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652 Chapter 8: Modifiers
Edit Poly ( Ver tex)
Selec t an Edit Poly object. > Modify p ane l > Selection
rollout > Vertex
Select an Edit Poly objec t. > M odify panel > Modify Stack
display > Expand Edit Poly. > Vertex
Select an Edit Poly object. > Quad menu > Tools 1
quadrant > Vertex
Verticesarepointsinspace: Theydefinethe
structure of other sub-objects that make up the
poly object. When vert ices are moved or edited,
the geometry they form is affected as well. Vertices
can also exist independently; such isolated ver tices
can be used to construct other geometry but are
otherwise invisible when rendering.
AttheEditPoly(Vertex)sub-objectlevel,youcan
select single and multiple vertices and move them
using standard methods. This topic covers the
Edit Vert ices and Edit Geometry rollouts; for other
controls, see Edit Poly Modifier (page 1–640).
Procedure
To weld polygon ver tices:
Yo u c a n u s e e i t h e r o f t w o m e t h o d s t o c o m b i n e
severalverticesintoone,alsoknownaswelding.If
theverticesareveryclosetogether,usetheWeld
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 sing le vertex that’s in the same
position as one of them, use Target Weld.
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 Vert ices dialo g ( page
1–1077).
5. IncreasetheWeldThresholdvaluegradually
using the spinner (click and hold on the
up-down arrow buttons to the right of the
numeric field and then drag upward). If you
need the value to change more quickly, hold
down the
Ctrl key as you drag.
When the threshold equals or exceeds
thedistancebetweentwoormoreofthe
vertices, the weld occurs automatically, and
the resulting vertex moves to their average
location.
6. If not al l the vert ices are welded, continue
increasing the Weld Threshold value until
they are.
7. Click OK to exit.
2. To u s e Target Weld:
1. On the Selection rollout, turn on Ignore
Backfacing, if necessary. T his ensures that
you’reweldingonlyverticesyoucansee.
2. Find two ver tices 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.