Shader that renders billboard 3D sprites on top of walls to avoid clipping?

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Shader that renders billboard 3D sprites on top of walls to avoid clipping?

elvisish

Is it possible to use a shader to always draw a billboard 3D sprite on top of walls so it doesn't clip at certain angles? Using render priority doesn't really work, disabling Depth Test makes it appear on top of geometry in front of it and even with offsetting it slightly from the walls, it still clips at particular angles. I know of some shaders that do z-test in unity, but so far I've not found anything for Godot.