Godot 4: Shader libraries and polar coordinates (tutorial)

Good morning! Or afternoon or evening, depending on where you are in the world. Did you know that Godot allows you to create libraries of functions for shaders that you can later link to your shading language script without the need to copy and paste their code every time? We’ll demonstrate this with a few simple examples, and then we’ll apply this knowledge to create another shader effect using the polar coordinates.