You could build inner and outer walls, out of different assets and build a hause like lego.
But better way is uv unwrap, adding multiple material slots /id to your mesh in external 3d app, reimport and then you could do that.
You could build inner and outer walls, out of different assets and build a hause like lego.
But better way is uv unwrap, adding multiple material slots /id to your mesh in external 3d app, reimport and then you could do that.