BIT 5th Semester
Computer Graphics Board Question Paper 2080

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BIT 304-2080 ✡
Tribhuvan University
Institute of Science and Technology
2080
✡
Bachelor Level/Third Year/Fifth Semester/Science
Bachelors in Information Technology (BIT 304)
(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 Answer Questions
Attempt any Two question.
[2x10=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.

2.

How can polygons be clipped? Describe Gouraud Shading model with necessary derivations.

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).

Section B

Attempt any Eight questions

[8x5=40]
4.

Explain motion capture with an example.

5.

Explain architecture of random scan display systems with suitable diagram.

6.

Explain Cohen-Sutherland Line Clipping algorithm with example.

7.

Explain about parametric curve. Describe the properties of Bezier curve.

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.

9.

Explain ambient light, diffuse reflection and specular reflection with examples.

10.

Explain the wireframe representation of 3D objects.

11.

How does a polygon can be created in OpenGL? Illustrate with an example.

12.

Write short notes
a. Z-Buffer
b. Polygon Table