8

Waveform Controller 367
To us e t he Waveform controller to a nimate the r adius
of a spher e:
1.
Create a sphere.
2. Open Track View — Dope Sheet, and expand
the Object (Sphere) t rack.
3. Select the Radius track, click Controller >
Assign, and choose Waveform Float from t he
Assign Controller dialog .
4. Playtheanimationtoseetheeffect.
Inter face
After assigning the Waveform controller, in Track
View, right-click its track to display its properties
in the Wa v eform Controller dialog.
List Window—Displays waveforms in a list.
Add—Adds a new waveform to the end of the list.
Thedefaultwaveformisasinewavewithaperiod
of 10 fr ames and with an amplitude of 100.
Insert—Inserts a new waveform before the selected
waveform slot.
Remove—Deletes the selected waveform. This is
not available when only one waveform remains.
Mov e Up a nd Move D own—Shifts the selected
waveformupanddowninthelist,allowingthe
waveform order to be altered.
Disable—Disables the selected waveform.
Waveform group
This group provides control parameters for the
currently selected waveform.
Tip: Using the Sphere example, you can obser ve t he
waveform in the Function Curve displays of the
Track View, and watch changes in the waveform
while testing the parameters described below.
Name—Cont ains the name of the waveform.
Waveform I co ns—Specifies five waveform types:
Sine,Square,Triangle,Sawtooth,andHalfSine.
Inver ted—Flips the waveform vertically.
Flipped—Flips the waveform hori zontally.
Per iod—Sets the number of frames to complete
one waveform pattern. Spinner Va lue=float, 0.01
to 9,999,999
Duty Cycle—For square waves only, specifies
thepercentageoftimethesquarewaveis"on."
Default=50, Spinner Value=float, 0 to 100
Amplitude—Sets the height of the wave. Spinner
Value=float, 0 to 9,999,999
Phase—Sets the offset of the wave. Spinner
Va lu e = f l o at , 0 to 1
Vertical Bias group
A waveform’s output value can be altered by
adjusting the Vertical Bias parameter. Spinner
Value=float, -9,999,999 to 9,999,999
Centered—Centersthewaveformsverticalbias
about zero. For example, a 100 unit amplitude
waveform would range f rom -100 to 100.
Auto > 0 —Shifts the w aveform above the zero line.
Auto < 0 —Shifts the w aveform below the zero line.
Manual—Lets you set the waveform manually by
adjusting the spinner.