Adobe After Effects CS4 - Manual (Page 180)

174 USING AFTER EFFECTS CS4
Layers and properties
Last updated 12/21/2009
Blending mode descriptions
In the following descriptions, these terms are used:
• The source color is the color of the layer or paint stroke to which the blending mode is applied.
• The underlying color is the color of the composited layers below the source layer or paint stroke in the layer stacking
order in the Timeline panel.
• The result color is the output of the blending operation; the color of the composite.
Normal The result color is the source color. This mode ignores the underlying color. Normal is the default mode.
Dissolve The result color for each pixel is either the source color or the underlying color. The probability that the result
color is the source color depends on the opacity of the source. If opacity of the source is 100%, then the result color is
the source color. If opacity of the source is 0%, then the result color is the underlying color. Dissolve and Dancing
Dissolve do not work on 3D layers.
Dancing Dissolve Same as Dissolve, except that the probability function is recalculated for each frame, so the result
varies over time.
Darken Each result color channel value is the lower (darker) of the source color channel value and the corresponding
underlying color channel value.
Pin Light Hard Mix Difference
Classic Difference Exclusion Hue
Saturation Color Luminosity
Stencil Alpha Stencil Luma Silhouette Alpha
Silhouette Luma Alpha Add Luminescent Premul