Mask Effects

Pack of material functions which helps you to create coll mask effects
You can just drag and drop this function in your exist material, Or use Post Process material.
There is example blueprints,scenes,materials.Also, You can make your custom effect using material functions.
Material Functions : 
Local and object based desaturation with and without Post Process.
Volumetric pixelize and volumetric blur.
Scene change material function.
Wireframe volume with cube shape
Wireframe volume with sphere shape
Scan effect