Apple Motion 4 - Manual (Page 1036)

Edge Work
This filter reduces an image to a high-contrast, grayscale version of itself. The detail in
this grayscale image can then be reduced and smoothed using various parameters to
create an image that resembles something hand-drawn. Depending on the amount of
smoothing you apply, many different effects are possible with this filter.
This filter causes rasterization in 3D groups.
Original image Edge Work applied
Parameters in the Inspector
Radius: Sets the radius of transition between light and dark areas.
Blur: Sets the amount the image should be blurred before edge detection.
Amount: Sets the amount of contrast between light and dark areas.
Smoothness: Sets the smoothness of the edge lining.
Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls
The HUD contains the following controls: Radius, Blur, Amount, and Smoothness.
Edges
An edge detection filter that examines the luminance of an image to derive the high
contrast borders between different regions of brightness. These edges are then traced,
and all other detail is replaced by black. The amount of eliminated detail depends on the
value of the Intensity parameter. The colors of the resulting highlights are intensified
variants of the colors from the original image.
1036 Chapter 16 Using Filters