Using the Mix Parameter
FxPlug effects in Motion and Final Cut Pro display a parameter called Mix that allows
you to blend the video image with and without the filter applied. When Mix has a value
of 100 percent, only the affected image is displayed. When the value is 0 percent, the
image appears as it would without the effect. Values between 0 percent and 100
percent blend the unaffected and affected image. You can use the Mix parameter to
apply a filter in a more subtle way, or you can set Mix parameter keyframes to fade an
effect in or out.