NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
OCTOBER/NOVEMBER 2014 EXAMINATION

COURSE CODE:                                                                              CIT371                                                                

COURSE TITLE:                                                                             Introduction to Computer Graphics and Animation

DURATION:                                                                                     3 Hours

INSTRUCTIONS:                                                                            Answer any Five Questions

Q1a.     What is light?

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

     c.     Briefly explain colour concepts.

Q2a.     What is a Vector?

 b.     State the major difference between a point and a vector

 c.     What is raster graphics?

Q3.       Explain the following colour models

                        RGB colour model.

                        YIQ colour model.

                        CMYK colour model.

                        HSV and HSL colour model.

Q4a.     The applications of computer graphics are many and as such are classified into major areas. List three major areas in which they are classified.

     b.    Illustrate a graphic system using a detailed block diagram

Q5a.     Define what you understand by BRDF.

     b.    Explain the two properties of BRDFs.

     c.     State two additional physically based BRDFs properties.

Q6a.     Explain what is meant by motion capture.

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

Q7a.     Discuss/Explain  the Cognitive processes hypothesis.

     b.    Discuss any 3 processes of Traditional Animations