GlowOrthiconComp In the S_GlowsComp Plugin. The background clip is darkened at areas around parts of the source clip that are brighter than the given threshold, to give an 'orthicon' or 'dark glow' look. This is similar to GlowOrthicon, but here the source and background can be different clips. Inputs: Front:  The clip to use as foreground. Back:  The clip to combine the glows with. Matte:  Specifies the opacities of the Front clip. These values are scaled by the Source Opacity parameter before being used.

Parameters:

Darks Width:   Default: 0.2,  Range: 0 or greater.
Scales the dark glow distance. This and all the width parameters can be adjusted using the Width Widget.

Protect Width:   Default: 0.1,  Range: 0 or greater.
The distance around the bright areas that is protected from darkening. This should normally be less than the value of Darks Width.

Protect Amount:   Default: 1,  Range: 0 or greater.
The amount that the bright areas are protected from darkening.

Width X:   Default: 1,  Range: 0 or greater.
Scales the horizontal glow width. Set to 0 for vertical only.

Width Y:   Default: 1,  Range: 0 or greater.
Scales the vertical glow width. Set to 0 for horizontal only.

Subpixel:   Check-box,  Default: off.
Enables glowing by subpixel widths. Use this for smoother animation of the Width parameters.

Darkness:   Default: 1,  Range: 0 or greater.
Scales the amount of darkening.

Color:   Default rgb: [0 0 0].
Scales the color of the glows. The colors and brightnesses of the glows are also affected by the Source input.

Threshold Add Color:   Default rgb: [0 0 0].
This can be used to raise the threshold on a specific color and thereby reduce the glows generated on areas of the source clip containing that color.

Threshold:   Default: 0.7,  Range: 0 or greater.
Darkening will occur around locations in the source clip that are brighter than this value. A value of 0.9 causes dark glows from only the brightest spots. A value of 0 causes glows for every non-black area.

Source Opacity:   Default: 1,  Range: 0 to 1,  Shared.
Scales the opacity of the Source input when combined with the glows. This does not affect the generation of the glows themselves.

Scale Back:   Default: 1,  Range: 0 to 1,  Shared.
Scales the brightness of the background. This parameter only has an effect if the background input is provided, and is visible due to a partially transparent Source image or a reduced Source Opacity parameter value.

Params2:

Glow Under Src:   Default: 0,  Range: 0 to 1,  Shared.
Set to 1 to composite the Source input over the glows.

Glow From Matte:   Default: 0,  Range: 0 to 1,  Shared.
Set to 1 to generate glows from the alpha channel of the source input instead of the RGB channels. In this case the glows will not pick up color from the source and will typically be brighter. Values between 0 and 1 interpolate between using the RGB and the Alpha.

Comp Premult:   Check-box,  Default: off,  Shared.
Enable this for a better composite if the Front pixel values have been pre-multiplied by the Matte pixel values. This is also known as an 'additive' composite.

Show:   Popup menu,  Default: Result.
Selects the type of output

Result:  Shows the final result of combining the glow, source, and background.

Threshold:  Shows the thresholded image that is used to generate the glow.

See Also:

GlowComp GlowDistComp GlowRainbowComp GlowAuraComp GlowRingsComp GlowDarksComp GlowEdgesComp GlowNoiseComp

GlowOrthicon GlowOrthiconMask GlowOrthiconMaskComp

Glint Sapphire Plug-ins Introduction

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