Computer Graphics (January – 2014) [IDOL - Revised Course | Question Paper]

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Time: 3 Hours

Total Marks: 100

N.B.:     (1) Questions No. 1 is Compulsory.

Q.1 Attempt Both The Question: (10 Marks)

(A) Describe the DDA Line drawing algorithm. Calculate the pixel positions along straight line between (5, 5) and (10, 8).

(B) What are different types of surface representation?

Q.2 Attempt Any Three From The Following: (15 Marks)

(A) Write a short note on Raster Scan Display?

(B) Define Computer Graphics ad list down the applications of Computer Graphics.

(C) Explain the working principle o CRT.

(D) Explain the steps for Midpoint Circle Generation Algorithm.

Q.3 Attempt Any Three From The Following: (15 Marks)

(A) What is mean by Homogeneous CO-ordinates?

(B) Write down the 2-D Transformation Matrix for Translation and Rotation.

(C) Find the 2-D Transformation Matrix that transforms the given square ABCD to half its size with the center still remaining at the same position. The coordinates of the square are A (1, 1), B (3, 1), C (3, 3) and D (1, 3) and center at (2, 2). Also find the resultant coordinates of the square.

(D) Define the Shear effect and give Shear Transformation.

Q.4 Attempt Any Three From The Following: (15 Marks)

(A) Does 3D Rotation Commutative? Justify the answer.

(B) Write a short note on 3D Scaling.

(C) Write a short note on Parallel Projection. How does id differ from Perspective Projection?

(D) What is mean by device co-ordinates?

Q.5 Attempt Any Three From The Following: (15 Marks)

(A) Write a short notes on Inside/Outside Test. And give a situation when Inside/Outside Test Fails.

(B) Develop a function/procedure which performs line clipping using Cohen Sutherland method, how line between (2, 2) and (12, 9) is clipped against window with (Wxmin, Wymin)=(4, 4) and (Wxmax, Wymax)=(9, 8).

(C) Write the procedure for seed fill algorithm.

(D) What is Windowing and Clipping?

Q.6 Attempt Any Three From The Following: (15 Marks)

(A) Define Bezier Curve and state the property of it.

(B) What are Namable and Unnamable Curve? 

(C) What are Fractals? State its properties.

(D) Explain basic concepts of Painter’s Algorithm.

Q.7 Attempt Any Three From The Following: (15 Marks)

(A) Write a short note on Polygon Mesh Shading.

(B) Write a short note on Morphing? List its advantages.

(C) Write a short note on Ray Casting.

(D) What is Shading and explain the concept of Flat Shading.