9

Mesh Select Modifier 721
Face —Selects a triangular face beneath the
cursor; region selection selects multiple triangular
faces within the region.
Polygon —Selects all coplanar faces (defined
by the value in the Planar Threshold spinner)
beneath the cursor. Usually, a polygon is the area
you see w ithin the visible wire edges. Region
selection selects multiple polygons within the
region.
El ement—Selects all contiguous faces in an
object. Region selection selects the same.
By Ver tex—Selects any sub-objects at the current
level that use a vertex you click. Applies to all
sub-object levels except Vertex. Also works with
Region Select.
Ignore B ack faces—Selects only those sub-objec ts
whose normals make them visible in the viewport.
When tu rned off (the default), selec tion includes
all sub-objects, regardless of the direction of their
normals.
Note: ThestateoftheBackfaceCullsettinginthe
Display panel doesn’t affect sub-object selection.
Thus, if Ignore Backfacing is tur ned off, you can
select sub-objects even if you can’t see them.
Note: The state of the Ignore Backfaces check bo x
also affects edge selection at the Edge sub-object
select ion level.
Ignore V isible Edges—When turned off (the
default), and you click a face, the selection won’t
go beyond the visible edges no matter what the
setting of the Planar Thresh spinner. When turned
on, face selection ignores the visible edges, using
the Planar Thresh setting as a guide. Enabled when
the Polygon face selec tion metho d is chosen.
Generally,ifyouwanttoselecta"facet"(acoplanar
collection of faces), you set the Planar Threshold
to 1.0. On the other hand, if you’re t rying to select
a c urved surface, i ncrease the value depending on
the amount of curvature.
Pla nar T hresh (Pla nar T hres hold)—Specifies the
threshold value that determines which faces are
coplanar for Polygon face selection.
GetfromOtherLevelsgroup
Appliesselectionsfromonesub-objectlevelto
another.
Get Ver tex Sel ection—Selects faces based on the
last vertex selection. Selects all faces shared by
any selected vertex. The selection is added to the
current selection. Available only when Vertex is
notthecurrentsub-objectlevel.
Get Face S election—Selectsverticesbasedonthe
last face/polygon/element selection. This selection
is added to the current selection. Available only
when Face/Polygon/Element is not the current
sub-object level.
Get Edge Sel ection—Selects faces based on the last
edge selection. Selects those faces that contain the
edge. Available only when Edge is not the current
sub-object level.
Select by Material ID group
Selects faces based on their material ID.
ID—Set the spin ner to the ID number you want to
select, and then click the Select button. Press
Ct rl
whileclickingtoaddtothecurrentselection,or
press
Alt to remove from the current selection.
Named S election Sets group
Thesefunctionsareprimarilyforcopying
named selection sets (page 1–67) of sub-objects
between sim ilar objects, and between comp arable
modifiers and editable objects. For example, you
canapplyameshselectmodifiertoasphere,
create a named selection set of edges, and then
copy the selection to a different sphere that’s been
converted to an editable mesh object. You can