CSIT 3rd Semester
Computer Graphics Board Question Paper 2082 Old Course

CSC 214-2082 ✡
Tribhuvan University
Institute of Science and Technology
2082
✡
Bachelor Level/Second Year/Third Semester/Science
Computer Science Information Technology (CSC 214)
(Computer Graphics)
(Old Course)
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 down the procedure of Liang Barsky line clipping algorithm. Use this algorithm to clip the line AB where A=(-5, 3) and B=(15, 9) against the window lower left corner at(0,0) and upper right corner at (10,10).

2.

Derive the Bresenham’s line drawing algorithm (BSA). Digitize the line with end points (2, 3) and (3, 8) using BSA algorithm.

3.

What do you mean by illumination models and Surface rendering? Explain Gourard shading method of surface rendering in detail.

Section B

Attempt any Eight questions

[8x5=40]
4.

List some color commands in open GL. How do you draw a pixel and lines?

5.

What is Bezier Curve? Write down the properties of Bezier Curve.

6.

Differentiate between flood fill and boundary fill algorithm.

7.

What is Virtual Reality? What are the different components of virtual reality?

8.

What is projection? Write down type parallel projection? Derive the transformation matrix for oblique parallel projection.

9.

What do mean by hidden surface removal? Explain Z-buffer method for hidden surface removal.

10.

Plot the ellipse centered at (0,0) with radius rx=8 and ry=6 using midpoint ellipse drawing algorithm.

11.

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.

12.

Write Short Notes:
a) Intensity Attenuation
b) BSP Tree