Godot 4: Learn to create custom nodes for visual shaders (tutorial)

Hello everybody! In this video, I would like to demonstrate how we can create custom nodes for the visual shader editor in Godot 4. It's a very useful functionality because, despite being a powerful tool, the visual shader editor contains only a finite number of built-in nodes. Sometimes, we'd like to add more nodes that we want to use frequently. It's easy, and I'll show you how to do it right away.