Binding and Adjusting Devices

After assigning a motion-capture controller, you next determine the type of device that will drive the motion. Depending on the type of controller, you might be able to bind one or more devices. 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.

You 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.

The properties dialog for rotation motion capture includes three binding buttonsone for each axis. In this example, you want to drive the Y rotation with the mouse.

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 wing segment that is not attached to the body, you want the horizontal mouse movement.

3. In the Mouse Input area, choose Horizontal.

The Scale spinner lets you adjust the relative effect of the mouse movement to the rotation. The Flip checkbox reverses the rotational direction with respect to the mouse movement.

You would next repeat the above steps for each wing segment. On the two segments linked to the bird’s body, you would specify Vertical instead of Horizontal mouse movement. You might also lower the Scale for these two segments so the wings don’t react to quickly to your mouse movement.