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FFD (Free-Form Deformation) Select Modifier 689
FF D (Free-Form Def or mation)
Select Modifier
Select an FFD space warp. > Modify panel > M odifier List
> FFD Select
Select an FFD space warp. > Modifiers menu > Selection
Modifiers > FFD Select
The FFD Select mo difier works on an FFD (Box)
Space Warp (page 2–91) or FFD (Cyl) Space War p
(page 2–95) to change the selection of its control
points, and pass the selection up the stack.
The space-warp versions of the FFD modifiers
provide sub-object geometry that you can
manipulate in the stack. For example, you can
apply a Bend modifier (page 1–560) to an FFD
space warp, bend its control points, and thus bend
theobjecttowhichthespacewarpisbound.
Using the FFD Select modifier, you can select a
sub-object pattern of control points, and then use
the subsequent modifier(s) to deform the selected
points.
The FFD Select mo difier is especially useful for
assigning Linked XForm modifiers (page 1–712) to
portions of an FFD space war p.
Procedure
Example: To use the Link ed XFor m modifier with an
FFD space warp:
1.
Create an object, an FFD space warp (such
as FFD (Box) (page 2–91)), and a couple of
dummies (page 2–16).
2. Bind the FFD space war p to the object you want
to deform.
3. Select the FFD space warp and apply an FFD
Select modifier.
4. In the Control Points sub-object mode, select
the control points you want to use to affect the
object.
5. Apply a Linked XForm modifier, and then pick
one of the dummies as a control object.
6. Apply another FFD Select modifier, and select a
different collection of control points.
7. Apply another Linked XForm modifier and
assign the other dummy as a control object.
8. You can now move e ither of the dummy o bjec ts
to both translate the linked control points in
the FFD space warp, and to deform the target
object.
Interfa ce
AllX/AllY/AllZ—Select the control points
corresponding to the specified axis plane.
First click a select ion button, and then select FFD
control points in the viewports.
Fillet/Chamfer Modi fi er
Select a shape. > Modify panel > Modifier List >
Object-Space Modifiers > Fillet/Chamfer
Select a shape. > Modifiers menu > Patch/Spline editing
>Fillet/Chamfer
The Fillet/Chamfer modifier lets you fillet or
chamfer the corners between linear segments of
Shape objects (page 3–1011). Fillet rounds corners
where seg ments meet, adding new cont rol vertices.
Chamfer bevels corners, adding another vertex
andlinesegment.Notethatthismodifierworkson
the splines at the sub-object level of the shape. It
does not work between two or more independent
shape objects.
When you apply Fillet/Chamfer, you’re placed in
a Vertex sub-object selection level. You can select