Questions
Syllabus
Qns. By Syllabus

Semester

Subject

Year

Tribhuwan University

Institute of Science and Technology

2080

Bachelor Level / Third Year / Fifth Semester / Science

Bachelors in Information Technology (BIT304)

(Computer Graphics)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

Candidates are required to give their answers in their own words as for as practicable.

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
Write the algorithm for Bresenham's line drawing? Digitize a line with end points A(6, 9) and B(10,5) using Bresenham's line drawing algorithm.[10]
2.
How can polygons be clipped? Describe Gouraud Shading model with necessary derivations.[10]
3.
Differentiate between parallel and perspective projection. Perform the rotation of triangle with vertices A(5,7), B(12,85) and C(5,3) counterclockwise 30 degree about the pivot point (5,3).[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
Explain motion capture with an example. [5]
5.
Explain architecture of random scan display systems with suitable diagram. [5]
6.
Explain Cohen-Sutherland Line Clipping algorithm with example. [5]
7.
Explain about parametric curve. Describe the properties of Bezier curve. [5]
8.
Reflect a line segment having end points (9,3) and (12,10) about a line X = 7. Draw initial and final result graph as well. [5]
9.
Explain ambient light, diffuse reflection and specular reflection with examples. [5]
10.
Explain the wireframe representation of 3D objects. [5]
11.
How does a polygon can be created in OpenGL? Illustrate with an example. [5]
12.
Write short notes a. Z-Buffer b. Polygon Table [5]