Additional Commands Not Needed

Space is divided into cubes. Each cube goes to its own processing node, and gets converted into surface.

Now, we have a problem. Once surface changes, we need to detect what cubes to remove and what to leave where they are, independently from one another.

Possible solution is to mark cubes in the neibourhood of the modification for re-surfacing, so that they automatically propagate over new surface. Old surface, can be used as seeds, with added benifit of being automatically removed afterwards.

All this solution requires is a bit more robust Cuber.