The Selection rollout
provides buttons for turning different sub-object levels on and
off, working with named selections and handles, display settings,
and information about selected entities.
When you first access
the Modify panel with an editable mesh selected, you're at the Object
level, with access to several functions available as described in
Mesh (Object). You can toggle the various
sub-object levels, and access relevant functions by clicking the
buttons at the top of the Selection rollout.
Clicking a button here
is the same as selecting a sub-object type in the Modifier Stack
display. Click the button again to turn it off and return to the
Object selection level.
The Selection rollout
also allows you to display and scale vertex or face
Turns on Vertex sub-object
level, which lets you select a vertex beneath the cursor; region
selection selects vertices within the region.
Accesses the Edge sub-object
level, which lets you select the edge of a face or polygon beneath
the cursor; region selection selects multiple edges within the region.
At the Edge sub-object level, selected hidden edges are displayed
as dashed lines, allowing for more precise selection.
Accesses the Face sub-object
level, which lets you select a triangular face beneath the cursor;
region selection selects multiple triangular faces within the region.
If a selected face has a hidden edge and
Selected Faces is off, the edge is displayed
as a dashed line.
Accesses the Polygon sub-object
level, which lets you select all coplanar faces (defined by the
value in the Planar Threshold spinner) beneath the cursor. Usually,
a polygon is the area you see within the visible wire edges. Region
selection selects multiple polygons within the region.
Accesses the Element sub-object
level, which lets you select all contiguous faces in an object.
Region selection lets you select multiple elements.
- By Vertex
When on, and you click
a vertex, any sub-objects (at the current level) that use that vertex
are selected. Also works with Region Select.
NoteWhen By Vertex is
on, you can select sub-objects only by clicking a vertex, or by region.
- Ignore Backfacing
When on, selection of sub-objects
selects only those sub-objects whose normals are visible in the
viewport. When off (the default), selection includes all sub-objects, regardless
of the direction of their normals.
NoteThe state of the
Backface Cull setting in the Display panel does not affect sub-object
selection. Thus, if Ignore Backfacing is off, you can still select
sub-objects, even if you can't see them.
- Ignore Visible Edges
This is enabled when
the Polygon face selection method is chosen. When Ignore Visible
Edges is off (the default), and you click a face, the selection
will not go beyond the visible edges no matter what the setting
of the Planar Thresh spinner. When this is on, face selection ignores
the visible edges, using the Planar Thresh setting as a guide.
Generally, if you want
to select a "facet" (a coplanar collection of faces), you set the Planar
Threshold to 1.0. On the other hand, if you're trying to select
a curved surface, increase the value depending on the amount of curvature.
- Planar Thresh(Planar
Threshold) Specifies the threshold value that determines which faces
are coplanar for Polygon face selection.
- Show Normals
When on, 3ds Max Design displays
the viewports. Normals are displayed as blue lines.
Show normals is not available
in Edge mode.
the size of the normals displayed in the viewport when Show is on.
- Delete Isolated Vertices
When on, 3ds Max Design eliminates
any isolated vertices when you delete a contiguous selection of
sub-objects. When off, deleting a selection leaves all vertices
intact. Not Available at the Vertex sub-object level. Default=on.
An isolated vertex is
one that has no associated face geometry. For example, if Delete Isolated
Vertices is off and you delete a rectangular selection of four polygons,
all clustered about a single central point, the point remains, suspended
Hides any selected sub-objects.
Edges cannot be hidden.
Select Invert command on the 3ds Max Design Edit menu is useful for
selecting faces to hide. Select the faces you want to focus on,
Invert, then click the Hide button.
- Unhide All
Restores any hidden objects
to visibility. Hidden vertices can be unhidden only when in Vertex