PSX Style Water Surface

This is a water surface shader for Godot 4 that I am using in my helicopter project. I wanted to make a simple water shader that blended two textures and had vertex displacement, and could also pixelate the texture for a more old-school look. Features include:

• 2-layer customizable textures (current is a royalty-free placeholder) that can move in different directions and have adjustable blending levels
• Vertex-based wave displacement based on Godot's fastnoiselite
• Control the level of pixelation in each texture
• Opacity and edge foam is customizable