Tribhuvan University
Bachelor of Information Technology
Semester 5 · TU Board 2081
Course Title: Computer Graphics (BIT304)
Full Marks: 60Pass Marks: 24Time: 3 hours
Candidates are required to give their answers in their own words as far as practicable.
Group A
Attempt any Two questions.(2 × 10 = 20)
- 1.10
Describe z-buffer method for visible surface detection. State its limitations and how these limitations can be reduced.
- 2.10
What is the role of clipping? Plot the line with end points (20, 10) and (30, 18) using DDA.
- 3.10
List the rotation matrix in clockwise direction with respect to x-axis, y-axis and z-axis. Rotate the object (0, 0, 0), (2, 3, 0), (5, 4, 0) about the rotation axis y = 4.
Group B
Attempt any Eight questions(8 × 5 = 40)
- 4.5
Write procedure to render the polygon surface by using Phong shading model.
- 5.5
Explain about parametric cubic curve with its properties.
Answer comingAlso asked in 2080
- 6.5
Digitize circle with center (0, 0) and radius = 6.
- 7.5
Explain the use of polygon tables for boundary representations.
- 8.5
Differentiate between raster scan and random scan display systems.
Answer comingAlso asked in 2080
- 9.5
What is intensity attenuation? Describe the various types of projection.
- 10.5
Explain about openGL and call back functions.
- 11.5
How the geometric and attribute information of a 3D objects are stored for the object representations? Explain with suitable example.
- 12.5
Write short notes on: a) Ambient light b) Diffuse reflection
Answer comingAlso asked in 2080
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