8

Flex Modifier 691
Reference Frame—
Sets the first frame at which Flex
begins its simulation.
End Frame—When on, sets the last frame at which
Flex is to take effect. After this frame, the object
snaps back to its shape a s currently defined by the
stack. For instance, if you animate a Bend modifier
in the stack under Flex, then w hen Flex stops, the
object’s shape is altered only by the Bend modifier
settings as of that frame.
Affect All Points—Forces Flex to ignore any
sub-object selection in the stack and apply itself
totheentireobject.
Se t Re ference—Updates the viewports.
After moving the effect center, click Set Reference
to update the viewports.
Reset—Resets vertex weighting to the defaults.
Advanced Springs rollout
Use these settings w hen you need a more precise
springs setup than is provided by the Simple
Soft Body feature. Flex uses two types of spri ng:
edge springs ,whichcreatespringsonlyalong
existing edges, and
shape springs , which can exist
between any two vertices in the object that are not
connected by an edge. In general, add edge springs
along existing edges and shape springs between
vertices that don’t share an edge.
Note: Before using these controls, go to the Weights
& Springs sub-object level.
Note: Additional spri ng types are available using
MAXScript. See the MAXScript reference for
details.
Enable Advanced Springs—Makes the numeric
cont rols available for editing, and d isconnects the
Strength and Sway settings from the Simple Soft
Bodies controls. Default=off.
The four numeric Stretch and Sway sett ings in this
rollout are available only when Enable Advanced
Springs is on.
Add Spr i ng—Adds one or more springs to the
object based on t he vertex selection at the Weights
& Springs sub-object level and the
Spring Option
dialog (page 1–692)
settings.
Note: You cannot undo this action. To delete
existing springs, select the endpoints and click
Remove Spring.
Opti ons—Opens the Spring Option dialog (page
1–692)
for determining how springs are added
with the Add Spring function.
Remove Spring—Deletesanyspringsthathave
both ver t ices selected at the Weights & Springs
sub-object level.