CS602 - Computer graphics finalterm papers

Total Question 45
30 objective and 15 subjective
Write down the name of difference types of perspective projection.
What is meant by evaluator?
2 marks
2 marks
What is the difference between the triangle fan and strip? Explain with the help
of figure.
3 marks
What the main difference between the orthographic and oblique. 3marks
Why transformation is most important in computer Graphic
3 marks

Code:

#define pi 3.14159265
#define Edges 30
/ draw the circle /
glBegin (GL_LINE_STRIP);
for (i= 0; i<=EDGES; i )
glVertex 2f (cos((2*Pi *I;)/EDGES), sin((2*Pi *I;)/EDGES);
glend);

Explain why this code is called bad consulting a closed surface.etc
3 marks
Which type of light from parallel light point light and spot light you should
prefer in your lightening model in the case
A. Limited computation recourses.
B. no problem of computation recourses we need a realistic scene.
5 marks
Explain how subdivision function of triangle helps improving the polygonal
model surface.
5 marks
Suppose the refractive index of the material is 1.7 and refractive of air is 1 now
calculating its critical angle5 marks.

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Today was my ppr. gone wel.
total 45 questions, 35 were multiple choice questions n the left wre dscrptve.
* what function is used to resize window? 2 mrks
* what is the dffrnce btween backscattering and forward scattrng? 3 mrks
* which function is used to initialize lighting in opnGL? 2 mrks
* what is the traditional way to calculate lighting? 3 mrks.
* matrix addition was to performed? 2 marks
* if the temperature of water changes does it effects the refractive index of water? 5 marks
* the steps to use 2D evaluator? 3 mrks
* what is alpha blending? 3 mrks
* figure 1 that is on pg 383 of hndouts was given to discuss? 2 mrks
* what is paramtric equation of crves? 5 mrks.
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