9

Object Properties D ialog (Cloth) 605
stretched sides is not on a one to one basis. One
side of the polygon may stretch more then another
as long as the
Seam Force—Not presently used and
only kept for backward compatibility with older
versions of the former product, called Stitch. This
was a global seam strength, but seam strength is
now defined on a seam-by-seam basis at the Seams
sub-object level.total shear value is not exceeded.
Density — The weight of the cloth per unit area (in
gm/cm2). Higher values mean heavier cloth like
denim. Use smaller values for lig hter cloth like sil k.
Dampi ng— The larger this value, is the more
sluggishlythefabricwillreact.Withalowervalue,
thefabricwillbehavewithmorespring. Cloth
with more damping will come to rest sooner then
clothwithlessdamping.Highdampingresultsin
cloth that behaves as though it is moving through
oil. Excessive damping may also cause simulat ion
instabilities. A good value is 0.01 (note: the default
is 0.1, but in practice, it seems that this value is
too high).
UScale—Controls how much to shrink or expand
the cloth along the U direction (as defined by
Garment Maker). For non-Garment Maker
meshes, this applies a uniform scaling to the cloth
along both axes, and the V Scale parameter is
ignored). A value of less than 1 will shrink the
fabric at simulation time, while a val ue of more
than 1 will stretch it.
VScale—C ontrols how much to shrink or expand
the cloth along the V direction (as defined by
Garment Maker). A va lue of less than 1.0 will
shrink the fabric at simulation time, while a value
of more than 1.0 will stretch it.
Plasticity—The tendency of t he cloth to keep its
current deformation (that is, the bend ang les).
This is different from Keep Shape,which
determinestheextenttowhichtheclothtendsto
keep its original deformation (or the one defined
by the Target State). If you set Plasticity to 100.0,
the cloth will not attempt to change the angles
between triangles. If you want st iffer cloth, but you
don’twanttheclothto"balloon"up,increasethe
Plasticity value.
Depth—Collision depth for the cloth object. If
a portion of cloth reaches this depth inside a
collision object, then the simulation will no longer
trytopushtheclothoutofthemesh.Thisvalueis
measured in 3ds Max units.
To specify a Depth value specific to the cloth
object, use this setting a nd be sure to turn on Use
Cloth Depth/Offset.
Offset—The distance maintained between the
cloth object and the collision object. A very low
value can cause the collision mesh to protrude
from under the cloth. A very high value c auses the
fabric to appear to be floating abov e the collision
object. This value is measured in 3ds Max units.
To specify an Offset value specific to the cloth
object, use this setting a nd be sure to turn on Use
Cloth Depth/Offset.
Cling —Theextenttowhichtheclothobjectadheres
to a collision object. Range=0.0 to 99999.0.
Default=0.0.
You can use t his parameter to simulate effects such
as wet cloth. A setting of 1.0 should be just enough
to hold the default material onto a surface against
its own weight.
Use Cloth Dept h/Off set —Uses the Depth and Offset
values set in Cloth Properties. When on, the cloth
object ignores the collision object Depth and
Offset va lues.
Based on—DisplaysthepresetthattheCloth
Proper ties are based on. When you modify some
parameters and save a preset, it will use the name
ofthelastpresetyouloadedastheBased on name.
Anisotropic—When on, you can set different U
andVvaluesfortheBend,B-Curve,andStretch
parameters. The U and V directions are defined