Apple Final Cut Pro 6 - Manual (Page 1250)

Chapter 22 Using the SmoothCam Filter 465
II
Using the Auto Scale Parameter
In some cases, you may prefer to reduce the automatic scaling that the SmoothCam
filter applies by lowering the value of the Auto Scale parameter. For example, you may
want to reduce scaling if:
 You know your project will be shown only on overscan monitors, so you don’t care
what’s outside of the action safe area
 You’re going to composite this clip beneath other elements, so you plan to crop the
edges anyway
 You are applying the SmoothCam filter to HD footage within an SD sequence, so you
still have plenty of leftover pixels at the edges
By default, the Auto Scale parameter is set to 1, which means the SmoothCam filter
applies the minimum scaling necessary for the clip to appear without black edges in
the Canvas. Reducing the Auto Scale parameter to a value less than 1 reduces the
amount of scaling, revealing black around the edges of the clip.
Setting Clip In and Out Points
to Improve SmoothCam Rendering
The results of the SmoothCam filter are determined by the media between a clip’s In
and Out points, so abrupt visual changes in your clip’s media may cause poor
SmoothCam filter results. You can avoid abrupt visual changes in a clip by setting clip
In and Out points to a visually stable portion of media. An easy way to define a visually
stable portion of media is to cut a single clip into smaller clips and remove segments
with unwanted movement.
Note: The SmoothCam Analysis processing queue always analyzes your clip’s entire
media file (including subclips), regardless of the In and Out points set.
Here are some cases where adjusting clip In and Out points may improve your
SmoothCam results:
 If a large object moves across the frame of an otherwise stationary shot, such as a
person walking close to the front of the camera
 Excessive camera movement during shot setup
 Large camera movement in a clip that is otherwise relatively stationary
 Clips with more than one scene, such as clips with multiple takes