So, my distraction tool is starting to work!
You can shape a plane by multiple paths which determine the height of the verts nearby.
This saves to a tiny resource file of a handful of paths! The speed of the regeneration of the terrain is just about instant.
I foresee this being able to make terrains of any size really at almost no cost.
https://gitlab.com/godot-things1/path-terrain
(All thanks to aeva (npub139c…w37s))
🦇