8

882 Chapter 8: Modifiers
Combine t his with Center Pixel Snap to snap to the
center of pixels rather than the corner.
Note: With multiple vertices selected, all vertices
snap to the nearest pixel, relatively; this can slightly
alter the spatial relationships among them.
Options panel
By default, the Options p anel, docked to the
bottom of the Edit UVWs dialog, provides
cont rols for using soft selection, specif ying
selection modes, and rotating the selection. The
Options button lets you toggle the display of
additional settings for bitmaps, viewports, and
the editor.
Soft Selection group
The Soft Selection controls make a sub-object
selection behave as if surrounded by a "mag netic
field." Unselected sub-objects within the field
are drawn along smoothly while you transform
the sub-object selection, the effect diminishing
with distance. You can adjust this distance, or
“falloff,” whether it applies to object space, texture
space, or edge space, and the formula by w hich it
diminishes.
First, set a value that encompasses sub-objects
to be moved or scaled, and then transform
sub-objects with a falloff effect.
On—Ac t ivates or deactivates soft select ion.
XY/UV —Specifies object or texture space for the
falloff distan ce. XY selects object space, UV selects
texture space.
Fa lloff—Sets the falloff distance. As values i ncrease,
unselected vertex colors change gradually fro m the
selected vertex to reflect the area of influence.
Edge Distance—Turn on to limit the falloff region
by the specified number of edges between the
selection and the affected vert ices. The affected
region is measured in terms of "edge-distance"
spaceratherthanabsolutedistance.
Fa lloff Type—Transforming with soft selection
affects non-selected ver tices within the falloff area
based on the falloff t ype.
The icons depict how their buttons affect falloff.
The options are:
•
Smooth
•
Linear
•
Slow Out
•
Fast Out
Selection Modes g rou p
[sub-obj ect mode]—Specifies the type of sub-object
that you can select by clicking or dr agging in the
window. Default=Vertex.
Oneofthethreesub-objectmodescanbeactive
at a time:
•
Ve r t e x
•
Edge
•
Face
Note: Selected sub-objects are colored red by
default. Also, in Edge and Face sub-object modes,
any shared edges are blue by defau lt. A shared
edge is one both of whose endpoints are shared
by a selected edge or face; thus, it is, in effect,
also selected. You can change t hese colors using
Customize User Interface > Colors panel (page
3–843)
.
The three sub-object levels are synchronized
between the
modifier stack (page 1–873) of the