Under

Function
This function is exactly like the Over command, except that it reverses the two input images. This is largely trivial for the script and the interface, but is extremely handy when working in the command-line mode, since you can therefore easily work on a background image.

Parameters
Type
Defaults
Function
clipMode
int
1 Toggles between foreground (0) and background resolution (1)
preMultiply
int
0 When this is on (1), the foreground image is multiplied by its alpha mask. If it is off (0), it is assumed the foreground image is pre-multiplied.
addMattes
int
0 When this is toggled on (1), the mattes are added together for the composite.


Synopsis

image Under( 
   image Background, 
   image Foreground, 
   int clipMode, 
   int preMultiply,
   int addMattes

);


Script

image = Under( 
  Background, 
  Foreground, 
  clipMode, 
  preMultiply, 
  addMattes 
);


Command Line

shake -under image clipMode preMult

See Also
Over, Screen, Inside, Atop