Apple Motion 4 - Manual (Page 996)

Disc Warp
Stretches the image outward around a circular region. As the radius of the warping region
increases, the image is warped outward with a greater amount of distortion. The color
of the resulting disk is determined by the color value of the pixel where the center is
placed.
This filter causes rasterization in 3D groups.
Original image Disc Warp applied
Parameters in the Inspector
Center: Sets the position of the center of the disk.
Radius: Sets the size of the disk.
Crop: Sets whether the object is cropped at its original boundaries.
Mix: Sets the amount the original image to mix with the distorted image.
HUD Controls
The HUD contains the following control: Radius.
Displace
This filter uses an image to define a displacement region within the image, with parameters
to control the horizontal and vertical scale of displacement. You can use any image, movie,
or shape as the source image.
When this filter is initially applied, Displace behaves as if there were a black image applied
to the Map Image well, which does not displace the target.
To learn how to add an object to the Map Image well, see Source Well .
996 Chapter 16 Using Filters