coord...

Pooja Khatri

5.5k views

Pooja Khatri asked Jul 13, 2018

2 votes

1 answer

17

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 $x=4,y=4$ $x=3,y=3$ $x=8,y=7.25$ $x=3,y=4$

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}\ ,...

Arjun

5.5k views

Arjun asked Apr 22, 2018

0 votes

0 answers

18

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.

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 progr...

Na462

540 views

Na462 asked Mar 15, 2018

1 votes

1 answer

19

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

The three aspects of Quantization, programmers generally concerned with areCoding error, Sampling rate and AmplificationSampling rate, Coding error and ConditioningSampli...

Arjun

1.2k views

Arjun asked Nov 5, 2017

1 votes

2 answers

20

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

With respect to CRT, the horizontal retrace is defined asThe path an electron beam takes when returning to the left side of the CRTThe path an electron beam takes when re...

Arjun

2.3k views

Arjun asked Nov 5, 2017

1 votes

1 answer

21

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

Which of the following is not true in case of Oblique Projections?Parallel projection rays are not perpendicular to the viewing planeParallel lines in space appear parall...

Arjun

4.0k views

Arjun asked Nov 5, 2017

1 votes

1 answer

22

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

Which of the following is not a component of Memory tube display?Flooding gunCollectorGroundLiquid Crystal

Arjun

1.7k views

Arjun asked Nov 5, 2017

1 votes

0 answers

23

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

The reflection along the line y=x is equivalent to reflection along the X-axis followed by counter clockwise rotation by theta degrees.Find the value of theta

rahuldb

4.2k views

rahuldb asked Nov 30, 2016

–7 votes

0 answers

24

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)

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

rahuldb

5.3k views

rahuldb asked Nov 30, 2016

–6 votes

0 answers

25

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.

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

rahuldb

406 views

rahuldb asked Nov 30, 2016

–3 votes

0 answers

26

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.

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

rahuldb

532 views

rahuldb asked Nov 30, 2016

1 votes

0 answers

27

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.

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 locat...

rahuldb

3.2k views

rahuldb asked Nov 30, 2016

0 votes

1 answer

28

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?

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

2.6k views

rahuldb asked Nov 29, 2016

1 votes

2 answers

29

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 : $(0, \frac{2}{3})$ $\left(\frac{1}{6},\frac{5}{6}\right)$ $(0, \frac{1}{3})$ $(0, 1)$

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 g...

makhdoom ghaya

3.8k views

makhdoom ghaya asked Sep 30, 2016

1 votes

1 answer

30

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

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 _____.Topo...

makhdoom ghaya

2.3k views

makhdoom ghaya asked Sep 30, 2016

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