8

Motion Capture Utility 633
A Motion Capture dialog is displayed. Its t itle
bar includes t he name of the object and the
track to which the controller is assigned.
If a Data dialog opens instead, close it,
right-clickthetrackname,andchoose
Properties.
When you assign a Motion Capture controller,
the previously assigned controller is maintained
asachildoftheMotionCapturecontroller.
This lets you continue to adjust the object using
standard transform controls, while still making
motion-capture control available.
To bind a nd a djus t dev ices:
1.
After assig ning a Motion Capture cont roller,
determinethetypeofdevicethatwilldrivethe
motion.
Depending on the t ype of controller, you
mightbeabletobindoneormoredevices.For
example, a Rotation Motion Capture controller
can have three devices, one for each axis of
rotation. On the other hand, a controller for the
radius of a cylinder would have only one device
to control the radius value.
2. Bind the devices in the Properties dialog for
the track.
To specify a device:
1.
Click the Properties button while the Rotation
track is selected.
ThePropertiesdialogforrotationmotion
capture includes three binding buttons (one for
each axis.)
2. Click the Y Rotation button. In the resulting
dialog, choose Mouse Input Device, and click
OK.
The lower half of the Properties dialog display
controls specific to the new device. Assuming
this is a segment that isn’t attached to a nother
object, you want the horizontal mouse
movement.
3. Under Mouse Input, choose Horizontal.
The Scale spinner lets you adjust the relative
effect of the mouse movement to the rotation.
Flip reverses the rotational direction with
respect to the mouse movement.
Example: To set up the Joystick controller to move
a Free camera:
You set up the Joystick controller to move a Free
Camera around on the XY plane. The Y movement
of the joystick will affect the camera’s forward
and backward movement, and the X movement
ofthejoystickwillrotatethecamera. You’lluse
Increment Based On Direction to allow the Y
movement to be local to the camera rather than to
the world.
1. Create a Free camera in the Front viewpor t.
2. In Track View, assign a Rotation Motion
Capture controller to the Rotation track of the
camera.