Categories: Fourth Year First Semester (4-1)

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) What are the advantages and disadvantages of LCD over faster-scan CRT? [4M]

b) Compare homogeneous coordinated with screen coordinates. [3M]

c) What is the use of View Reference point? [4M]

d) Define Blending Functions. [4M]

e) Define classification. [3M]

f) How animation is used in multimedia? [4M]

PART -B

2 Describe the working methodology of various input devices used for developing

graphics applications.

[16M]

3 a) Describe the midpoint circle generation algorithm. State its advantages and

disadvantages over DDA circle generation algorithm.

[8M]

b) A point (3,5) is rotated anticlockwise by an angle of 45

0

. Find the rotation matrix

and resultant point.

[8M]

4 a) Explain Cyrus-beck line clipping algorithm. [8M]

b) What is the difference between window and viewport? How window-to-viewport

transformation is done?

[8M]

5 a) Explain the Properties of B – spline. How it is differ from Bezier? [8M]

b) How does the depth of a polygon determined by the painter algorithm?

[8M]

6 A solid tetrahedron is given by position vectors A(1,1,1), B(3,1,1), C(2,1,3) and

D(2,2,2) with a point light source is kept at P(2,3,4). Using back face detection

method, find the surfaces on which the light falls and the surfaces which are to be

shaded.

[16M]

7 a) Discuss the important principles behind Computer Animation with suitable diagrams [8M]

b) What is animation? And give its application areas? [8M]

*****

R13

SET – 1

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) What are the advantages and disadvantages of LCD over faster-scan CRT? [4M]

b) Compare homogeneous coordinated with screen coordinates. [3M]

c) What is the use of View Reference point? [4M]

d) Define Blending Functions. [4M]

e) Define classification. [3M]

f) How animation is used in multimedia? [4M]

PART -B

2 Describe the working methodology of various input devices used for developing

graphics applications.

[16M]

3 a) Describe the midpoint circle generation algorithm. State its advantages and

disadvantages over DDA circle generation algorithm.

[8M]

b) A point (3,5) is rotated anticlockwise by an angle of 45

0

. Find the rotation matrix

and resultant point.

[8M]

4 a) Explain Cyrus-beck line clipping algorithm. [8M]

b) What is the difference between window and viewport? How window-to-viewport

transformation is done?

[8M]

5 a) Explain the Properties of B – spline. How it is differ from Bezier? [8M]

b) How does the depth of a polygon determined by the painter algorithm?

[8M]

6 A solid tetrahedron is given by position vectors A(1,1,1), B(3,1,1), C(2,1,3) and

D(2,2,2) with a point light source is kept at P(2,3,4). Using back face detection

method, find the surfaces on which the light falls and the surfaces which are to be

shaded.

[16M]

7 a) Discuss the important principles behind Computer Animation with suitable diagrams [8M]

b) What is animation? And give its application areas? [8M]

*****

R13

SET – 1

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) Give the functioning of Display processor. [4M]

b) What are filled area primitives? [3M]

c) How to Map a window to view port? [4M]

d) Explain about diffuse illumination. [4M]

e) What are composite transformations? [3M]

f) Define frame by frame animation. [4M]

PART -B

2 Explain the principle of following video display devices: (i) Cathode Ray Tube. (ii) Liquid Crystal Displays

[16M]

3 Digitize a line from (1, 2) to (12, 18) on a raster screen using Bresenham’s straight line

algorithm. Compare it with line generated using a DDA algorithm

[16M]

4 Explain Sutherland Hodgeman polygon clipping algorithm. List and Explain its

disadvantages and how to rectify them.

[16M]

5 a) Explain how to generate a Bezier Curve using the blending functions. [8M]

b) Give an overview of basic illumination methods.

[8M]

6 Derive the matrix form for the geometric transformations in 3D graphics from the

following operations: i) Translation ii) Scaling iii) Mirror reflection

[16M]

7 a) Design a Storyboard layout and accompanying key frame for an animation of a single

polyhedron.

[8M]

b) Describe various methods of controlling animation. [8M]

*****

R13

SET – 2

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) What are the advantages and disadvantages of LCD over faster-scan CRT? [4M]

b) Compare homogeneous coordinated with screen coordinates. [3M]

c) What is the use of View Reference point? [4M]

d) Define Blending Functions. [4M]

e) Define classification. [3M]

f) How animation is used in multimedia? [4M]

PART -B

2 Describe the working methodology of various input devices used for developing

graphics applications.

[16M]

3 a) Describe the midpoint circle generation algorithm. State its advantages and

disadvantages over DDA circle generation algorithm.

[8M]

b) A point (3,5) is rotated anticlockwise by an angle of 45

0

. Find the rotation matrix

and resultant point.

