6.9. Long Shadow

6.9.1. Overview

This GEGL-based filter was added in GIMP 2.10.6. It simplifies creating long shadows in several visual styles.

6.9.2. Activating the Filter

This filter is found in the main menu under FiltersLight and ShadowLong Shadow….

It is available if the selected layer holds an Alpha channel (see Kohta 7.36, ”Add Alpha Channel”). Otherwise, it is disabled.

6.9.3. Options

Kuva 17.129. Long Shadow filter options

”Long Shadow” filter options

Presets, Input Type, Clipping, Blending Options, Preview, Split view
[Huomaa] Huomaa

These options are described in Kohta 2, ”Common Features”.

Original file; the text layer was created via the "Layers to Image Size" function in the "Layer" menu

You can use different styles Finite that is default, Infinite, Fading, and Fading (fixed length).

Kuva 17.130. Style option examples

”Style” option examples
Finite (default)
”Style” option examples
”Style” option examples
”Style” option examples
Fading (fixed length); length = 30


Shadow angle, in degrees.

Angle = 110°

Shadow length, in pixels. Only available when Style is set to Finite or Fading (fixed length).

Length = 30

Shadow fade midpoint. Only available when Style is set to Fading or Fading (fixed length).


You can choose the color of the shadow here. Just click on the color swatch, and select a color when the color selector pops up, or use the eye-dropper to pick a color from the image.


The Output composition selects how the output of this filter will be determined. There are three choices:

  • Shadow plus image will output both the input image and the created shadow. This is the default.

  • Shadow only will output only the created shadow.

  • Shadow minus image will output the created shadow but subtracts the area hidden by the image.

Kuva 17.131. Composition option examples

”Composition” option examples

Shadow only

”Composition” option examples

Shadow minus image