2011

■ Threshold Lets you determine which parts of the image (usually the
brightest) you want to apply the glow to. You can base the threshold either
on a channel; Red, Green, Blue or Alpha, or Luma, or on a color component
of the image (R,G,B or overall luminance). Values that fall above the set
threshold will have a glow applied and values that fall below the threshold
will be set to black.
■ Gain Colors the glow you apply to an image.
■ X Radius and Y Radius Applies a blurred edge to the glow. Using the
Master slider will apply a blurred edge to both the X and Y radii uniformly.
You can also select a single color component or select just the X or Y
parameter to apply the blur to by deselecting the Lock button located at
the right of the button.
■ Output Mode Choose between working with either the composite of
the image you are working with or just the glow applied to it. If you select
Composite, it applies the blend mode selected.
■ Blend Select the blend mode you want to apply to the glow. Select Blend
to display available blend modes.
To set the threshold:
➤ Do one of the following:
■ Drag the trackball towards the color you want to set as the threshold.
■ Drag any of the red (R), green (G), or blue (B) channel fields to the
right to increase, or to the left to decrease the threshold uniformly
on all three channels. Alternatively, you can also drag the luminance
(L) field to achieve the same result. Select the Reset button to return
all values to 0.
■ Select a single channel that you want to modify by deselecting the
Lock button to the right of the channel, then increase or decrease the
threshold. The other channels are not affected. However, the overall
luminance field updates to reflect the change. Select the Reset button
to return all values to 0.
Glow | 499