9

FFD(Cyl) Space Warp 97
Because All X is on, all control points for the
two rings will b e selected.)
5. On the status bar, click the Selection
Lock Toggle button to lock the selection. In
the Front viewport, drag the selec ted points
halfway down the height of the table.
6. Unlock the selection, and then region-select
any control point in the outer ring to select all
points in the outer r ing.
7. Lock the selection and, in the Front viewport,
drag the outer ri ng of p oints down to the floor.
You now have a truncated cone shape over the
table.
8. Unlock the selection. In the Top viewport,
again s elect all the control points in the two
outer r ings.
9. Scale the selected control poin ts in, un til the
radius of the inner ring of points is slightly
larger than the table top.
10. Select only the outer ring of points, and scale
them so their radius is slightly larger than the
inner ring.
If necessary, move the points, as seen f rom the
Front viewport, down to touch the floor again.
You now ha ve a lattice of control points draped
over the table.
In this next series of steps, you’ll bind the tablecloth
to the FFD lattice, and then animate it to move
over the table.
1. In the stack display, click the FFD(cyl) entr y
again to exit the sub-object level. It turns g ray.
2. In the main toolbar, click the Bind to
Space Warp button, and drag between the FFD
and the tablecloth.
3. Select the FFD lattice.
4. ChooseDeformgroup>AllVertices.
The tablecloth is immediately deformed
because all vertices are now affected, including
those outside the lattice volume, and Falloff
is set to 0. A falloff value of 0 means that the
distance of the vertices from the lattice doesn’t
matter. Any number greater than 0, however,
limits the effect.
5. Set the Falloff spinner to 0.4.
No longer influenced by the FFD space warp,
the tablecloth returns to its square shape.
6. Tur n on Auto Key, and go to frame 100.
7. In the Top viewport, s elect the tablecloth, and
move it until it’s centered over the table.
8. Asthetableclothnearsthetable,itdroops
down to the floor, sweeps up and over the table,
and final ly drapes itself over the table.