I’m making a building with a basement but I’m woking with terrain editor. If i select a square with terrain editor and then delete the terrain, I get e gap on the outside of the building.
Terrain never gives sharp edges. It used to years ago when you placed the voxels with the original Terrain.
Your choices:
use thicker walls on your basement so the curve is hidden in the wall.
use Parts with the same Material as the Terrain. You’ll have to use the Color wheel to fine tune the colour. It won’t look exactly the same, but you may be able to hide it a bit by only using the Parts up to the edge of the paved area.
use the Edit Sculpt tool with the Strength set to about .2 and the Brush Size set to 1. It’ll be a pain and won’t be perfect, but it can get you close.
@FroDev1002 do you mean the Studio Terrain Editor Paint tool with the Replace Material Mode? You shouldn’t need a plugin for this.