1. Attach the VoxelMesh.gd script to a Node3D.
2. Set the Noise: Set fast noise lite.
3. Adjust the Chunk size property to control the terrain size. Be careful - large values slow down the editor a lot!
4. Set another parameters - inverse noise, material, etc.

Tested on Godot 4.4. It’s public domain, so use it however you want!

Disadvantages:

1. The algorithm is very simple.
2. Large terrain require a lot of computing power.
3. No UV, use triplanar materials.