Computer Graphic (CG) Semester 4 (Revised Course) (3 Hours) December 2010

Computer Graphic (CG) Semester 4 (Revised Course) (3 Hours) December 2010
GT-6459 [Total Marks : 100]
N.B:	(1)	Questions no 1 is compulsory.
	(2)	Solve any four from remaining i.e. Q. 2 to Q. 7.
	(3)	Assume suitable data if necessary.
1.	(a)	Explain characters Generation methods.	05
	(b)	What is Phong's Shading Model?	05
	(c)	List and explain operations on segments.	05
	(d)	Draw Matrices for representing following operations :- (i) Translation (ii) Scaling (iii) Rotation.	05
2.	(a)	Derive Bresenham\s line drawing algorithm.	10
	(b)	Write pseudocoedes for boundary fill and flood fill procedure.	10
3.	(a)	Derive matrices for Rotation about an arbitary point.	10
	(b)	Explain warnock's Algorithm.	10
4.	(a)	What do you understand by Diffuse illumination and point Source Illumination?	05
	(b)	Write a short note on Bezier Curves?
	(c)	Write down all the matrices for Reflection for :- (i) line y = 0 (ii) line x = 0 (iii) line y = x (iv) line y =-x (v) about origin.	05
5.	(a)	Derive Mid point circle algorithm.	10
	(b)	Explain Text clipping with help of appropriate examples.	10
6.	(a)	What do you mean by specular Reflection?	05
	(b)	Explain fractals in brief.	05
	(c)	What is display file structure? Hence explain the need for display file interpreter	10
7.	(a)	illustrate inside-outside tests with examples.	10
	(b)	Explain Midpoint Subdivision Algorithm.