How to create a 3D dither shader?

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:bust_in_silhouette: Asked By thewraithmod

I want to make a game with stylized lighting as seen in this gif

https://i.redd.it/47oz6x0vg3m41.gif(image larger than 4 MB)

I am unsure how to go about doing this using shaders in Godot as I can’t find any tutorials. Are there any resources or examples that can help me achieve this?