9

Edit U V Ws Dialog Menu Bar 897
Select Inverted Faces—
Selectsanyfacesfacingaway
from the current mapping. Available only in Face
selection mode.
This is useful in complex mo dels for finding faces
on a surface tha t folds in under itself, thus causing
potential problems with bump mapping.
For example, add a sphere, turn off Generate
Mapping Coords, and them apply Un wrap UVW.
This causes the modifier to apply planar mapping
from t he top dow n, so that all faces on the bottom
half of the sphere are “inverted”; that is, they face
away from the mapping. In the modifier stack
display, highlight the Select Face sub-object level,
andthenclicktheEditbuttontoopentheUVW
editor. Choose the Face selection mode, and then
choose Select > Select Inverted Faces. In the
viewports, the bottom half of the sphere turns red
to indicate that the inverted faces are now selected.
Select Overlapped Faces—Selects any faces that
overlap other faces. If no face is selected, this
selects all overlapping faces. If a face selection
exists, this selects only overlapping faces within the
selection. Available only in Face selection mode.
When working with complex meshes, it’s common
for texture-coordinate faces to overlap one
another, with the result that they use the same
portion of the texture map. Use this command to
find overlapping faces in order to separate them
as needed.
Tools menu
Toolsonthismenuletyouflipandmirrortexture
coordinates, weld vertices, combine and separate
sets of texture coordinates, and sketch outlines for
multiple selected vertices.
Flip Hor izont al/Ver tical—Detaches the selected
sub-objects along their boundary e dges and then
applies Mirror Horizontal or Vert ical, depending
on the mode.
Mirror Horizontal/Ver tical—Reverses the direction
of selected sub-objects along the indicat ed axis
and flips UVs accordingly.
Weld S elected—Welds selected sub-objects to a
single vertex, based on the Weld Threshold setting.
You can set the threshold on the Opt ions panel
> Unwrap Editor Options group, as well as on
the Unwrap Options dialog (page 1–920) >Misc.
Preferences group.
Target Weld—Welds pairs of vertices or edges. Not
available at the Face sub-object level.
Turn on Target Weld, and then dr ag one vertex
to another vertex, or one edge to another edge.
As you drag, the cursor changes in appearance to
cross hairs when it’s over a valid sub-object. While
this command is active, you can continue welding
sub-objects, and change the sub-object level. To
exit Target Weld mode, rig ht-click in the editor
window.
Break—Applies to the current s election; works
differently in the three sub-object modes. At
the Vertex sub-object level, Break replaces each
shared vertex with two vertices. With edges,
Break requires at least two contiguous edges to b e
selected, and separ ates each edge into two. With
faces, Break splits the selection off from the rest
of the mesh into a new element, exactly as does
Detach Edge Verts.
Detach Edge Ver ts—Tries to split off t he cur rent
selection into a new element. Any invalid vertices
or edges are removed from the selection set before
the detach.
Stitch Selected—For the current selection, finds all
the texture vert ices that are assigned to the same
geometric vertex, brings them a l l to the same spot,
and welds them together. With this tool you can
automatically connect faces that are contiguous in
theobjectmeshbutnotintheeditor.
To use Stitch Selected, first select sub-objects
along an edge you want to connect (by default, this