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Animates light streaks originating from a given luminance range in the original image.

Effect Parameters

Frame Margin
The margin available around the frame. It is useful to increase this value when the effect renders pixels outside the area of the input frame. This parameter is only available in Motion and After Effects, since variable-sized output frames are not supported by Final Cut Pro or Final Cut Express.

Presets
Presets contain a snapshot of the plug-in parameters. The Presets control lets you choose among one of the presets built into the plug-in, save current parameter values to a preset file, or load an existing preset file from disk.
A preset file saved to disk via the "Save As" button can be loaded from another instance of the same plug-in by clicking the "Open" button. Presets generated in one host can also be loaded from the same plug-in when used in a different host.

Source Value, Aperture and Softness
The effect is applied to a given range of pixels, based on their luminance value. Luminance values range from 0 (black) to 1 (white). The "Source Value", "Source Aperture" and "Source Softness" parameters give you precise controls to define this range:

The "Source Luminance" parameter specifies the center of the range of pixels. For example, a value of 0.5 means that the effect is applied to pixels that are 50% bright.

The "Source Aperture" parameter controls the width of this range. For example, a value of 0.5 with aperture of 0.2 means that all pixels between 40% and 60% brightness will be used as the source for the effect. An aperture value of 1.0 means that the effect is applied to the entire image.

It may be desirable to have a smooth transition between the pixels that are within the range and those that fall outside it. The "Source Softness" parameter defines the width of this smooth border. By adding soft borders to the range (one at the start, one at the end) you eliminate the sharp transition. A softness of 1.0 means that the range is smoothed over the entire image.

Angle
The angle of the light streaks

Width
The width of individual light streaks.

Length
The length of individual light streaks.

Density
The density of light streaks rendered over the original image. Light streaks originate from a given luminance range. This parameter determines how often light streaks should be generated, within that range.

Strength
The strength of the light streaks. More precisely, this parameter controls the brightness and opacity of the light streaks when combined with the original image.

Opacity
The opacity of the light streaks when combined with the original image.

Color
The color of the light streaks. The "Strength" and "Opacity" parameters may also influence the way this color is used to generate the light streaks.

Animation: Frames/sec
This parameter controls how fast the effect should transition from one set of light streaks to the next. A value of zero means that the set of light streaks does not change over time.

Animation: Seed
The "seed" value used to generate random values. The sequence of frames animated will be the same when using the same seed value.

High-precision Output
This parameter, available only inside Final Cut Pro, controls the color range of the final output. Although you will see no difference in the Canvas window (due to the fact that Final Cut Pro always previews in 8 bit color) high-precision clamping ensures that your output falls within a predictable range. This feature will often save you an extra post-processing step and come in handy when the only previewing device available is the built-in display.

Color Space
This parameter allows you to choose a working color space for the effect. When the “Linear” option is selected, the plug-in will convert all color values to a non-gamma-corrected format. When the “Uncorrected” option is selected, the color values supplied by the host will be used directly, without conversion. It may help to choose “Uncorrected” when dealing with smooth gradients or vector-art backgrounds, or if you have already applied gamma correction to your source media in a previous step of your workflow.