Ics2311:Computer Graphics Question Paper
Ics2311:Computer Graphics
Course:Bachelor Of Computer Science
Institution: Meru University Of Science And Technology question papers
Exam Year:2011
QUESTION ONE – 30 MARKS
(a) Given the rectangle (2,2), (2,8), (10,8), (10,2): (i) Translate it 2 units along x-axis and 3 units along y-axis (2Marks) (ii) Scale it by a factor 2 (2marks) (iii) Rotate it about the origin (2Marks) (iv) Flip it along x-axis (2Marks) (b) In a coloured screen create the image file for the following output. (6Marks)
Red Yellow Blue Red Yellow Blue Red Yellow Green Black Black White Black Black White
2
(c) Using DDA line drawing algorithms write a C++ code to display the following figure on the screen. (8Marks)
xxxxxxxxxxxx
x x
x x
x x
x x
xxxxxxxxxxxx
(d) Discuss the disadvantages of CRT Computer screens. (4Marks) (e) Differentiate between pillar boxing and letter boxing. (4Marks)
QUESTION TWO –20 MARKS (a) Describe the main steps in Digital Differential Analyzer algorithm. (7Marks) (b) Explain the three types of light reflection. (6Marks) (c) Outline how the symmetry or a circle improves the speed of circle drawing algorithms. (7Marks) QUESTION THREE – 20MARKS (a) Explain the four OpenGL related libraries. (8Marks) (b) Briefly explain the main steps in texture mapping. (6Marks) (c) Explain the two types of parallel projections. (6Marks) QUESTION FOUR – 20MARKS (a) Explain the four constraints in scan conversions. (4Marks) (b) Discuss two line clipping algorithm. (4Marks) (c) Discuss any four application areas of computer graphics (6Marks) (d) Discuss TWO colour models (6Marks)
QUESTION FIVE – 20MARKS (a) Discuss the problems of rasterization (6Marks) (b) Discuss the advantages of OLED computer screens (7Marks) (c) Differentiate between lossy and lossless image compression algorithms. (7Marks)
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