The effect is only applied to these channels.

If you set this to something other than none, you can use the checkboxes on the right to select individual channels.

Sets the color of the glow effect.

Sets the low threshold below which no glow is applied.

Sets the brightness of the glow effect.

Sets the color saturation value for any glow effect.

When enabled, only the effect is passed downstream allowing you to use the effect on other footage.

Adjusts the size of pixels within the channels defined by the channels control. Values less than 15 increase the dark pixels and vice versa.

Sets the filter algorithm to use:

• box

• triangle

• quadratic

• gaussian

Note:  Box is the fastest to render, whereas Gaussian blur is the smoothest.

Sets the quality of blur to apply. The image is scaled down, so that the blur filter is no larger than this number, and then scaled up using linear interpolation after filtering.

Note:  Lower quality values process more quickly, but the result is not as smooth.

When enabled, if the bounding box is at or inside the format, don't enlarge the effect past the format. This avoids creating oversized images that aren’t used.

Enables the associated mask channel to the right. Disabling this checkbox is the same as setting the channel to none.

The channel to use as a mask. By default, the effect is limited to the non-black areas of this channel.

Copies the mask input to the predefined mask.a channel. Injecting the mask allows you to use the same mask further downstream.

Inverts the use of the mask channel, so that the effect is limited to the non-white areas of the mask.

When enabled, only apply the effect to the edge of the mask.

When disabled, the effect is applied to the entire mask.