I'm not sure how closely this relates, but when I was doing some 3D modeling. I still like to work in NURBS whenever possible (an earlier form of polygon mapping). The "hull" or structure the computer uses to map out an object's space, is defined as a wrap-around hexagon.
I never noticed that, because they're squares once I convert it to polygons. Maybe hexagons are universally used to define a space while polygons are used to render a space.
must research now