computer graphics (cg)

Gujarat Technological University

Exam Details

Subject computer graphics (cg)
Paper
Exam / Course mca
Department
Organization Gujarat Technological University
Position
Exam Date May, 2018
City, State gujarat, ahmedabad


Question Paper

1
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
MCA SEMESTER IV • EXAMINATION SUMMER 2018
Subject Code: 640008 Date: 30-May-2018
Subject Name: Computer Graphics
Time: 10.30 am to 1.00 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1
Explain the following term.
14
Resolution Gray Scale
Homogeneous Coordinates View volume
CAD Aspect ratio
Random scan system
Q.2

Explain the difference between OpenGL core library, the OpenGL Utility and the OpenGL Utility Toolkit. And explain the following function
glutInit(
glutInitDisplayMode(
07

Describe emissive and nonemissive displays and explain any one nonemissive flat panel display device.
07
OR

Explain Midpoint circle algorithm.
07
Q.3

Use Bresenham's line algorithm to derive decision parameter and explain in detail.
07

Write Short note on:
Color table
Line attributes
07
OR
Q.3

Describe Midpoint ellipse algorithm.
07

Write Short note on:
Odd-even rule
Polygon tables
07
Q.4

Explain Boundary-fill algorithm using 8-connected method and write the procedure for same.
07

Describe two-dimensional composite transformation and explain the composite matrix for General two-dimensional pivot-point rotation
Composite two-dimensional scaling
07
OR
Q.4

What is antialiasing? Why is it used? Explain various methods used for antialiasing.
07

Explain three-dimensional reflection and three-dimensional shears
07
Q.5

Explain Liang-Barsky line clipping algorithm.
07

Explain Oblique parallel projection and derive the equation for obtaining projection point for same
07
OR
Q.5

Explain Sutherland Hodgman polygon clipping algorithm.
07

Explain perspective projection. What is vanishing point? Describe various vanishing point for perspective projection.
07



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