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1030 G lossa ry
Velocity Interpolation
One method of interpolation used in motion flow
editing (page 2–1026). By default, in a transition
between two motion clips, velocity is interpolated
to blend smoothly between clips. If transitions are
optimized, then a sophisticated algorithm is used
that m inimizes sliding feet.
Vertex
A vertex (plural form: vertices) is a single point
whosesolepropertyisitspositionin3Dspace,
which is typically defined by values for the X axis,
Y axis, and Y axis. Vertices form the basic st ructure
of geometric objects in 3ds Max, including mesh
objects, splines, NURBS, and patches.
Video Safe Frame
Safe frame borders show which portions of a viewport will be
visible when rendered to video.
TheVideoSafeFrameprovidesaguidetohelp
avoid rendering port ions of your image that might
be blocked in the final output.
For example, to ensure that no unintentional
black areas are visible on a television screen,
broadcasters intentionally "o v erscan" the video
image. Theresultisthatportionsofanimage
aroundtheedgesarenotvisibleonatypicalset.In
addition, portions of images on 35mm slides can
be part ially covered by the slide mounts.
Youcanadjustthesizeofthesafeframeas
a percentage of the outer display rectangle
withtheSafe-FramecontrolsintheViewport
Configuration dialog . Depending upon its size,
thesafeframecanbeusedastheequivalentofa
"title safe frame" (t he area inside which it is safe to
display titles), or an "action safe frame" (the area
inside which action may occur without significant
loss of information).
To view the frames, choose Show Safe Frame
from the viewport right-click menu (displayed
when you right-click the viewport label). Three
rectangles,oneyellow,onegreen,andonepale
blue, appear in the camera view port. The outer,
yellow video rectangle is the area and aspect
ratio of your current display. The middle, g reen
rectangle is the action safe zone. The inner, pale
bluerectangleisthetitlesafezone.
Choose Show Safe Frame again to turn off the
display.
Viewport (I ntera ctiv e) R ender er
The interactive renderer, used for the viewports,
is designed for speed so you can easily manipulate
your objects in a shaded environment. It’s not the
same as the production renderer, which is used for
your final images. Therefore, a number of effects
that are available to the production renderer will
not show up in the viewports.
When you design your materials, for example, you
have four levels of visual feedback. The lowest
level is the shaded viewport. The next level is
an ActiveShade viewport (or floater). The next
level is the sample slot, which uses the production
renderer to display the sample sphere. The
highest level is the rendered scene, w hich uses the
production renderer to display the scene.
A single material can contain any number of maps.