GlintMaskComp In the S_GlintMaskCmp Plugin. Generates star shaped glints at locations where the Source clip is brighter than the threshold. The colors of the glints are scaled by a Mask input, and then combined with the Back input clip. This is similar to Glint, but here a Mask input is provided, and also the glint source and background can be different clips. Inputs: Front:  The clip to use as foreground. Back:  The clip to combine the glints with. Matte:  Specifies the opacities of the Front clip. These values are scaled by the Source Opacity parameter before being used. Mask:  The source glint colors are scaled by this input. A monochrome Mask can be used to choose a subset of Source areas that will generate glints. A color Mask can be used to selectively adjust the glint colors in different regions. The Mask is applied to the source before the glints are generated so it will not clip the resulting glints.

Parameters:

Size:   Default: 1,  Range: 0 or greater,  Shared.
Scales the length of all glint rays. This and all the size parameters can be adjusted using the Size Widget. Note that a zero glint size still enhances the bright areas; set the brightness parameter to zero if you want to pass the Source through unchanged.

Size X:   Default: 1,  Range: 0 or greater,  Shared.
Scales the length of the horizontal glint rays.

Size Y:   Default: 1,  Range: 0 or greater,  Shared.
Scales the length of the vertical glint rays.

Size Diag1:   Default: 0.75,  Range: 0 or greater,  Shared.
Scales the length of the diagonal rays from top right to bottom left.

Size Diag2:   Default: 0.75,  Range: 0 or greater,  Shared.
Scales the length of the diagonal rays from top left to bottom right.

Invert Mask:   Check-box,  Default: off,  Shared.
If enabled, inverts the mask input so the effect is applied to areas where the Mask is black instead of white.

Size Red:   Default: 1,  Range: 0 or greater.
Scales the length of the red component of the rays. If the red, green, and blue sizes are equal the glints will be uniform in color and will match the color of the source clip. If they are not equal, the glint colors can vary along the lengths of the rays.

Size Green:   Default: 2,  Range: 0 or greater.
Scales the length of the green component of the rays.

Size Blue:   Default: 3,  Range: 0 or greater.
Scales the length of the blue component of the rays.

Blur Glint:   Default: 0,  Range: 0 or greater,  Shared.
The glints are blurred by this amount before being combined with the background.

Hue Shift:   Default: 0,  Range: any,  Shared.
Shifts the hue of the glint, in revolutions from red to green to blue to red.

Brightness:   Default: 1,  Range: 0 or greater,  Shared.
Scales the brightness of all the glints.

Scale Colors:   Default rgb: [1 1 1],  Shared.
Scales the color of the glints. The colors and brightnesses of the glints are also affected by the Source input.

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

Threshold:   Default: 0.7,  Range: 0 or greater,  Shared.
Glints are generated from locations in the source clip that are brighter than this value. A value of 0.9 causes glints at only the brightest spots. A value of 0 causes glints for every non-black area.

Threshold Blur:   Default: 0.1,  Range: 0 or greater,  Shared.
Increase to smooth out the areas creating glints. This can be used to eliminate glints generated from small speckles or to simply soften the glints. Increasing this may put more highlights below the threshold and darken the resulting glints, but you can decrease the Threshold parameter to compensate.

Source Opacity:   Default: 1,  Range: 0 or greater,  Shared.
Scales the opacity of the Source input when combined with the glints. This does not affect the generation of the glints 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:

Brightness X:   Default: 1,  Range: 0 or greater,  Shared.
Scales the brightness of the horizontal glint rays.

Brightness Y:   Default: 1,  Range: 0 or greater,  Shared.
Scales the brightness of the vertical glint rays.

Brightness Diag1:   Default: 1,  Range: 0 or greater,  Shared.
Scales the brightness of the diagonal rays from top right to bottom left.

Brightness Diag2:   Default: 1,  Range: 0 or greater,  Shared.
Scales the brightness of the diagonal rays from top left to bottom right.

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

Glint From Matte:   Default: 0,  Range: 0 to 1,  Shared.
Set to 1 to generate glints from the alpha channel of the source input instead of the RGB channels. In this case the glints 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.

See Also:

GlintRainbowMaskComp

Glint GlintMask GlintComp

Glare Sparkles Glow

Sapphire Plug-ins Introduction

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