Apple Motion 5.1.1 - Manual (Page 235)

Chapter 7 Basic compositing 235
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Darken: Emphasizes the darkest parts of each overlapping image. Whites in either image allow
the overlapping image to show through completely. Lighter midrange color values become
increasingly translucent in favor of the overlapping image, while darker midrange color values
below that threshold remain solid, retaining more detail. The order of two layers affected by
the Darken blend mode does not matter.
The Darken blend mode is useful for using one image to texturize another selectively, based
on its darker areas. You can also use Screen, Color Burn, and Linear Burn for variations on
this effect.
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Multiply: Like Darken, Multiply emphasizes the darkest parts of each overlapping image, except
that midrange color values from both images are mixed together more evenly. Progressively
lighter regions of overlapping images become increasingly translucent, allowing whichever
image is darker to show through. Whites in either image allow the overlapping image to show
through completely. Blacks from both images are preserved in the resulting image. The order
of layers affected by the Multiply blend mode does not matter.
The Multiply blend mode is useful in situations where you want to knock out the white areas
of a foreground image and blend the rest of the image with the colors in the background. For
example, if you superimpose a scanned sheet of handwritten text over a background image
using the Multiply blend mode, the resulting image becomes textured with the darker parts of
the foreground.
67% resize factor