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946 Chapter 9: Surface Modeling
Part ially selected sub-objects within the field
are drawn along smoothly as you transform the
sub-object selection; the effect diminishes with
distance or the “strength” of the par tial select ion.
This fa lloff is visible in the viewports as a color
gradient surrounding the selection, conforming
to the first part of the standard color spectrum:
ROYGB (red, orange, yellow, green, blue).
Red sub-objects are those you select explicitly.
The hig hest-value soft-selected sub-objects are
reddish-orange; they have the same selection
value as red sub-objects, and respond the same
way to manipulation. Orange sub-objects ha ve
aslightlylowerselectionvalue,andrespond
to m anipulation a bit less st rongly than do red
and reddish-orange vertices. Yellow-orange
sub-objectshaveanevenlowerselectionvalue,
and then yellow, green-yellow, and so on. Blue
sub-objects are effect ively unselected and don’t
respond to manipulation, except as required by
neighboring soft-selected sub-objects.
Normally, you designate a soft selection
procedurally, by setting parameters and then
selecting sub-objects. You can also “paint” a soft
selectionexplicitlyonpolyobjects.See
Paint Soft
Selection g roup (page 1–948)
.
By default, the soft-selection region is spherical
w ithout regard to geometric str ucture.
Alternatively, you can use the
Edge Distance
option
to limit the selection to vertices in
contiguous faces.
If a sub-object selection is passed up the mo difier
stack, and Use Soft Selection is on, the results of
modifiers that deform the object, such as Bend
and XForm, are affected by the Sof t S election
parameter values.
ThecontrolsinthisdialogletyoumodifySoft
Selection parameters. All sub-object levels share
thesameSoftSelectionparametervalues. Soft
Selection is available for NURBS, mesh, poly,
patch, and spline objects.
Soft selection colors and effect on the surrounding area
Interf ace
Use Sof t S el ection—Affects the action of Move,
Rotate, and Scale functions within the editable
object or Edit modifier, as well as the action of
deformation modifiers applied to the object if they
are operating on a sub-object selection (the latter
also applies to the Select modifiers). When on,
thesoftwareappliesasplinecurvedeformation
to the unselected sub-objects surrounding the
selection you transform. To take effect, this check