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Part III: Modeling Basics
FIGURE 13.7
The Preserve UVs option lets you make subobject changes after texture maps have been applied.
Create
The Create button lets you create new subobjects, specifically polygons, by connecting isolated vertices and
border vertices. When the cursor is over a valid vertex, it changes to a crosshair, and you can click to create
a polygon edge from the last clicked point. If no vertices are available, you can Shift-click to create one.
This creates a vertex where you click. Be aware that creating a vertex doesn’t add it to any of the edges, but
the Create button in Edge subobject mode can connect edges to these isolated vertices.
Tip
As you create new polygons, the normal is determined by the direction in which you create the polygon using the
right-hand rule. If you bend the fingers of your right hand in the direction (clockwise or counterclockwise) that
the vertices are clicked, then your thumb will point in the direction of the normal. If the normal is pointing away
from you, then the backside of the polygon will be visible and the lighting could be off. n
You can use the Create button to create new polygons based on new or existing vertices. To create a new
face, click the Create button, which highlights all vertices in the selected mesh. Next, click a vertex to start
the polygon; after you click two more vertices, a new face is created. You can also create a new vertex not
based on any existing vertices by holding down the Shift key while clicking.
Polygons aren’t limited to three vertices. You can click as many times as you want to add additional vertices
to the polygon. Click the first vertex, or double-click to complete the polygon.
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