For each frame, finds the difference between the frame and a frame before it. On AE, this effect should be applied directly to a clip because any prior effects on the same clip will be ignored.

In the Sapphire Time effects submenu.


Source:  The current layer.   The clip to be processed.


Delay Frames:   Integer,  Default: 1,  Range: any.
The number of frames back to get the previous frame which is compared to the current frame.

Brightness:   Default: 1,  Range: 0 or greater.
Scales the brightness of the result.

Saturation:   Default: 1,  Range: 0 to 10.
Scales the color saturation. Increase for more intense colors. Set to 0 for monochrome.

Motion:   Popup menu,  Default: All.
Selects between different motion types to detect.
All:  shows all motion, both increasing and decreasing brightness levels.
Brighter:  shows only motion in which the brightness is increasing, for example the leading edge of an object moving over a darker background.
Darker:  shows only motion in which the brightness is decreasing, for example the trailing edge of an object moving over a darker background.

Input Opacity:   Popup menu,  Default: Normal.
Determines the method used for dealing with opacity/transparency.
All Opaque:  Use this option to render slightly faster when the input image is fully opaque with no transparency (alpha=1).
Normal:  Process opacity normally.
As Premult:  Process as if the image is already in premultiplied form (colors have been scaled by opacity). This option also renders slightly faster than Normal mode, but the results will also be in premultiplied form, which is sometimes less correct.

Output Opacity:   Popup menu,  Default: All Opaque.
Determines the opacity/transparency of the result. This effect does not process the opacity (alpha channel) of its input but it can either copy the opacity from the input, or output a fully opaque result.
All Opaque:  Makes the result fully opaque with no transparency.
Copy From Input:  Copies the opacity/transparency from the current layer given to this effect.

See Also:

Sapphire Plug-ins Introduction

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