2009

All Vertices All vertices are deformed regardless of whether they lie inside or
outside the source volume, depending on the value in the Falloff spinner. The
deformation outside the volume is a continuous extrapolation of the
deformation inside the volume. The deformation can be extreme for points
far away from the source lattice.
Falloff This spinner, enabled only when you choose All Vertices, determines
the distance from the lattice that the FFD effect will decrease to zero. When
this spinner is set to 0, it's effectively turned off, and there is no falloff; that
is, all vertices are affected regardless of their distance from the lattice. The
units of the Falloff parameter are specified relative to the size of the lattice: A
falloff of 1 means that the effect will go to 0 for points that are a lattice
width/length/height away from the lattice (depending on which side they are
on).
Tension/Continuity Lets you adjust the tension and continuity of the
deformation splines. Although you can't see the splines in an FFD, the lattice
and control points represent the structure that controls the splines. As you
adjust the control points, you alter the splines (which move through each
point). The splines, in turn, deform the geometry of the object. By altering
the tension and continuity of the splines, you alter their effect on the object.
Selection group
These options provide additional methods of selecting the control points. You
can toggle the state of any combination of the three buttons to select in one,
two, or three dimensions at once.
All X, All Y, All Z When one of these buttons is on and you select a control
point, all control points along the local dimension specified by the button
are selected as well. By turning on two buttons, you can select all control
points in two dimensions.
About Displays a dialog with copyright and licensing information.
FFD(Cyl) Space Warp
Create panel > Space Warps > Geometric/Deformable > Object Type rollout >
FFD(Cyl)
Create menu > Space Warps > Geometric/Deformable > FFD(Cyl)
Free-form deformations (FFDs) provide a method of deforming an object by
adjusting the control points of a lattice. The offset position of the control
Geometric/Deformable | 2767