9

Soft Selection Rollout (NURBS) 1147
Point Surface rollout
This additional rollout appears when a point
surface is selected.
The close controls let you close a surface. They
appear on the Point Surface rollout while an
independentpointsurfacesub-objectisselected.
They have no effect if the surface is already closed
in that direction.
Close R ows—Closes the surface by joining the ends
of its rows.
Clo se Cols. —Closes the surface by joining the ends
of its columns.
Soft Selection Rollout (NURBS)
Modify panel > Select NURBS point or CV sub-objects. >
Soft Selection rollout
The soft selection controls for NURBS models
are like the soft selection controls for editable
mesh (page 1–996) objects. Soft selection controls
make a point or CV behave as if surrounded by a
"magnetic field." Unselected points or CVs within
thefieldaredrawnalongsmoothlywhileyoumove
the s elected one.
With this feature, you can sculpt the p oints or CVs
of a curve or surface. For example, you can dra w
asphereintoanegg,orgentlycurveaflatsurface
into hills and valleys.
With soft selection, transforming a single vertex can move
others.
The Soft Selection rollout for point and CV
sub-objectscontainsthecontrolsforthisfeature.
The S oft S elect ion check box is tur ned off by
default.
Before you begin, you might need to increase the
number of CVs or points on the surface. This
allows smoother and more complex reshaping
effects.
A single point or CV works well for many
purposes. Moving a point or CV along a sing le
axis is the most useful for smoothly raising and
lowering surfaces. For multiple points or CVs, you
can also use Rotate or Scale.