Computer Graphics (January – 2017) [IDOL - Revised Course | Question Paper]

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Time: 3 Hours

Total Marks: 100

N.B.:      (1) All Questions are Compulsory.

               (2) All question carry equal marks.

Q.1 Attempt Both The Question: (10 Marks)
(A) Explain the following terms with proper examples Object, Image, Computer Graphics.
(B) What are the types of Computer Graphic? Explain them in brief.

Q.2 Attempt Any Three From The Following: (15 Marks)
(A) Write short note on Bitmap & Vector Based Images.
(B) Explain the working of CRT with a neat labelled diagram.
(C) Explain in detail about Bresenham’s line generating algorithm. Give example.
(D) Describe in detail about the DDA Scan Conversion Algorithm?

Q.3 Attempt Any Three From The Following: (15 Marks)
(A) Derive the Transformation Matrix for rotation about Arbitrary Point.
(B) Discuss shear 2D Transformation in brief.
(C) Write a note on:
      (i) 2-D Transformation
      (ii) 2-D Reflection
(D) Write a short note on homogenous co-ordinates.

Q.4 Attempt Any Three From The Following: (15 Marks)
(A) Give the matrix representation for the following 3D transformation
      (i) Translation
      (ii) Rotation
(B) Explain in detail about 3D Window to viewport coordinate transformation.
(C) Explain Parallel Projection in detail.
(D) Write short notes on perspective projection.

Q.5 Attempt Any Three From The Following: (15 Marks)
(A) Explain the concept of Windowing and Clipping.
(B) Explain Cohen Sutherland Line Clipping Algorithm with suitable example.
(C) Explain the concept of aliasing and anti-aliasing in detail.
(D) Explain the concepts of Half Thresholding and Dithering.

Q.6 Attempt Any Three From The Following: (15 Marks)
(A) Write a short note on B-spline Curve.
(B) Explain the painter’s Algorithm for Hidden Surface Removal.
(C) Write a note on Back-face culling.
(D) Explain the Z-Buffer Algorithm.

Q.7 Attempt Any Three From The Following: (15 Marks)
(A) Write a short on morphing and state its advantages.
(B) Write a short note on transparency.
(C) Explain the concept of Ray Tracing.
(D) Explain in detail about CMY Color Model.