instead of "Variable deadrise" how about Variable Geometry?

I occurs to me that the standard rough water RIB has a hollow hard planing hull that floods with ballast at rest.

Has anyone tried to make the boat equivalent to a swing-wing aircraft?

A hull that can change from fairly flat quick planing to deep vee?

I'm thinking the rear would be basically two rectangles hinged at the keel, and the front would be two triangles with trailing edge overlapping the front of the rectangles just a tad.

This rig would be carried on sliders under a basically flat hull.

It would be 'hollow' when in deep-Vee mode and thus could take on ballast water like RIB.