Jawaharlal Nehru Technological University Kakinada 2009-2nd Sem B.Tech Computer Science and Engineering Code No: P0501/R05 ,Set No3, III Supplementary s, / COMPUTER GRAPHICS - Question Paper

For Code No: P0501/R05 ,Set No. 2, III .BTech II Semester Supplementary Examinations, Nov/Dec 2009 COMPUTER GRAPHICS,
see the subsequent attachment.

Code No: P0501/R05    Set No. 3

III B.Tech II Semester Supplementary Examinations, Nov/Dec 2009

COMPUTER GRAPHICS (Computer Science & Engineering)

Time: 3 hours    Max Marks: 80

Answer any FIVE Questions All Questions carry equal marks

1.    List the operating characterstics of

(a)    Raster refresh systems

(b)    Vector refresh systems

(c)    Plasma panel

(d)    LCDs.    [4x4=16]

2.    (a) Write the modified version of boundary-fill algorithm for a 4-connected region

to avoid excessive stacking by incorporating scan-line methods.

(b) Devise a parallel method for implementing line-type function.    [8+8]

3.    (a) Perform a 45⁰ rotation of a triangle A(0,0), B(1,1) and C(5,2) about P(-1,-1).

(b) Magnify the triangle with vertices A(0,0), B(1,1) and C(5,2) to thrice its size while keeping B(1,1) fixed.    [8+8]

4.    (a) List the algorithms which are suitable for line clipping when the clipping

polygon is non-rectangular window.

(b) Explain about the following categories of lines with respect to rectangular clipping window.    [8+8]

i.    Completely visible

ii.    Clipping-candidate

iii.    Completely invisible.

5.    (a) Determine the blending functions for uniform periodic B-spine curve for d=6.

(b) Write the equation for the basic illumination model using a single point light source and constant surface shading for the faces of a specified polyhedron.

[8+8]

6.    Given a unit cube with one corner at (0, 0, 0) and the opposite corner at (1, 1, 1), derive the transformations necessary to rotate the cube by d degrees about the main diagonal (from (0, 0, 0) to (1, 1, 1) in the counter clock-wise direction when looking along the diagonal toward the origin.    [16]

7.    (a) Explain the depth-buffer method to display the visible surfaces of a given

polyhedron.

(b) How can the storage requirements for the depth buffer be determined from the definition of the objects to be displayed?    [8+8]

8. (a) List and explain about the steps of animation.

(b) What are the various types of interpolation used in animation.

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Attachment: jawaharlal-nehru-technological-university-kakinada-2009-b-tech-computer-science-and-engineering-58166-1.pdf

Earning:   Approval pending.