**[Time: Three Hours] **

**[Total Marks: 80]**

**Please check whether you have got the right question paper.**

**N.B: (1) Question No.1 is compulsory**

** (2) Attempt any three of the remaining five questions**

** (3) Assume any suitable data if necessary and justify the same.
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Q. 1) a) Define the following terms: Resolution, Aspect Ratio, Phosphorescence, and Fluorescence. **(5M)**

b) What is the purpose of the Inside-Outside Test, explain any one method. **(5M)**

c) Draw the diagram of CRT and explain its working. **(5M)**

d) What do you understand by Control points, Degree of Continuity, Local and Global control w.r.t. Curve Generation? **(5M)**

Q. 2) a) Explain DDA Line drawing algorithm and Plot the points for line AB (A (10, 15) B (5,25) using it. **(10M)**

b) Explain the Area subdivision algorithm for hidden surface removal. **(10M)**

Q. 3) a) What is aliasing, how it affects the appearance of an object. Explain any two Antialiasing methods. **(10M)**

b) Explain Liang Barsky’s line clipping algorithm, what is its benefit over Cohen Sutherland’s algorithm? Clip the line with coordinates (5, 10) and (35, 30) against the window (xmin, ymin) = (10, 10) and (xmax, ymax) = (20, 20). **(10M)**

Q. 4) a) What is shading? Explain Gouraud and Phong Shading with their pros and cons. **(10M)**

b) Explain what is meant by B Spline curve? State the various properties of B Spline curve. **(10M)**

Q. 5) a) Explain the Scan line polygon fill algorithm with the help of suitable diagrams. **(10M)**

b) Explain the steps for 2D reflection w.r.t. line y=mx and also derive a composite transformation Matrix. **(10M)**

Q. 6) Write short notes on (any two) **(20M)**

a) Fractals

b) Sweep Representation and CSG Method

c) Bezier curve and the properties

d) Halftone and Dithering

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