8

Reaction Manager Dialog 349
the graph. Each has its own toolbar or toolbars.
Each list contains rows and columns; the column
headings employ standard Windows f u nc tionality.
To resize a column, drag the divider to the rig ht of
its heading, or auto-size a column to fit its widest
entrybydouble-clickingtheright-sideheading
divider.Tochangetheverticalsizeofalistsection,
drag the horizontal divider at the bottom of the
list, and to scale all three sec tions proport ionally,
drag the bottom of the dialog. You can also resize
the dialog by dragging a corner or a side.
You c an use standard methods to high light list
items for further ac tions. Highlig ht a single item by
clicking it. Highlight multiple consecutive items by
clickingthefirstitemandthenSHIFT+clickingthe
last. Use CTRL+click to highlight non-contiguous
items and to toggle highlighting of a single item.
In most cases, if a cell in the Reactions list or the
States list contains a single numeric va lue, you can
change the value by dragging vertical ly on the cell.
Click and hold on the number in the cell, and then
move t he mouse upward to increase the va lue or
downward to decrease it. The exception to this
are the Start and End values for master objects;
you can change these values only by modifying a
slave’s Start or End value. You can also modify
a one-value field by double-clicking it and then
editing it with the k eyboard. If a field contains
multiple numeric values, you must manipulate the
object directly in the v iewports or the appropriate
dialog.
The dialog also has a
right-click menu (page
2–352)
for m anaging reactions and states, available
by right-clicking anywhere on the dialog except in
the graph section.
Note: A master is an object that you can use to
control other objects via Reaction con trollers, and
a
slave is an object cont rolled by a master.
React ion s list
The Reactions list displays a hierarchical view
of the master-slave relationships of objects with
Reaction controllers in the scene. You can use
its controls to add and delete masters and slaves,
change start and end frames, and toggle usage of
thegraphcurve.Thesecontrolsareavailableboth
on the toolbar above the list and in the list itself.
Add Ma ster—Places you in Add Master mode.
Clickanobjectinaviewport,andthenusethe
pop-up menu to choose an animation t rack to
use as master . Alternatively, choose a track in
Track View or from the Motion panel > Assig n
Controller rollout list.
Using the pop-up menu, you can choose only
a track at the end of the menu hierarchy; for
example, Transform > Position > X P osition. If
you choose the object name from the top of the
menu, Reaction Manager lists it as World Space
P osition, so that you can use its three-dimensional
position in the World coordinate system to con trol
its slaves.
To use a Position or R otation track f or the master,
click Add Master and then click the track in Track
View or the Motion panel > Assign Controller
rollout list. In the latter case, the object must
already be selected in the view ports before clicking
Add Master in order for it to show up on the
Assign Controller rollout list. If using Track View ,
you can open the Track View dialog before or after
clicking Add Master.
Tip: If you use Track View or Motion panel to
assignaReactioncontrollertoananimationtrack,
the object shows up in Reaction Manager without
a m aster (“Unassigned”). To assign a m aster,