Apple Motion 5.1.1 - Manual (Page 340)

Chapter 9 Behaviors 340
MIDI
The MIDI behavior lets you edit and animate object parameters using standard MIDI devices,
such as a synthesizer. For the true motion graphics mixmaster.
Parameters in the Inspector
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Control Type: A pop-up menu that sets the mode of the MIDI controller. There are three modes:
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Note: Use this mode when the control is a keyboard key on the MIDI device.
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Controller: Use this mode when the control is a knob, dial, key, slider, or foot pedal on the
MIDI device.
•
Learning: Use this mode to “teach” Motion which control (such as a knob, dial, or key) you
want to use on the MIDI device to manipulate the parameter to which the MIDI behavior
is applied. When in Learning mode, the first knob, dial, or key that you adjust on the MIDI
device is set as the control.
Note: When the MIDI behavior is first applied, Learning is the default control type.
•
ID: A slider that displays the identification number of the MIDI control (such as a knob, dial, or
key) that you are manipulating.
•
Value: A slider that displays the standard MIDI value between 0 and 1 when you are
manipulating the MIDI control.
•
Scale: A slider that multiplies the Value parameter in the MIDI behavior. This means that when
Scale is increased, the MIDI control has a larger range of value and a greater effect on the
parameter it’s controlling. For example, when you use a knob to adjust an object’s rotation, the
default rotation value range (when Scale is set to 1) for a full turn of the knob might only be
30 percent. When the Scale value is increased to 13, the rotation value of a full turn of the knob
is increased to 370 degrees.
•
Apply To: A pop-up menu (parameter assignment control) that shows the parameter affected
and can be used to reassign the behavior to another parameter.
Add a MIDI behavior
You apply the MIDI behavior in the same way as all other Parameter behaviors. In the following
examples, the MIDI behavior is used to adjust an object’s opacity and rotation.
Note: This behavior can only be used if you have a MIDI device correctly connected to
your computer.
Use the MIDI behavior to adjust an object’s opacity
1 Select an object, then locate the Opacity parameter in the Properties Inspector.
2 Control-click the parameter, then choose MIDI from the shortcut menu.
The MIDI parameters are displayed in the Behaviors Inspector. By default, Control Type is set
to Learning.
Like all other Parameter behaviors, the Apply To field displays the parameter to which the
behavior is applied.
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