Bharathiar University 2009-5th Sem B.C.A Computer Application Bachelor of , - , Computer Graphics - Question Paper

Bachelor of Computer Application (BCA), NOV - 2009

Computer Graphics (Sem 5)


1. _____________ is described as the set of points such that the sum of the distances from 2 fixed positions is the identical for all points.
a. Circle
b. Ellipses
c. Triangle
d. None
1.0 Mark(s)
2. A _____________ is produced by caping the connection ranging from the 2 segments with a circular boundary whose diameter is equal to the line width.
a. Round join
b. Bevel join
c. Mitter join
d. None
1.0 Mark(s)
3. To control the location of a scaled object by choosing a position, called the _____________.
a. Fixed point rotation
b. Fixed point
c. various scaling
d. None
1.0 Mark(s)
4. _____________ clipping is applied less often than line or polygon clipping.
a. Text clipping
b. Line clipping
c. Point clipping
d. None
1.0 Mark(s)
5. A frequently used class of object are the _____________.
a. Quadric surfaces
b. Sphere
c. Ellipsoid
d. None
1.0 Mark(s)
6. The convex polygon boundary that encloses a set of control points is called _____________.
a. Control polygon
b. Convexhull
c. Characteristic polygon
d. None
1.0 Mark(s)
7. To used image-space approach to detecting visible surfaces is the _____________.
a. Back face detection
b. A buffer
c. Depth buffer method
d. None
1.0 Mark(s)
8. _____________ is useful when the view reference point modifications but the objects in a scene are at fixed positions.
a. BSP tree
b. Area subdivision
c. Octree method
d. None
1.0 Mark(s)
9. Constant-intesity shadding also called _____________.
a. Goward Shading
b. Flat shading
c. Phong Shading
d. None
1.0 Mark(s)
10. 2 color sources combine to produce white light they are referred to as _____________.
a. Complemetary colors
b. Color gamut
c. Primary colors
d. None
1.0 Mark(s)

11. a. explain character attributes.

Or

b. define the simple DDA algorithm for generating straight lines.
6.0 Mark(s)

12. a. discuss the scaling and translation transformation with their matrix representation.

Or

b. Write about windowing.
6.0 Mark(s)

13. a. discuss depth cueing.

Or

b. explain the technique for displaying 3D objects.
6.0 Mark(s)

14. a. what is depth-sorting method? discuss in detail.

Or

b. Write about curved surfaces.
6.0 Mark(s)

15. a. discuss RGB color model.

Or

b. define Halftone approximation techniques.
6.0 Mark(s)

16. a. define the algorithm for circle generation.

Or

b. discuss area-fill attributes.
12.0 Mark(s)

17. a. Write 2D composite transformation.

Or

b. explain the polygon clipping algorithms for clipping.
12.0 Mark(s)

18. a. discuss scaling and translation with respect to 3D objects.

Or

b. elaborate the different 3D display methods? Example.
12.0 Mark(s)

19. a. define in detail about depth-buffer method.

Or

b. explain Octree methods.
12.0 Mark(s)

20. a. discuss Polygon-Rendering methods.

Or

b. Write neat diagram of standard primaries the chromaticity and discuss.
12.0 Mark(s)

Earning:   Approval pending.