System information
5.  Use the keyframe controller  at the bottom of the Track Motion window to establish distinct track 
motion  settings throughout the duration of the track.
During playback, intermediate  frames are interpolated to create smooth motion.
Expand the Keyframe  interpolation heading on the left side of the window and drag the  
Smoothness slider  to adjust the interpolation. 
Use the Default  Track Motion smoothness control on the External   Control & Automation tab of the 
Preferences dialog to set the  default Smoothness value for new keyframes.
Creating a shadow effect
The shadow effect creates a drop shadow under an object,  window, or title. A shadow is especially effective 
under a picture-in-picture  window.
This procedure assumes that you have already created an   event on the track above the background video 
to be used as an overlay.
1. 
Click the Track  Motion button    on the track where you want to add a shadow effect. The Track 
Motion window  is displayed.
2.  Select the 2D  Shadow row in the keyframe controller. When the 2D  Shadow row is selected, shadow 
controls are displayed in the Track  Motion dialog.
Select the 2D Shadow check box to apply  the shadow so you can see the results of your shadow in 
the Video  Preview window, or clear the check box to bypass the shadow.
3.  Use the 2D Shadow  controls on the left side of the window to set the color and appearance  of the 
shadow:
Item Description
Blur %
Type a number in the box or click the    button to display a slider 
you can use to soften the edge of the shadow.  Set to 0 for a hard 
edge, or increase the setting to feather the edge  of the shadow.
Intensity
Type a number in the box or click the    button to display a slider 
you can use to establish the transparency of  the shadow's blurred 
edge. Decrease the setting for a translucent shadow,  or increase the 
setting for a more opaque shadow.
Color Click the down arrow next to the color swatch  to display a color 
picker. Use the sliders or edit boxes in the color  picker to set the 
shadow color, or use the eyedropper tool    to sample a color from 
your screen.
288CHAPTER 12










