3-Headed Monster Creation in GeoGebra AR

Here, we have a 3-headed monster created within GeoGebra Augmented Reality. The blue surface equation is . The floor function = same as the greatest integer function. Domain restrictions on this blue surface are as follows: The pink surface has equation identical to the blue surface. Yet to fill in the eyes, we used domain restriction . What other kinds of surfaces can we create by authoring surface equations with domain restrictions?
Quick (Silent) Demo

Information: 3-Headed Monster Creation in GeoGebra AR