User Manual

Apply Mode and Operator Menus
This menu provides a variety of options that determine how the two layers should be combined.
The options in this menu are identical to those found in the Merge node.
 Apply Modes: The Apply Mode setting determines the math used when blending or
combining the foreground and background pixels.
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Normal: The Default merge mode uses the foreground’s Alpha channel as a mask
to determine which pixels are transparent and which are not. When this is active,
another menu shows possible operations, including Over, In, Held Out, Atop, and XOr.
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Screen: Screen merges the images based on a multiplication of their color values.
The Alpha channel is ignored, and layer order becomes irrelevant. The resulting
color is always lighter. Screening with black leaves the color unchanged, whereas
screening with white will always produce white. This effect creates a similar look to
projecting several film frames onto the same surface. When this is active, another
menu shows possible operations, including Over, In, Held Out, Atop, and XOr.
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Dissolve: Dissolve mixes two image sequences together. It uses a calculated
average of the two images to perform the mixture.
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Multiply: Multiplies the values of a color channel. This will give the appearance of
darkening the image as the values are scaled from 0 to 1. White has a value of 1,
so the result would be the same. Gray has a value of 0.5, so the result would be a
darker image or, in other words, an image half as bright.
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Overlay: Overlay multiplies or screens the color values of the foreground image,
depending on the color values of the background image. Patterns or colors overlay
the existing pixels while preserving the highlights and shadows of the color values
of the background image. The background image is not replaced but is mixed
with the foreground image to reflect the original lightness or darkness of the
background image.
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Soft Light: Soft Light darkens or lightens the foreground image, depending on the
color values of the background image. The effect is similar to shining a diffused
spotlight on the image.
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Hard Light: Hard Light multiplies or screens the color values of the foreground
image, depending on the color values of the background image. The effect is similar
to shining a harsh spotlight on the image.
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Color Dodge: Color Dodge uses the foreground’s color values to brighten the
background image. This is similar to the photographic practice of dodging by
reducing the exposure of an area of a print.
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Color Burn: Color Burn uses the foreground’s color values to darken the background
image. This is similar to the photographic practice of burning by increasing the
exposure of an area of a print.
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Darken: Darken looks at the color information in each channel and selects the
background or foreground image’s color value, whichever is darker, as the result
color. Pixels lighter than the merged colors are replaced, and pixels darker than the
merged color do not change.
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Lighten: Lighten looks at the color information in each channel and selects the
background or foreground image’s color values, whichever is lighter, as the result
color value. Pixels darker than the merged color are replaced, and pixels lighter than
the merged color do not change.
Chapter – 107 Tracker Nodes 2399