CG iclicker questions 2
These questions are mostly from slide sets 9_3 and 9_4.
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When the native American Samoset greeted the Pilgrims on 1621-03-16, what language did he speak?
- Abenaki
- Algonquin
- English
- Mohawk
- Wampanoag
-
Computing the effect of light reflecting off of one diffuse surface onto the other surfaces in the scene is called:
- Bitblt
- Bump mapping
- Environment mapping
- Radiosity
- Texture mapping
-
Painting a image onto a face to simulate fine detail is called:
- Bitblt
- Bump mapping
- Environment mapping
- Radiosity
- Texture mapping
-
Pretending to alter the normal vectors to the surface during rendering is called:
- Bitblt
- Bump mapping
- Environment mapping
- Radiosity
- Texture mapping
-
Quickly copying blocks of pixels from one buffer to another is called:
- Bitblt
- Bump mapping
- Environment mapping
- Radiosity
- Texture mapping
-
Reflecting the objects around a shiny object onto its surface is called:
- Bitblt
- Bump mapping
- Environment mapping
- Radiosity
- Texture mapping
Answer: slides 9_3.
-
Several coordinate systems are typically used in texture mapping. Which one may be used to model curves and surfaces?
- Lagrangian coordinates
- Object or World Coordinates
- Parametric coordinates
- Texture coordinates
- Window Coordinates
-
Which one is used to identify points in the image to be mapped?
- Lagrangian coordinates
- Object or World Coordinates
- Parametric coordinates
- Texture coordinates
- Window Coordinates
-
Which one is conceptually, where the mapping takes place?
- Lagrangian coordinates
- Object or World Coordinates
- Parametric coordinates
- Texture coordinates
- Window Coordinates
-
Which one is where the final image is really produced?
- Lagrangian coordinates
- Object or World Coordinates
- Parametric coordinates
- Texture coordinates
- Window Coordinates
Answers: slide 9_4_5.
-
Mathematically, the aliasing problem in CG
- happens when high frequency signals are not sampled often enough.
- happens when low frequency signals are sampled too often.
- is a new problem that did not occur with the old displays.
- can be reduced by subsampling and averaging
- both 1 and 4.