Computer graphics: display devices, line and circle algorithms, polygon fill, boundary-flood-fill, 2-D and 3-D transforms, viewing, clipping, spline and Bezier representations, illumination and rendering. - One Line Questions

1. Vector graphics display devices represent images using: — Mathematical descriptions of lines, curves, and shapes
2. The boundary fill algorithm requires which of the following as input? — A seed point and the boundary color
3. To perform complex transformations like rotation around an arbitrary point, we typically use: — A sequence of basic transformations
4. In the context of computer graphics, what does 'raster' refer to? — A grid of pixels
5. The Phong illumination model incorporates which of the following components? — Ambient, diffuse, and specular reflection
6. Perspective projection simulates the way the human eye perceives depth by making objects: — Appear smaller as they move further away
7. Which of the following is a common type of spline used in computer graphics? — All of the above
8. Which rendering technique can produce realistic reflections and refractions? — Ray tracing
9. Which algorithm is commonly used to draw a straight line on a raster display? — Both A and C
10. Which of the following is a common type of raster graphics display device? — All of the above
11. A shear transformation in 2D graphics: — Distorts the shape of an object along an axis
12. Spline representations are used in computer graphics to: — Model complex curves and surfaces smoothly
13. Illumination models in computer graphics are used to: — Determine how light interacts with surfaces
14. Rendering refers to the process of: — Creating a 2D image from a 3D scene description
15. In 3D graphics, the 'viewing transformation' is responsible for: — Defining the position and orientation of the camera
16. The Midpoint Circle Algorithm is an efficient method for generating: — Circles
17. Which type of display device uses a beam of electrons to illuminate phosphors on a screen? — CRT
18. Which clipping algorithm is generally more efficient for clipping lines against a rectangular window? — Cohen-Sutherland algorithm
19. Ambient light in an illumination model represents: — Light that has bounced off surfaces multiple times, providing general illumination
20. The Sutherland-Hodgman algorithm is primarily used for clipping: — Polygons against a convex clipping window
21. Rotating an object in 3D space can be performed around: — The X, Y, or Z axis, or any arbitrary axis
22. A Bezier curve is defined by a set of control points. The curve: — Is influenced by control points but doesn't necessarily pass through all of them
23. Which type of projection preserves parallel lines but can distort relative sizes? — Orthographic projection
24. The Cohen-Sutherland algorithm is a popular method for: — Line clipping
25. What is the Z-buffer algorithm primarily used for? — Hidden surface removal
26. A scaling transformation in 2D graphics changes the: — Size of an object
27. The 'viewing pipeline' in 3D graphics typically involves several stages. Which stage follows the modeling transformation? — Viewing transformation
28. Rasterization is a rendering technique that: — Projects 3D primitives onto a 2D image plane and fills pixels
29. Diffuse reflection in illumination models simulates light that: — Reflects equally in all directions
30. In 2D transformations, what does a translation operation do? — Moves an object from one position to another
31. Which 3D transformation changes the size of an object along one or more axes? — Scaling
32. Which polygon fill algorithm starts from a seed point inside the polygon and fills outward until it reaches a boundary color? — Both B and C
33. Homogeneous coordinates are often used in computer graphics to represent 3D transformations because they: — Allow translation to be represented by matrix multiplication
34. Ray tracing is a rendering technique that: — Simulates light rays bouncing off surfaces
35. The degree of a Bezier curve is determined by: — The number of control points minus one
36. Flood fill algorithm fills an area of a uniform color with a new color. It is similar to boundary fill but differs in: — The stopping condition
37. Specular reflection is responsible for: — Highlights and shininess on a surface
38. In 3D graphics, the 'projection plane' is: — The surface onto which the 3D scene is projected
39. Which of the following is a characteristic of B-spline curves? — They offer local control over the curve's shape.
40. What is the primary function of a 'clipping' operation in computer graphics? — To remove parts of objects that are outside a specified region
41. What is the purpose of the 'projection transformation' in 3D viewing? — To convert 3D coordinates to 2D screen coordinates
42. What is the primary goal of a polygon fill algorithm? — To color the interior of a polygon
43. What is the purpose of a 'frame buffer' in a display system? — To hold the color information for each pixel on the screen
44. Which 2D transformation rotates an object around a fixed point? — Rotation
45. Bresenham's line algorithm is preferred over DDA for line drawing on raster displays primarily because it: — Requires only integer arithmetic
46. The Gouraud shading model calculates lighting at the: — Vertex of each polygon
47. Phong shading calculates lighting at the: — Center of each pixel
48. In Bresenham's line algorithm, the decision parameter is used to determine: — Which pixel to choose next
49. A 'view volume' or 'clipping volume' defines the region of space that: — Will be visible to the camera
50. In 3D transformations, translation is achieved by adding offsets to the: — X, Y, and Z coordinates
All One Line Questions
E-Book Computer graphics: display devices, line and circle algorithms, polygon fill, boundary-flood-fill, 2-D and 3-D transforms, viewing, clipping, spline and Bezier representations, illumination and rendering. Online Test Computer graphics: display devices, line and circle algorithms, polygon fill, boundary-flood-fill, 2-D and 3-D transforms, viewing, clipping, spline and Bezier representations, illumination and rendering. Question Bank Computer graphics: display devices, line and circle algorithms, polygon fill, boundary-flood-fill, 2-D and 3-D transforms, viewing, clipping, spline and Bezier representations, illumination and rendering.