Adobe AFTER EFFECTS 7.0 Manual page 267

Difference
Hue
Luminosity
Silhouette Alpha
Luminescent Premul
Composites the layer on top of underlying layers.
Normal
Randomly replaces layer colors with colors from underlying layers, based on layer transparency. (The
Dissolve
Advanced 3D rendering plug-in doesn't support the Dissolve blending mode.)
Functions the same as Dissolve, except that the placement of random color changes varies over
Dancing Dissolve
time. (The Advanced 3D rendering plug-in doesn't support the Dancing Dissolve blending mode.)
Compares the channel values of the underlying and layer colors and displays the darker of the two. Speci-
Darken
fying this mode can cause color shifts in layers with color.
Multiplies the color values in the layers and divides the result by the maximum pixel value of either 8-bpc,
Multiply
16-bpc, or 32-bpc pixels depending on which mode you are in. The resulting color is never brighter than the original.
Looks at the color information in each layer and darkens the original layer color to reflect the under-
Linear Burn
lying color by decreasing the brightness. Pure white produces no change.
Looks at the color information in each layer and darkens the original layer color to reflect the underlying
Color Burn
layer color by increasing the contrast. Pure white in the original layer does not change the underlying color. This
mode is the same as the Color Burn blending mode in Photoshop.
Classic Difference
Saturation
Stencil Alpha
Silhouette Luma
Exclusion
Color
Stencil Luma
Alpha Add
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