Godot 4 3D Pixelart Shader Demo

This demo shows a basic setup for using the 3D pixel art outline/highlight shaders I made.

Note that the shaders only work as intended when using a low game resolution. If you want to have a higher resolution UI you should render the "game" part inside a sub-viewport and apply the texture to a sprite. If you want to pixelize a high-resolution render you'll have to use something else, though this shader could be combined with a pixelization shader. The shader is meant for the Forward+ renderer.

Before and after. Shader in screenshot is a previous iteration, current one is cleaner.

Inspired by this shader Kody King.

The shader can be used as both a post-processing and object shader. It may cause bugs with transparency, I recommend using it on specific objects for finer control.

Notes

• Orthographic camera has some quirks that are non-specific to the shader:
  • SDFGI & VocelGI not supported (Github issue)
  • DirectionalLight3D shadows behave weird. To fix configure either your Camera's Far property or your DirectionalLight3D's Split 1 property.
• Special thanks to oJadeo for informing me about Godot 4's normal buffer :)

License

MIT, you can use & modify it however you like.

If you use the effect in a game I'd love to see it!