8

Parameter Wiring Dialog 397
Note:
If you open the Parameter Wiring dialog by
wiring two parameters, the tree views will initially
only display the selected objects, highlighting
the parameters that were selected in the pop-up
menusduringthewiringprocedure.Ifyouwant
to expand the t rees, to include all other animatable
parameters in the scene, click Up To World.
Therearetwobuttonsabovethetreeviews:
Show All Track s—Brings you to the top of the
scene object list.
Fin d N e xt Pa rame te r—Finds the next wired
parameter in the scene, expanding the tree if
necessary to show and select it. You can browse
through all existing wires by successively pressing
this button.
Note: If you select a wired parameter, its
connect ions are shown in green on the other Tree
View. While the wired p arameter is selected, the
Show Next Wire button on the other tree wil l cycle
through the green connections only, so y ou can
quickly find the selected wire’s connections.
Co ntrol Direction—The Parameter Wiring dialog
provides three direction-control buttons between
thetreeviews.Youcanchooseonlyoneoftheseat
a time. These buttons determine the direction of
control, either one-way or two-way:
•
Two-way connection [two-headed
arrow]—
Click this to lin k b oth parameters to
each other, so that changing either parameter
affects the other.
•
One-way connection: r ight parameter
controls lef t parameter [left arrow]—
The right
parameter controls the left parameter.
•
One-way connection: left pa ra meter
controls right parameter [right arrow]—
The left
parameter controls the rig ht p ar ameter.
Note: You can change the direction of a wire at any
time by clicking the desired direction button and
then clicking Connect or Update.
Connect /Update—The
Connect/Update button changes its label
depending on whether clicking it would add
a new wire to previously unwi red parameters
(Connect) or change an existing wire’s expressions
or direction (Update). Changes to existing w ires
are only applied when you click Update.
Disconnect —The Disconnect
button is enabled when you’ve selected p arameters
w ith an existing wire between them. It will remove
the wire controller(s) and replace them with the
Master parameter’s animation track (if two-way)
or with default controllers (if one-way).
Master parameters
The Parameter Wire system provides a way for the
pairofwiredparameterstobeanimatedasasingle
system. It do es this by setting up a subcontroller
on one of the parameters; any animation on this
controller drives the Wire Controller pair. The
animation subcontroller is always assigned to the
master parameter of the wired pair. By default, this
is the parameter that is clicked first in the wiring
interaction. The master parameter can also be
designated with the Master radio buttons beneath
thetreeviews.
The animation subcontroller appears as a nested
track inside the master parameter’s track in Track
View and its va lues directly drive and m atch the
master parameter values. If the subcontroller is
keyframable (which is the default when a two-way
wiring is first established) it ca n be keyframed by
adjustments of
either of the wired parameters.
This means that if you keyframe the wired pair by
adjusting the non-master parameter, the values
keyframed into the animation subcontroller
are der ived from the master p arameter t ransfer