First off you'll need to create a render texture! Set it's size to some multiple of your screen resolution. For example width can be 1920×3.75=512 and height will then be 1080×3.75=288. After that ...

The Blend Shaders package contains over 20 shaders for blending textures and sprites in Unity (based on Photoshop's blend modes), and it contains a cginc file with a standalone function for each of ...