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938 Chapter 8: Modifiers
Parameters rollout Stack Selecti on Leve l group
Object/Ver tex /Fa ce—Vo lu m e S e l e c t p ro v i d e s t h r e e
selection levels. Vertex and Face levels put the
modifier stack in sub-object selection. You can
make one sub-object selection for each Volume
Selectmodifier. Youcanthentoggletheone
selection between Face and Vertex level to send
either up the stack. Object (top) level lets you
modify the whole object while retaining any
sub-object selection.
Selec tion Method group
Replace—Clears any select ion passed up the stack
to the Volume S elect modifier, and then selects
geometr y within the volume.
Add—Selects all geometr y within the volume,
adding to any previous selection.
Subtract—Deselects all geometry w ithin the
volume.
Inver t—Reversestheentireselectionset.Geometry
that was unselected becomes selected, and vice
versa.
Selection Type group
Lets you determine whether selected faces are
wholly or partially within the defined volume
when you set Stack Selection Level to Face.
Window—Selects only faces with al l t hree vert ices
within the selection volume.
Cr o s si n g —Selects faces with only one vertex within
the selection volume.
Select By group
These controls let you define the selection
with a primitive, a mesh object, or by surface
characteristics.
Volume: B ox/S phere/Cy linder—To d e fi n e the
selection space using a standard primitive-shaped
gizmo, cho ose one of these. You c an then scale,