8

564 Chapter 8: Modifiers
Selected Object Manip group
Set Initial State—Up dates the first frame of
the selected cloth object’s cache to the current
position.
Reset State—Resets the selected cloth object’s state
to the state before Cloth in the modifier stack.
When you click this, the simulation is erased; that
is, Simulated Frames returns to 1.
Delete Object Cache—Deletes the cache for selected
non-cloth objects. If an object is simulated as
cloth, and is then turned i nto a collision object (or
inactive) via the Object Properties dialog, it will
retain the cloth motion in its cache.
This is useful for simulating clothes in layers. For
example, you may simulate a character’s pants,
then tur n the p ants into a collision object for
simulating a coat. By simulating in layers, you
avoid the problems of cloth-to-cloth collision
detection. If you want to remove the cached
motion from the selected object(s), click this
button.
Grab State—Grabs the current state from the top
of the modifier stack and updates the cache for the
current f rame.
Followingisanexampleofhowthismightbeused:
1. Simulate to frame 100. When you play back the
simulation, you see a collision object poking
throughtheclothatframe24.
2. Add an Edit Mesh modifier after Cloth and pull
the cloth vertices so the object doe sn’t poke
through.
3. Go down the stack to Cloth and click Grab
State. The vertices are now moved twice
as far as you intended because the vertex
displacement was applied once by Cloth, and
again with Edit Mesh.
4. RemovetheEditMeshmodifier.Thevertices
should now be where you want them.
Gra b Target S ta te—Lets you specify the target shape
for
Keep Shape . Grabs the current deformation
from the top of the modifier stack and uses that
mesh to define the target bend angles between
triangles.
Note: Only the bend angles from the Target State
mesh are used, not the edge lengths.
Tip: To add some natural creasing to your cloth,
drop the cloth on the floor, click Grab Target State,
and then r un the simulation. After clicking Grab
Target State and before running the simula tion,
click Reset State (unless you want the cloth to stay
on the floor!).
ResetTargetState—Resets the default bend angles
tothemeshbelowClothinthestack.
Note: For Garment Maker (page 1–587) objects,
the target bend angles will depend on the output
method set in the Gar ment Maker modifier. To see
what is actually being used, use
Show Target State .