Download GTU BE/B.Tech 2019 Winter 6th Sem Old 160703 Computer Graphics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 6th Sem Old 160703 Computer Graphics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VI (Old) EXAMINATION ? WINTER 2019
Subject Code: 160703 Date: 04/12/2019

Subject Name: Computer Graphics

Time: 02:30 PM TO 05:00 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 (a) Discuss any five computer graphics applications. 07
(b) Explain working of CRT in detail with diagram 07

Q.2 (a) Why touch panels are used? Explain working of optical touch panel, electrical
touch panel and acoustical touch panel
07
(b) Explain refresh operation of video controller in raster-scan systems. 07
OR
(b) Find intermediate points of line from (6,6) to (14,10) using DDA line drawing
algorithm. Which are limitations of DDA line drawing algorithm?
07

Q.3 (a) What do you mean by inside-outside test? Explain Odd parity rule and Non-zero
winding number rule in detail.
07
(b) Write and explain mid point circle drawing algorithm. 07
OR
Q.3 (a) Explain any two methods of character generation. 07
(b) Apply following transformation to a triangle with coordinates A(2,5) , B(7,10)
and C(10,2)
(i) Translate original by 3 units in x direction and 4 units in y direction.
(ii) Scale original triangle by 1.5 unit in x-direction and 2 unit in y direction.
(iii) Rotate the original triangle by 45
0
about origin in clock wise direction
07

Q.4 (a) Why window to view port transformation is required? Explain this
transformation in detail.
07
(b) Explain Liang Barsky Line Clipping Algorithm with example 07
OR
Q.4 (a) Explain Bezier curves and surfaces. 07
(b) Explain 3D parallel projections 07

Q.5 (a) Explain RGB and YIQ color models 07
(b) What is polygon clipping? Explain Sutherland Hodgeman Polygon clipping with
example.
07
OR

Q.5 (a) Explain following illumination models: ambient light and diffuse refection 07
(b) What do you mean by composite transformation? Explain 3D Reflection and
Shears transformation in detail.
07

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