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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
tiling
D
UVW mapping
2) What type of light in a 3D program does NOT come from any one point?
A
spot
B
ambient
C
point
D
local
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
key light
B
ambient light
C
fill light
D
backlight
4) What 3D mapping technique creates the illusion of shiny metals and glass by bouncing rays off the object's surface
A
solid map
B
bump map
C
reflection map
D
UVW 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
causes the light to dim in proportion to how far the light is away from its source
B
simulates the diminishing (fading) of a light's intensity over a distance
C
describes how the light's shadow is placed
D
measures the amount of light fade or lessening of intensity
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
back light
B
key light
C
fill light
D
spot 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
field of view
B
motion blur
C
depth of field
D
zoom
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
A method of projection mapping used to apply a texture to an object
B
wire frame display used as a base to attach a texture map
C
how a texture map is applied to an object on the X,Y and Z axes
D
the method of tiling or repeating a pattern on an object
*select an answer for all questions
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