Command entry:Select an editable poly object. Quad menu Tools 1 quadrant Vertex
Vertices are points in space: They define the structure of other sub-objects (edges and polygons) that make up the poly object.
When you move or edit vertices, the connected geometry is affected as well. Vertices can also exist independently; such isolated
vertices can be used to construct other geometry but are otherwise invisible when rendering.
At the editable poly Vertex sub-object level, you can select single and multiple vertices and move them using standard methods.
This topic covers the Edit Vertices and Vertex Properties rollouts and provides links to the rest.
To weld polygon vertices:
You can use either of two methods to combine several vertices into one, also known as welding. If the vertices are very close
together, use the Weld function. You can also use Weld to combine a number of vertices to the average position of all of them.
Alternatively, to combine two vertices that are far apart, resulting in a single vertex that's in the same position as one
of them, use Target Weld.
To use Weld:
If the vertices are very close together, simply click Weld. If they are farther apart, click (Settings) to the right of the Weld button. This opens the Weld Vertices caddy, where you can increase the Weld Threshold. Once you change Weld Threshold, it remains at the new value until you change
it again, or until the end of the 3ds Max session.
To use Target Weld:
The two vertices must be contiguous; that is, they must be connected by a single edge.
To select vertices by color:
In the Vertex Properties rollout Select Vertices By group, click the color swatch, and specify the color of vertex you want in the Color Selector.
Specify ranges in the RGB Range spinners. This lets you select vertices that are close to the specified color, but don't match
Click the Select button.
All vertices matching the color, or within the RGB range, are selected.
You can add to the selection by holding Ctrl as you click the Select button, and subtract from the selection by holding the Alt key.
TipYou can select all vertices of the same color by first selecting the vertex you want matched, dragging a copy of the Edit
Color swatch to the Existing Color swatch, and then clicking the Select button. (If you want an exact match, be sure to set
the RGB Range spinners to 0 first.)
See Editable Poly for information on the Selection rollout settings.
Soft Selection rollout
Soft Selection controls apply a smooth falloff between selected sub-objects and unselected ones. When Use Soft Selection is
on, unselected sub-objects near your selection are given partial selection values. These values are shown in the viewports
by means of a color gradient on the vertices, and optionally on the faces. They affect most types of sub-object deformations,
such as the Move, Rotate, and Scale functions, as well as any deformation modifiers (such as Bend) applied to the object.
This provides a magnet-like effect with a sphere of influence around the selection.
This rollout includes commands specific to vertex editing.
NoteTo delete vertices, select them and press the Delete key. This can create one or more holes in the mesh. To delete vertices without creating holes, use Remove (see following).
Deletes selected vertices and combines the polygons that use them. The keyboard shortcut is Backspace.
Removing one or more vertices deletes them and retriangulates the mesh to keep the surface intact. If you use Delete instead,
the polygons depending on those vertices are deleted as well, creating a hole in the mesh.
WarningUse of Remove can result in mesh shape changes and non-planar polygons.
Creates a new vertex for each polygon attached to selected vertices, allowing the polygon corners to be moved away from each
other where they were once joined at each original vertex. If a vertex is isolated or used by only one polygon, it is unaffected.
Lets you extrude vertices manually via direct manipulation in the viewport. Click this button, and then drag vertically on
any vertex to extrude it.
Extruding a vertex moves it along a normal and creates new polygons that form the sides of the extrusion, connecting the vertex
to the object. The extrusion has the same number of sides as the number of polygons that originally used the extruded vertex.
Following are important aspects of vertex extrusion:
When over a selected vertex, the mouse cursor changes to an Extrude cursor.
Drag vertically to specify the extent of the extrusion, and horizontally to set the size of the base.
With multiple vertices selected, dragging on any one extrudes all selected vertices equally.
You can drag other vertices in turn to extrude them while the Extrude button is active. Click Extrude again or right-click
in the active viewport to end the operation.
If you click this button after performing a manual extrusion, the same extrusion is performed on the current selection as
a preview and the caddy opens with Extrusion Height set to the amount of the last manual extrusion.
Combines contiguous, selected vertices that fall within the tolerance specified in Weld Vertices caddy. All edges become connected to the resulting single vertex.
Using Weld at the Vertex level
Vertices farther apart than the Threshold distance are not welded.
Weld is best suited to automatically simplifying geometry that has areas with a number of vertices that are very close together.
Before using Weld, set the Weld Threshold via the Weld caddy. To weld vertices that are relatively far apart, use Target Weld instead.
Click this button and then drag vertices in the active object. To chamfer vertices numerically, click the Chamfer Settings
button and use the Chamfer Amount value.
If you chamfer multiple selected vertices, all of them are chamfered identically. If you drag an unselected vertex, any selected
vertices are first deselected.
Each chamfered vertex is effectively replaced by a new face that connects new points on all edges leading to the original
vertex. These new points are exactly <chamfer amount> distance from the original vertex along each of these edges. New chamfer
faces are created with the material ID of one of the neighboring faces (picked at random) and a smoothing group which is an
intersection of all neighboring smoothing groups.
For example, if you chamfer one corner of a box, the single corner vertex is replaced by a triangular face whose vertices
move along the three edges that led to the corner. Outside faces are rearranged and split to use these three new vertices,
and a new triangle is created at the corner.
Alternatively, you can create open space around the chamfered vertices; for details, see Chamfer.
Top: The original vertex selection
Center: Vertices chamfered
Bottom: Vertices chamfered with Open on
Opens the Chamfer caddy, which lets you chamfer vertices via interactive manipulation and toggle the Open option.
If you click this button after performing a manual chamfer, the same chamfer is performed on the current selection as a preview
and the caddy opens with Chamfer Amount set to the amount of the last manual chamfer.
Allows you to select a vertex and weld it to a neighboring target vertex. Target Weld works only with pairs of contiguous
vertices; that is, vertices connected by a single edge.
In Target Weld mode, the mouse cursor, when positioned over a vertex, changes to a + cursor. Click and then move the mouse;
a dashed, rubber-band line connects the vertex to the mouse cursor. Position the cursor over another, neighboring vertex and
when the + cursor appears again, click the mouse. The first vertex moves to the position of the second and the two are welded.
Target Weld remains active until you click the button again or right-click in the viewport.
Creates new edges between pairs of selected vertices.
Connect does not let the new edges cross. Thus, for example, if you select all four vertices of a four-sided polygon and then
click Connect, only two of the vertices will be connected. In this case, to connect all four vertices with new edges, use
Remove Isolated Vertices
Deletes all vertices that don't belong to any polygons.
Remove Unused Map Verts
Certain modeling operations can leave unused (isolated) map vertices that show up in the Unwrap UVW editor, but cannot be used for mapping. You can use this button to automatically delete these map vertices.
Depending on which radio button is chosen, selects all vertices whose vertex color or illumination values either match the
color swatch, or are within the range specified by the RGB spinners.
Specifies a range for the color match. All three RGB values in the vertex color or illumination must either match the color
specified by the color swatch in Select By Vertex Color, or be within plus or minus the values in the Range spinners. Default=10.