Apple Final Cut Pro 6 - Manual (Page 1248)

Chapter 22 Using the SmoothCam Filter 463
II
Camera Motion Smoothness Parameters
You can control the “steadiness” of your shot using three independent parameters:
 Translation Smooth: Left, right, up, and down movement of a shot (x and y axes)
 Rotation Smooth: Rotation around the center point of the image
 Scale Smooth: Forward or backward camera or lens movement (z axis)
Each parameter can be set to a value between 0.0 and 5.0. A value of 0.0 disables the
parameter, and a value of 5.0 applies the strongest possible transformation. The higher
you set each parameter, the more camera motion is compensated for in that axis.
For example, if you want to remove horizontal, vertical, and rotational movement, you
should set the Translation Smooth and Rotation Smooth parameters to a value above 0.
You may need to experiment to see which values steady your shot the best.
Correcting Black Borders Around Your Clip
When the SmoothCam filter compensates for camera movement, it translates, rotates,
or scales your clip in the opposite direction, potentially causing a black border around
the edge of the clip in the Canvas. To correct for the black border, the SmoothCam filter
determines which frame in your clip requires the most scaling to remove the black
borders and then automatically scales the entire clip by that amount.
x
Translation
y
x
Rotation
y
x
Scale
y
z
Black border
Black border