9

1030 Chapter 9: Surface Modeling
1.
To u s e Weld :
1. On the Selection rollout, turn on Ignore
Backfacing, if necessary. This ensures that
you’reweldingonlyverticesyoucansee.
2. Select the vertices to weld.
3. If the vertices are very close together, simply
click Weld. If that doesn’t work, proceed to
the next step.
4.
Click the Settings button to the right of
the Weld button.
This opens the Weld Ver tices dialog (page
1–1077).
5. Increase the Weld Threshold value gradually
using the spinner (click and hold on the
up-down a rrow buttons to the r ight of the
numeric field and then drag upward). If you
need the value to change more quickly, hold
down the
Ct rl key as you drag.
When the threshold equals or exceeds
the distance between two or more of the
vertices, the weld occurs automatically, and
the resulting vertex moves to their average
location.
6. If not all the vertices are welded, continue
increasing the Weld Threshold value until
they are.
7. Click OK to exit.
2. To u s e Ta r g e t We ld :
1. On the Selection rollout, turn on Ignore
Backfacing, if necessary. This ensures that
you’reweldingonlyverticesyoucansee.
2. Find two vertices you want to weld, and
determine the ultimate location of the
resulting vertex. The two vertices must be
cont iguous; that is, they must b e connected
by a single edge.
For this example, we’ll call the vert ices A and
B, and the resulting vertex will be at vertex
B’s location.
3. Click the Target Weld button.
The button stays highlighted, to indicate that
you’re now in Target Weld mode.
4. Click vertex A and then move the mouse.
A rubber-band line connects the vertex and
the mouse cursor.
5. Position the cursor over vertex B, whereupon
the cursor image changes from an arrow
to a crosshairs. Reminder: Only vertices
connected to the first vertex by a single edge
qualify for target welding.
6. Click to weld the two.
The resulti ng vertex remains at vertex B’s
position, a nd you exit Target Weld mode.
To select ver tices by color:
1.
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
(page 1–161).
2. Specif y ranges in the RGB Range spinners.
This lets you select vertices that are close to the
specified color, but don’t match exactly.
3. Click the Select button.
All vertices matching the color, or within the
RGB range, are selected.
You can add to the selection by holding
Ct rl as
youclicktheSelectbutton,andsubtractfrom
the selection by holding the
Alt key .
Tip: You can select a l l vertices of the same color
by first select ing 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.)