JNTU Kakinada B-Tech 2-1 R1621056 COMPUTER GRAPHICS R16 May 2018 Question Paper

Code No: R1621056
II B. Tech I Semester Supplementary Examinations, May – 2018
COMPUTER GRAPHICS (Computer Science & Engineering)Time: 3 hours Max. Marks: 70
Note: 1. Question Paper consists of two parts (Part-A and Part-B) 2. Answer ALL the question in Part-A
3. Answer any FOUR Questions from Part-B
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PART ?A
1. a)What is a View port (2M)
b)Distinguish the parallel projection and Perspective Projection view volumes. (3M)
c)Write about the primary and secondary colors. (2M)
d)List the problems with interpolated shading methods. (3M)
e)Write about Julia sets. (2M)
f)Where does the ray r(t)=(3,2,3) + (-3,-2,-3)t hit the generic sphere? (2M)
PART ?B
2. a) Devise an algorithm for adjusting the height and width of characters defined as
rectangular grid patterns. (7M)
b) Write a routine to split a concave polygon using the vector method. (7M)
3. a) Write a routine to convert the polygon definition of a three-dimensional object
into an octree representation. (7M)
b) Derive the matrix form for the cubic Bezier curves. (7M)
4. a)Explain in detail about the methods of controlling animation. (7M)
b) Explain the procedure for drawing three dimensional scenes. (7M)
5. a) Compare and contrast between flat and smooth shading models with necessary
examples. (7M)
b) Explain the implementation of a two-pass object-precision shadow algorithm. (7M)
6. a)Discuss the classification of Fractals. (7M)
b) Explain about Peano curves. (7M)
7. a)Explain various Boolean operations on compounded objects. (7M)
b)Discuss the intersecting rays with a Cube or any convex polyhedron. (7M)

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