5.5

Table Of Contents
156Motion User Guide
Lighten: Emphasizes the lightest parts of each overlapping image. Every pixel in each
image is compared, and the lightest pixel from either image is preserved, so the final
image consists of a dithered combination of the lightest pixels from each image. Whites
in both images show through in the resulting image. The order of two layers affected by
the Lighten blend mode does not matter.
Screen: Like Lighten, Screen emphasizes the lightest parts of each overlapping image,
except that the midrange color values of both images are mixed together more evenly.
Blacks in either image allow the overlapping image to show through completely. Darker
midrange values underneath a specific threshold allow more of the overlapping image to
show. Whites from both images show through in the resulting image. The order of two
layers affected by the Screen blend mode does not matter.
The Screen blend mode is useful for knocking out the blacks behind a foreground
subject, instead of using a Luma Key. It’s mainly useful when you want the rest of the
foreground subject to be mixed with the background image, based on its brightness. It’s
good for glow and lighting effects and for simulating reflections. You can also use the
Add, Lighten, and Color Dodge blend modes to create variations of this effect.