Reference > Nodes > Filter > Glow

Glow Node


The Glow effect turns your image into a glow area with a bright soft-edged light or diffuse light region around an image. The Glow effect is useful for creating a shining rim around objects, such as the sun or stars. Clone your layer or connect it a second time to the Composite node to display the original image on top of the glow.

Refer to the following example to connect this node.

NOTE: If this effect is connected below a Composite node set to Pass-Through, the effect will be applied to each element connected in the Composite node individually. If some of these elements are overlapping, the effect will also overlap.


Parameter Description

Enables or disables the selected node in the Camera, Timeline, and Node views.

Colour Swatch

Changes the node and layer colour.

Name Use this field to rename the node.
Truck Factor Activated by default, this option readjusts the blur when the elements undergo a change of depth or scale. When disabled, the effect's values will remain unchanged regardless of depth or scale changes. It is recommended that this option be disabled when multiple drawings are composited and attached this effect.
Blur Type

Radial: The edges of the matte are blurred evenly around points that make up the edge of the matte.

Directional: The matte is blurred in the direction you select.


Enter a value for the size of the blur. The larger the value, the greater the blur effect. The blur radius is affected by the drawing scale and camera position.

Directional Angle

If you selected the Directional Blur type, you can set the direction of the blur by entering a value from 0 to 360 in this field.

0: Blurs the image to the west.

90: Blurs the image to the south.

180: Blurs the image to the east.

270: Blurs the image to the north.

Directional Falloff Rate

The distance where the blur fades from the edge of the image. Select a value between 0 and 1.

0: Makes the blur fade out slowly, distributing the blur evenly from the edge of the character to the farthest edge of the blur.

1: Makes the blur fade out quickly. The blur is heaviest closer to the edge of the image.

Invert Matte Inverts the matte used to create the tone, shadow, or highlight.
Use Matte/Source Colour Creates the shadow or tone using the matte shape's colour. Be sure that you are in render mode to see this effect and that your background is NOT white and that you do NOT have a white colour card node attached to the composite. As the matte only gives colour information, but no alpha, the matte is automatically multiplied with the background colours. If there is no colour card attached and the background appears black, you will see the matte colour at full opacity. If it is multiplied with a white background, the colours disappear into the full 255.
Multiplicative Multiplies the tone or shadow colours with the background.

Enter a value to add or subtract from the colour channels in the drawings or attach these values to function curves.

Colour Swatch Opens the Colour Picker where you can specify the colour.

Lets you set a value to determine the strength of the effect or attach a function to animate the effect.