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Sci Vis 2 Midterm Review 4
Test Description: Review
Instructions: Answer all questions to get your test result.
1) How can a 2D texture appear seamless when applied to a 3D object?
A
shading
B
scaling
C
UVW mapping
D
tiling
2) What type of light in a 3D program does NOT come from any one point?
A
spot
B
local
C
point
D
ambient
3) In a three light layout, the light that is positioned above and to the front or side of the objects in the scene is the
A
backlight
B
key light
C
ambient light
D
fill light
4) What 3D mapping technique creates the illusion of shiny metals and glass by bouncing rays off the object's surface
A
bump map
B
UVW map
C
reflection map
D
solid map
5) Which term BEST describes a light that has an inside circle of bright light(hot spot) joined to an outside circle of light that gradually falls off and is less intense?
A
spot light
B
distance light
C
colonization of light
D
key light
6) What does the falloff setting change or do to a light setup in a 3D scene?
A
simulates the diminishing (fading) of a light's intensity over a distance
B
measures the amount of light fade or lessening of intensity
C
causes the light to dim in proportion to how far the light is away from its source
D
describes how the light's shadow is placed
7) What 3D scene light adds depth to the scene by separating the objects from the background, giving them more of a defined shape? This light is placed behind the objects in the scene and is about 50-100% of the intensity of the main light.
A
fill light
B
spot light
C
key light
D
back light
8) What camera technique is a measurement of focus accuracy for a given distance? For example, when one looks at a scene, the main subject may be in focus while the background and foreground would appear blurred?
A
zoom
B
depth of field
C
field of view
D
motion blur
9) What is true concerning light settings in a 3D animation program?
A
the location of the light is measured in the P axis
B
the light's color element uses the RGB scale
C
the light's angle of incidence specifies the P-axis location of a light
D
decreasing the light's intensity will make the light brighter
10) When working with a 3D model, what is UVW mapping?
A
how a texture map is applied to an object on the X,Y and Z axes
B
wire frame display used as a base to attach a texture map
C
the method of tiling or repeating a pattern on an object
D
A method of projection mapping used to apply a texture to an object
*select an answer for all questions
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