CG iclicker questions 2

These questions are mostly from slide sets 9_3 and 9_4.

  1. When the native American Samoset greeted the Pilgrims on 1621-03-16, what language did he speak?

    1. Abenaki
    2. Algonquin
    3. English
    4. Mohawk
    5. Wampanoag
  2. Computing the effect of light reflecting off of one diffuse surface onto the other surfaces in the scene is called:

    1. Bitblt
    2. Bump mapping
    3. Environment mapping
    4. Radiosity
    5. Texture mapping
  3. Painting a image onto a face to simulate fine detail is called:

    1. Bitblt
    2. Bump mapping
    3. Environment mapping
    4. Radiosity
    5. Texture mapping
  4. Pretending to alter the normal vectors to the surface during rendering is called:

    1. Bitblt
    2. Bump mapping
    3. Environment mapping
    4. Radiosity
    5. Texture mapping
  5. Quickly copying blocks of pixels from one buffer to another is called:

    1. Bitblt
    2. Bump mapping
    3. Environment mapping
    4. Radiosity
    5. Texture mapping
  6. Reflecting the objects around a shiny object onto its surface is called:

    1. Bitblt
    2. Bump mapping
    3. Environment mapping
    4. Radiosity
    5. Texture mapping

    Answer: slides 9_3.

  7. Several coordinate systems are typically used in texture mapping. Which one may be used to model curves and surfaces?

    1. Lagrangian coordinates
    2. Object or World Coordinates
    3. Parametric coordinates
    4. Texture coordinates
    5. Window Coordinates
  8. Which one is used to identify points in the image to be mapped?

    1. Lagrangian coordinates
    2. Object or World Coordinates
    3. Parametric coordinates
    4. Texture coordinates
    5. Window Coordinates
  9. Which one is conceptually, where the mapping takes place?

    1. Lagrangian coordinates
    2. Object or World Coordinates
    3. Parametric coordinates
    4. Texture coordinates
    5. Window Coordinates
  10. Which one is where the final image is really produced?

    1. Lagrangian coordinates
    2. Object or World Coordinates
    3. Parametric coordinates
    4. Texture coordinates
    5. Window Coordinates

    Answers: slide 9_4_5.

  11. Mathematically, the aliasing problem in CG

    1. happens when high frequency signals are not sampled often enough.
    2. happens when low frequency signals are sampled too often.
    3. is a new problem that did not occur with the old displays.
    4. can be reduced by subsampling and averaging
    5. both 1 and 4.