Optics-2022 : Filters : S_GlowRings
S_GlowRings
Description
Generates glows of colored rings around the areas of the image that are brighter than the given threshold.
The S_GlowRings filter comes from the Emmy award winning Boris FX Sapphire filter set.
Category
Light.
Controls
Presets
To select a preset, pick one from the Presets window.
Brightness
Scales the brightness of all the glows.
Color
Scales the color of the glows.
Threshold
Glows are generated from locations in the image that are brighter than this value. A value of 0.9 causes glows at only the brightest spots. A value of 0 causes glows for every nonāˆ’black area.
Threshold Add Color
This can be used to raise the threshold on a specific color and thereby reduce the glows generated on areas of the image containing that color.
Glow Width
Scales the glow distance. Note that a 0 glow width still enhances the bright areas.
Width X
Scales the horizontal glow width. Set to 0 for vertical only.
Width Y
Scales the vertical glow width. Set to 0 for horizontal only.
Width Red
Scales the red glow width. If the red, green, and blue widths are equal, the glows will match the color of the image. If they are not equal, the glows will vary in color with distance.
Width Green
Scales the green glow width.
Width Blue
Scales the blue glow width.
Subpixel
Enables glowing by subpixel widths.
Thickness Red
Scales the thickness of the red region.
Thickness Green
Scales the thickness of the green region.
Thickness Blue
Scales the thickness of the blue region.
Show
Selects the type of output.
Result
Shows the final result of combining the glow and image.
Threshold
Shows the thresholded image that is used to generate the glow.
Glow From Alpha
The glow is generated from the alpha channel instead of the RGB channels. In this case, the glow will not use color from the image and will typically be brighter. Values between 0 and 100 interpolate between using the RGB and the alpha.
Glow Under Source
Set to 1 to composite the image over the glows.
Source Opacity
Scales the opacity of the image when combined with the glows. This does not affect the generation of the glows themselves.
Combine
Determines how the glow is combined with the image.
Mult
The image is multiplied by the glow.
Add
The glow is added to the image.
Screen
The glow is blended with the image using a screen operation.
Difference
The result is the difference between the glow and the image.
Overlay
The glow is combined with the image using an overlay function.
Expand Borders
If enabled, transparent borders are added to the input image before processing. This allows the result to include soft edges beyond the original image size. When off, the effect only occurs within the frame and the result will retain an edge at the borders.
Show Glow Width
Turns on or off the on-screen control for adjusting the Glow Width parameter.