[8M]

4 a) Explain Cyrus-beck line clipping algorithm. [8M]

b) What is the difference between window and viewport? How window-to-viewport

transformation is done?

[8M]

5 a) Explain the Properties of B – spline. How it is differ from Bezier? [8M]

b) How does the depth of a polygon determined by the painter algorithm?

[8M]

6 A solid tetrahedron is given by position vectors A(1,1,1), B(3,1,1), C(2,1,3) and

D(2,2,2) with a point light source is kept at P(2,3,4). Using back face detection

method, find the surfaces on which the light falls and the surfaces which are to be

shaded.

[16M]

7 a) Discuss the important principles behind Computer Animation with suitable diagrams [8M]

b) What is animation? And give its application areas? [8M]

*****

R13

SET – 1

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) Give the functioning of Display processor. [4M]

b) What are filled area primitives? [3M]

c) How to Map a window to view port? [4M]

d) Explain about diffuse illumination. [4M]

e) What are composite transformations? [3M]

f) Define frame by frame animation. [4M]

PART -B

2 Explain the principle of following video display devices: (i) Cathode Ray Tube. (ii) Liquid Crystal Displays

[16M]

3 Digitize a line from (1, 2) to (12, 18) on a raster screen using Bresenham’s straight line

algorithm. Compare it with line generated using a DDA algorithm

[16M]

4 Explain Sutherland Hodgeman polygon clipping algorithm. List and Explain its

disadvantages and how to rectify them.

[16M]

5 a) Explain how to generate a Bezier Curve using the blending functions. [8M]

b) Give an overview of basic illumination methods.

[8M]

6 Derive the matrix form for the geometric transformations in 3D graphics from the

following operations: i) Translation ii) Scaling iii) Mirror reflection

[16M]

7 a) Design a Storyboard layout and accompanying key frame for an animation of a single

polyhedron.

[8M]

b) Describe various methods of controlling animation. [8M]

*****

R13

SET – 2

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) Distinguish between Raster and Random Scan display. [4M]

b) Where does overstrike occur When Four way symmetry is used to obtain a full

ellipse from pixel coordinates generated for first quadratic

[3M]

c) List the differences between aliasing and ant aliasing. [4M]

d) What are the properties of a Bezier curve? [4M]

e) Write down the uses of depth sorting algorithm. [3M]

f) List any four animation techniques. [4M]

PART -B

2 a) Explain the role of computer graphics in picture analysis. Give the advantages of

interactive graphics.

[8M]

b) List the important characteristics of video display device.

[8M]

3 a)Distinguish the merits and demerits of scan line and flood fill algorithms.

[8M]

b) With respect to 2D transformations explain Translation, Rotation and Scaling.

[8M]

4 Given a clipping window P (0, 0), Q (340, 0), R (340, 340) and S (0, 340). find the

visible portion of the line AB [(-170, 595), (170, 225)] and CD [(425, 85), (595,

595)] against the given window, using Cohen – Sutherland algorithm, showing all

the steps

[16M]

5 a) What are the three equivalent methods for specifying spline representation?

Describe.

[8M]

b) What is hermite spline and give the boundary condition for hermite curve?

[8M]

6 a) Explain the concept of Depth Buffer algorithm for detecting visual surface of a 3D

object.

[8M]

b) Define Tilting as a rotation about x axis followed by a rotation about y axis. Find the

tilting matrix? Does the order of performing tilting matters.

[8M]

7 a)How to specify Object motion in an animation system?

[8M]

b) List various types of animation languages. Describe various problems associated

with animation.

[8M]

*****

R13

SET – 3

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) What are the advantages and disadvantages of LCD over faster-scan CRT? [4M]

b) Compare homogeneous coordinated with screen coordinates. [3M]

c) What is the use of View Reference point? [4M]

d) Define Blending Functions. [4M]

e) Define classification. [3M]

f) How animation is used in multimedia? [4M]

PART -B

2 Describe the working methodology of various input devices used for developing

graphics applications.

[16M]

3 a) Describe the midpoint circle generation algorithm. State its advantages and

disadvantages over DDA circle generation algorithm.

[8M]

b) A point (3,5) is rotated anticlockwise by an angle of 45

0

. Find the rotation matrix

and resultant point.

[8M]

4 a) Explain Cyrus-beck line clipping algorithm. [8M]

b) What is the difference between window and viewport? How window-to-viewport

transformation is done?

[8M]

5 a) Explain the Properties of B – spline. How it is differ from Bezier? [8M]

b) How does the depth of a polygon determined by the painter algorithm?

[8M]

6 A solid tetrahedron is given by position vectors A(1,1,1), B(3,1,1), C(2,1,3) and

D(2,2,2) with a point light source is kept at P(2,3,4). Using back face detection

method, find the surfaces on which the light falls and the surfaces which are to be

shaded.

