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Glow

Causes bright areas in an image appear brighter by adding glow using a blur filter.

Connection Type	Connection Name	Function
Input	unnamed	The image sequence you want to apply glow to.

Control (UI)	Knob (Scripting)	Default Value	Function
Glow Tab
channels	channels	rgb	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.
tint	tint	1	Sets the color of the glow effect.
tolerance	tolerance	0	Sets the low threshold below which no glow is applied.
brightness	brightness	1	Sets the brightness of the glow effect.
saturation	saturation	1	Sets the color saturation value for any glow effect.
Width channel	N/A	disabled
Width channel	W	none
non linear	nonlinear	disabled
effect only	effect_only	disabled	When enabled, only the effect is passed downstream allowing you to use the effect on other footage.
size	size	15	Adjusts the size of pixels within the channels defined by the channels control. Values less than 15 increase the dark pixels and vice versa.
filter	filter	gaussian	Sets the filter algorithm to use: • box • triangle • quadratic • gaussian NOTE: Box is the fastest to render, whereas Gaussian blur is the smoothest.
n/a	quality	15	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.
crop to format	crop	enabled	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.
mask	N/A	disabled	Enables the associated mask channel to the right. Disabling this checkbox is the same as setting the channel to none.
mask	maskChannelInput	none	The channel to use as a mask. By default, the effect is limited to the non-black areas of this channel.
inject	inject	disabled	Copies the mask input to the predefined mask.a channel. Injecting the mask allows you to use the same mask further downstream.
invert	invert_mask	disabled	Inverts the use of the mask channel, so that the effect is limited to the non-white areas of the mask.
fringe	fringe	disabled	Blurs the edges of the mask.
mix	mix	1	Dissolves between the original image at 0 and the full effect at 1.