The Projection modifier's
Selection rollout is for managing sub-object selections.
Click to turn on the
Cage sub-object level.
The Cage is the surface
from which normals are projected. At the Cage sub-object level,
you can adjust the cage manually by transforming sub-object selections
of cage vertices.
Click to turn on the
Face sub-object level.
The Face sub-object level
lets you assign different source geometry to different portions
of a surface.
Click to turn on the Element
The element sub-object
level lets you assign different source geometry to individual elements.
(An element is a group of contiguous faces.)
Reduces the sub-object selection
area by deselecting the outermost sub-objects. If the selection
size can no longer be reduced, the remaining sub-objects are deselected.
Expands the selection area
outward in all available directions.
With Shrink and Grow,
you can add or remove neighboring elements from the edges of your
current selection. Shrink and Grow work at any sub-object level.
- Ignore Backfacing
When on, selection of sub-objects
affects only those facing you. When off, you can select any sub-objects
under the mouse cursor, regardless of visibility or facing. If multiple
sub-objects lie under the cursor, repeated clicking cycles through
them. Likewise, with Ignore Backfacing off, region selection includes
all sub-objects, regardless of the direction they face. Default=off.
- Get Stack Selections
Click to collect sub-object
selections from modifiers that are below the Projection modifier
on the stack.
- Select SG
To select by smoothing group
value, use the spinner to set the number of the smoothing group,
and then click Select SG.
- Select MatID
To select by material
ID, use the spinner to set the ID number, and then click Select
- Sub-material drop-down
listWhen a multi/sub-object material is applied to the
low-res object, this list shows the names and numbers of sub-materials
that are assigned to faces or elements of the object. When you have
selected by material ID, the corresponding sub-material appears
in the field above the list.
- Clear Selection
When on, each stack, smoothing
group, or material ID selection you make replaces the previous selection.
When off, each new selection is added to the previous selection