Apple Motion 4 - Manual (Page 1007)

Ring Lens
This filter creates a ring of distortion over the image. The result can be a donut-like bulge
in the image. This filter causes rasterization in 3D groups.
Original image Ring Lens applied
Parameters in the Inspector
Center: Sets the position of the center of the lens.
Radius: Sets the radius of the ring.
Thickness: Sets the thickness of the ring as a percentage of the radius. Values range from
0 (no thickness) to 1.00 (no hole in the center of the ring lens).
Refraction: Sets the amount of refraction of the lens.
Crop: Sets whether the object is cropped at its original boundaries.
Mix: Sets what percentage of the original image is blended with the distorted image.
HUD Controls
The HUD contains the following controls: Radius, Thickness, and Refraction.
Ring Warp (Obsolete After Motion 3.0.2)
The Ring Warp filter is not included in the latest Motion release. The filter will appear
when you load older projects (Motion 3.0.2 and earlier).
The effect is similar to that of the Ring Lens, but the image is distorted with multiple
concentric rings. The number of rings can be increased or decreased using the Radius
and Refraction parameters.
1007 Chapter 16 Using Filters