This tutorial will show you how to create an masked shimmer effect by combining multiple images and image effects. Make sure you checked out the basic guides for the Editor and Scene Wallpaper beforehand. It is recommended that you are already familiar with creating simpler effects before trying this one.
- Create a new 2D scene wallpaper in the editor.
- You will need three images for this effect. A background image like this one , a shimmer mask with a lower resolution like this and finally some kind of beam that will be scrolling over the mask like .
- You can create the mask image in Wallpaper Engine, but keep in mind that everything in Wallpaper Engine is computed in real time and therefore more costly to display. A simple way of getting a mask is using this method  in GIMP.
Create Scrolling Beam
Disable the adjust wallpaper size and center option, because this image will not be used as the background picture that the wallpaper will evolve around.
Add a new image effect and choose Image Effect Scroll.
Change speed y to 0 and speed x to -0.7.
Add another effect and choose Image Effect Transform. Set angle to 0.33 and scale 0.5, 1.
You should now have a scrolling, slanted beam.
Add Shimmer Mask
Import the shimmer mask with these options. Move it out of the way, somewhere next to the beam, using the Gizmos.
Add Image Effect Blend to the mask. Now drag and drop the beam image layer onto the blend texture option. The mask will now animate based on the movement of the beam.
Add Image Effect Blur to the shimmer mask layer, right after the blend we added before. Change kernel size to 7x7.
You should now have a smoothly animated shimmer mask.
Combine Shimmer with Background
Import the main image with these settings. Make sure to tick adjust wallpaper size and center this time.
Add a new Image Effect Blend to this image and drag and drop the mask image layer onto the blend texture here.
Change the blend mode to linear dodge and adjust the multiply option to your liking, it controls the strength of the effect now.