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748 Chapter 8: Modifiers
NSurf Sel can select any kind of NURBS
sub-objects except imports. Each sub-object
selection is of one particular sub-object level only.
Note: The NSurf Sel modifier doesn’t support
copying and pasting selections as Mesh Select (page
1–719) does. Copying and pasting mesh selections
is based on vertex indexes. NURB S selections are
based on object IDs, which are unique to each
model.
Procedure
To us e t he NS ur f S el (N URB S Su r f ace S election)
modif ier :
1.
With a NURBS object selected in the
Modify command pa nel, apply NSurf Sel.
Thismodifierhasnocontrolsatthetoplevel.
2. In the stack display, choose a sub-object level
from the list.
NSurf Sel has the same selection controls you
see for NU RBS surfaces, except that selecting
connectedcurvesorsurfacesisnotavailable.
For more information on the stack display, see
Modifier Stack (page 3–760).
While applying the modifier, you can also select
NURBS sub-objects by name. Turn on the
Keyboard Shortcut Override toggle (page 3–872)
and then press the
H key . This displays a
version of the Select Objects dialog (page 1–78)
that lists only sub-objects at the current level.
Chooseoneormoreobjectsinthelist,and
then click Select.
3. Usetheselectioncontrolstocreateaselection
set of the chosen sub-object ty pe.
With NSurf S el, the selection can be of surface
CV or surface sub-objects. If you turn on
Relational Stack for the NURBS object, you
can a lso select point, curve, and curve CV
sub-objects.
4. At the Surface CV sub-object level, adjust S oft
Selectioncontrolsasyouwish.Thesecontrols
arethesameasthoseintheSoft Selection rollout
(page 1–1147) for NURBS curves and surfaces,
exceptthattheSameTypeOnlytoggleisabsent.
Once you’ve used the modifier to create the
selection, you can apply other modifiers to it.
Optimi ze M odif ier
Select an object. > Modify panel > Modifier List >
Optimize
Select an object. > Modifiers menu > Mesh Editing >
Optimize
The Optimize modifier lets you reduce the number
of faces and vertices in an object. This simplifies
the geometry and speeds up rendering whi le
maintaining an acceptable image. A Before/After