Have an option to turn 3D tiles grid to a mesh, there is multiple advantages :
Currently it's possible to get the GridMap as (a) baked mesh(es) via GridMap.get_bake_meshes(). With the ResourceSaver this mesh can be saved.
Thus this is nothing new!
It needs a button in the editor for usability, on the grid properties :
"Grid to Mesh"
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It needs a button in the editor for usability, on the grid properties :
"Grid to Mesh"