8

Editable Mesh (Vertex) 993
3. If the vertices are very close together, go to
the Edit Geometry rollout > Weld group
and click Selected. If that doesn’t work (you
get a “No vertices within weld threshold.”
message), proceed to the next step.
4. Increase the numeric value to the right of
the Selected button.
This is the threshold value; the m inimum
distance that vertices can be apart from each
other to be welded.
5. Click Selected again.
At this point, one of three things happens:
None, some, or all of the vertices are welded.
Ifthelatter,you’redone. Ifeitherofthe
others occurs, proceed to the next step.
6. Continue increasing the threshold value and
clicking Selected until a ll of the vertices are
welded.
2. To u s e Ta r g e t We l d :
1. On the Selection rollout, turn on Ignore
Backfacing, if necessary. This ensures that
you’reweldingonlyverticesyoucansee.
2. Find two vertices you want to weld, a nd
determine the ultimate location of the
resulting vertex. You can weld any two
vertices, but for best results the two should
be contiguous; that is, they should be
connected by a single edge.
For this example, we’ll call the vertices A and
B, and the resulting vertex will be at vertex
B’s location.
3. Click the Target button.
The button stays highlighted, to indicate that
you ’re now in Target Weld mode.
4. Drag vertex A to Vertex B.
Whileyou’redragging,themousecursor
image is a four-headed, +-shaped arrow.
When over an eligible target vertex, the
cursor changes to a crosshairs.
Tip: If you have trouble dragging in the
proper direction, open the
Axis Constraints
toolbar (page 3–735)
and click the XY
button.
5. Releasethemousebutton.
The pair is welded. The resulting vertex
remains at vertex B’s position, and you exit
Tar g et We ld m o d e.
Tip: If you have trouble combining the two
ver tices, try increasing the Pixels value with
the spinner to the right of the Target button.
You remain in Target Weld mode, and can
continue to weld pairs of vertices.
6. Exit Target mo de by right-clicking in the
active viewport or clicking the Target button
again.
To select ver tices by color:
1.
On the Surface Properties rollout, click the
Existing Color swatch, and specif y the color of
vertex you want in the Color Selector.
2. Specif y ranges i n the RGB Range spinners.
This lets you select vert ices that are close to the
specified color, but don’t match exactly.
3. Click t he Select button.
All vertices matching the color, or within the
RGB range, are selected.
Yo u c a n a d d to t h e s e l e c t i o n by h o l d i n g C T R L
when you press the Select button, and you can
subtract from the selection by holding the ALT
key.
Tip: You 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.)