Computer Graphics 2018 Question Paper — Government College of Enginee…

The 2018 Computer Graphics previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.

Instructions

Attempt five questions in all selecting at least two questions from each Section.
Each question carries 20 marks.

QQ1. a) Discuss and explain Bresenham's Line Algorithm. What are the advantages of Bresenham's over DDA line algorithm. (10) b) Write down the steps of mid point circle generation algorithm. (10) [20 marks]
QQ2. a) Write down the steps of mid point circle generation algorithm. (10) b) Explain the working of Direct view storage Tube in detail. (10) [20 marks]
QQ3. a) Differentiate between Raster scan and Random scan technologies. Discuss the advantages and disadvantages of each. (10) b) Explain with diagram the working of light pen. (10) [20 marks]
QQ4. a) Explain in brief the various 2-D geometric transformations. (10) b) Apply reflection transformation on the diamond shaped polygon whose vertices are A(-1, 0), B(0, -2), C(1, 0) and D(0, 2) about i. The horizontal line y = 2 ii. The vertical line x = 2 (10) [20 marks]

QQ5. a) Write pseudo code procedure to implement the boundary fill algorithm using the 4-connected definition for region pixels. (10) b) Write pseudo code procedure to implement the flood fill algorithm using the 4-connected definition for region pixels. (10) [20 marks]
QQ6. a) Explain the procedure for Sutherland Hodgman polygon clipping algorithm. (10) b) Explain with example mid-point line clipping algorithm.. (10) [20 marks]
QQ7. a) Differentiate between window and view port. Write the various steps for window to viewport co-ordinate transformation. (10) b) Explain the phong shading model in detail. (10) [20 marks]
QQ8. a) Discuss any two interpolative shading methods. (10) b) Find the perspective projection on to the view plane z = d where the center of projection is the origin. (10) [20 marks]