[16M]

7 a) Discuss the important principles behind Computer Animation with suitable diagrams [8M]

b) What is animation? And give its application areas? [8M]

*****

R13

SET – 1

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) Give the functioning of Display processor. [4M]

b) What are filled area primitives? [3M]

c) How to Map a window to view port? [4M]

d) Explain about diffuse illumination. [4M]

e) What are composite transformations? [3M]

f) Define frame by frame animation. [4M]

PART -B

2 Explain the principle of following video display devices: (i) Cathode Ray Tube. (ii) Liquid Crystal Displays

[16M]

3 Digitize a line from (1, 2) to (12, 18) on a raster screen using Bresenham’s straight line

algorithm. Compare it with line generated using a DDA algorithm

[16M]

4 Explain Sutherland Hodgeman polygon clipping algorithm. List and Explain its

disadvantages and how to rectify them.

[16M]

5 a) Explain how to generate a Bezier Curve using the blending functions. [8M]

b) Give an overview of basic illumination methods.

[8M]

6 Derive the matrix form for the geometric transformations in 3D graphics from the

following operations: i) Translation ii) Scaling iii) Mirror reflection

[16M]

7 a) Design a Storyboard layout and accompanying key frame for an animation of a single

polyhedron.

[8M]

b) Describe various methods of controlling animation. [8M]

*****

R13

SET – 2

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) Distinguish between Raster and Random Scan display. [4M]

b) Where does overstrike occur When Four way symmetry is used to obtain a full

ellipse from pixel coordinates generated for first quadratic

[3M]

c) List the differences between aliasing and ant aliasing. [4M]

d) What are the properties of a Bezier curve? [4M]

e) Write down the uses of depth sorting algorithm. [3M]

f) List any four animation techniques. [4M]

PART -B

2 a) Explain the role of computer graphics in picture analysis. Give the advantages of

interactive graphics.

[8M]

b) List the important characteristics of video display device.

[8M]

3 a)Distinguish the merits and demerits of scan line and flood fill algorithms.

[8M]

b) With respect to 2D transformations explain Translation, Rotation and Scaling.

[8M]

4 Given a clipping window P (0, 0), Q (340, 0), R (340, 340) and S (0, 340). find the

visible portion of the line AB [(-170, 595), (170, 225)] and CD [(425, 85), (595,

595)] against the given window, using Cohen – Sutherland algorithm, showing all

the steps

[16M]

5 a) What are the three equivalent methods for specifying spline representation?

Describe.

[8M]

b) What is hermite spline and give the boundary condition for hermite curve?

[8M]

6 a) Explain the concept of Depth Buffer algorithm for detecting visual surface of a 3D

object.

[8M]

b) Define Tilting as a rotation about x axis followed by a rotation about y axis. Find the

tilting matrix? Does the order of performing tilting matters.

[8M]

7 a)How to specify Object motion in an animation system?

[8M]

b) List various types of animation languages. Describe various problems associated

with animation.

[8M]

*****

R13

SET – 3

Code No: RT32032

III B. Tech II Semester Regular/Supplementary Examinations, April -2018

INTERACTIVE COMPUTER GRAPHICS (Mechanical Engineering)Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answering the question in Part-A is compulsory

3. Answer any THREE Questions from Part-B

*****

PART ?A

1 a) What are the merits and demerits of plasma panel display? [4M]

b) Define shear transformations and give its matrix form. [3M]

c) Why there is a need for clipping? [4M]

d) Distinguish Clipping and Culling. [4M]

e) Discuss how wireframe displays might be generated with the

various visible surface detection methods.

[3M]

f) List the differences between conventional and computer assisted animation. [4M]

PART -B

2 a) Describe the working principle and applications of faster scan display devices. [8M]

b) What is the role of workstation in computer graphics? List various essential input

devices.

[8M]

3 Explain midpoint circle algorithm. Given a circle radius r=10,

demonstrate the midpoint circle algorithm by determining positions

along the circle octant in the first quadrant from x=10 to x=y.

[16M]

4 a) What is the need of homogeneous coordinates? Give the homogenous coordinates

for translation, rotation, and scaling

[8M]

b) Develop the transformation for finding the reflection of a point w.r.t the line

ax+by+c=0.

[8M]

5 Derive the 3D transformation matrix to transform world coordinates to view

coordinates.

[16M]

6 Determine the Bezier blending functions for five control points. Plot

each function and label the maximum and minimum values.

[16M]

7 a) Explain various steps in designing animation sequence. [8M]

b) What is an animation? Give basic rules of animation. [8M]

*****

R13

SET – 4

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