8
754 Chapter 8: Modifiers
Parameters rollout
Provides buttons for accessing different sub-object
levels, working with named selections and handles,
display settings, and information about selected
entities.
TheiconsatthetopoftheSelectionrolloutletyou
specify the method of face selection.
Clicking a button here is the same as choosing a
sub-object type in the modifier stack. Click the
buttonagaintoturnitoffandreturntotheObject
select ion level.
Note: You can convert sub-object selections in
two different ways with the use of the CTRL and
SHIFT keys:
• Clicking a sub-object button in the S election
rolloutwithCTRLhelddownconvertsthe
current selection to the new level, selecting
all sub-objects in the new level that touch t he
previous selection. For example, if you select
a vertex, and then CTRL+click the Polygon
button, all polygons that use that vertex are
selected.
• To conv ert the selection to only sub-objects
all of whose source components are originally
selected,holddownbothCTRLandSHIFT
as you change the level. For example, if you
convert a vertex selection to a polygon selection
with CTRL+SHIFT+click, the resultant
selection includes only those polygons al l of
whose vertices were original ly selected.
Vertex—Selects a vertex beneath the cursor;
region selec tion selects ver tices within the region.
Edge—Selects a polygon edge beneath the
cursor; region selection selects multiple edges
within the region.
Border—Turns on B order sub-object mo de,
which lets you select an area on a mesh that can
generally be described as a
hole
.Areaslikethisare
usually sequences of edges with faces on only one
side. For example, a b ox doesn’t have a b order, but
the Teapot object has several of them: on the lid,
on the body, on the spout, and two on the handle.
If you create a cylinder, then delete the top face,
the top row of edges forms a border.
When the Border sub-object level is active, you
can’t select edges that aren’t on borders. C licking a
single edge on a border selects that whole border.
Borders can be capped (either in editable poly or
by applying the cap holes modifier). They can also
be connected to another object (compound object
connect).
Poly gon—Selects all coplanar polygons
beneath the cursor. Usually, a polygon is the area
you see within the v isible wire edges. Region