Apple Motion 4 - Manual (Page 1015)

Aura
This is a highly stylized filter that adds light or dark halos around well-defined areas of
an image. The resulting glow appears solarized, and the underlying image creates outlines
that show through the glow effect.
Original image Aura applied
Parameters in the Inspector
Inner Radius: Sets the amount the aura extends inward from its point of origin.
Outer Radius: Sets the amount the aura extends outward from its point of origin.
Brightness: Sets the brightness of the aura.
Crop: Sets whether or not the aura is cropped at the original boundaries of the object.
Mix: Sets what percentage of the original image is blended with the filtered image.
HUD Controls
The HUD contains the following controls: Inner Radius, Outer Radius, and Brightness.
1015 Chapter 16 Using Filters