NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
OCTOBER 2013 EXAMINATION

COURSE CODE:                                                                              CIT371                                                                

COURSE TITLE:                                                                             Introduction to Computer Graphics and Animation

DURATION:                                                                                     3 Hours

INSTRUCTIONS:                                                                            Answer any Five Questions

Q1.       Outline four major areas of the applications of computer graphics.                                14 marks

Q2a.     Define what understand by BRDF                                                                                          4 marks

 b.     Explain the properties of BRDF                                                                                              6 marks

 c.     State two additional physically based BRDFs properties                                                                 4 marks

Q3a.     Explain fully what is meant by raster graphics image                                                          5 marks

     b.    What is animation? 3 marks

     c.     State the effect of animation and the most common methods of presenting animation.    6marks

Q4a.     What are transformations used for in computer graphics?                                            2½ marks

     b.    Outline, with example each, the three basic classes of transformations                                        9 marks

     c.     What are homogeneous coordinates?                                                                               2½ marks

Q5a.     Explain what is meant by motion capture.                                                                                         4 marks

     b.    State five advantages and five disadvantages of motion capture.                                     10 marks

Q6a.     What is light?                                                                                                                             2 marks

     b.    Explain the following properties of light: reflection and refraction.                                   6 marks

     c.     Briefly explain colour concepts.                                                                                              6 marks

Q7a.     What do you understand by Keyframing?                                                                                         3 marks

     b.    State two advantages and two disadvantages of Keyframing                                              4 marks

     c.     Explain what is meant by simulation                                                                                      3 marks

     d.    Outline two types of simulation                                                                                               4 marks