Apple Motion 2 - Manual (Page 264)

264 Chapter 3 Basic Compositing
Pin Light
Pin Light is similar to the Hard Light blend mode, except that overlapping midrange
color values are mixed together differently based on their color value. Whites and
blacks in the foreground image block the background image. Whites and blacks in the
background image, on the other hand, interact with overlapping midrange color values
in the foreground image.
The methods used by the Pin Light blend mode to mix two images are somewhat
complex. Overlapping midrange color values are treated differently depending on
which of the four regions of the luminance chart they fall into.
• Lighter and darker areas of the foreground image falling close to the whites and
blacks are preserved.
• Areas of the foreground image falling near the center of the midrange are tinted by
the background color.
• Darker areas of the foreground image in between the blacks and center of the
midrange are lightened.
• Lighter areas of the foreground image in between the whites and the center of the
midrange are darkened.
The end result may appear alternately tinted or solarized, depending on the lightness
or darkness of the overlapping values. This blend mode lends itself to more abstract
effects.
The order of two objects affected by the Pin Light blend mode is important.
Boxes object on top Monkey object on top
01112.book Page 264 Sunday, March 13, 2005 10:36 PM