The S_UltraGlow filter comes from the Emmy award winning Boris FX Sapphire filter set.

Light.

To select a preset, pick one from the Presets win\dow.

Scales the brightness of all the glows.

Scales the color of the glows.

Glows are generated from locations in the image that are brighter than this value. A value of 0.9 produces glows at only the brightest spots, while a value of 0 produces glows for every non−black area.

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.

Scales the glow distance. Note that a 0 glow width still enhances the bright areas. Set the brightness parameter to 0 if you want to pass the original image through unchanged.

Boost or cut the distance that the glow extends.

Amount to grow the outskirts of the thresholded result, or shrink if negative.

Scales the horizontal glow width. Set to 0 for vertical only.

Scales the vertical glow width. Set to 0 for horizontal only.

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.

Scales the green glow width.

Scales the blue glow width.

Enables glowing by subpixel widths.

Selects the type of output.

Shows the final result of combining the glow and image.

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

Scales the glow distance of the secondary glow.

Scales the color of the secondary glow.

Scales the horizontal secondary glow width.

Scales the vertical secondary glow width.

Scales the appearance of narrow trails in the horizontal direction.

Scales the appearance of narrow trails in the vertical direction.

Enables edge detection.

Determines how the detected edges are combined with the image.

Detected edges are blended with the image using a screen operation.

Detected edges are added to the image.

The image is replaced with only the detected edges.

Increase for thicker and smoother edges.

Determines the behavior when accessing areas outside the image.

Areas outside the image are treated as transparent which can produce transparency around the edges of the image. Select this for fastest rendering.

Reflects the image outside the border.

Atmosphere gives the effect of the glow shining through a dusty atmosphere and picking up light or getting shadowed.

Enables/disables the atmosphere layer.

Adjusts the amount, or amplitude, of the atmospheric effect. 0 gives a smooth glow, higher values give more dusty look.

Controls the spatial frequency of the atmospheric noise. Turn this up to get finer details or turn down for broader overall variation.

Controls the amount of fine detail in the atmosphere simulation. Decrease to get smoother atmosphere or increase for a more crunchy or grainy look.

Scales the highlights. Increase for a more intense result.

Scales the blacks. Increase for a more subtle result.

Used to initialize the random number generator for the atmospheric noise. The actual seed value is not significant, but different seeds produce different results and the same value should give a repeatable result.

Combines the atmosphere with the image prior to any glows.

Enables highlights using an electrical plasma texture.

The spatial frequency of the highlights. Increase to zoom out or decrease to zoom in.

The relative horizontal frequency of the highlights. Increase to stretch vertically or decrease to stretch horizontally.

The number of octaves of highlights to include. Each octave is twice the frequency and half the amplitude of the previous.

Determines the amplitude and direction of a gradient which orients the highlights. Increasing X makes them more vertical.

Determines the amplitude and direction of a gradient which orients the highlights. Increasing Y makes them more horizontal.

The number of layers of highlights. Increase for a more striped effect.

Determines the thickness of the highlights. Increase for thinner lines or decrease for thicker and brighter ones.

Scales the brightness of the highlights.

Scales the highlights. Increase for a more intense result.

Scales the blacks. Increase for a more subtle result.

Soften the edges of the highlights.

Determines how the glow is combined with the image. This parameter has no effect if Light Background is set to 1.

The image is multiplied by the glow.

The glow is added to the image.

The glow is blended with the image using a screen operation.

The result is the difference between the glow and the image.

The glow is combined with the image using an overlay function.

Generate glows from the alpha channel instead of the RGB channels. In this case, the glows will not pick up color from the image and will typically be brighter. Values between 0 and 1 interpolate between using the RGB and the alpha.

Composites the image over the glows.

Increase this to give a look of the glow casting light onto the background image. To see this more clearly, you can lower the Scale Background parameter or raise the Brightness parameter.

Scales the opacity of the image when combined with the glows. This does not affect the generation of the glows themselves.

If enabled, transparent borders are added to the 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.

Enables/disables the on-screen control for adjusting the Glow.