Patent ID: 7053913

Claim:
A method for inserting an inset terrain within a larger scale terrain for a computer simulated environment, comprising: determining a perimeter geometry of the inset terrain during runtime; defining a polygon skirt of substantially the same geometry as the perimeter geometry of the inset terrain and the polygon skirt is attached to the larger scale terrain; joining the inset terrain to the defined polygon skirt yielding a perimeter boundary region between the inset terrain and the polygon skirt; concealing the boundary region with a first polygon wall connected to the inset geometry below a viewable surface of the inset geometry; covering the boundary region with a second polygon wall connected to the polygon skirt, located below the viewable surface of the inset geometry and the polygonal geometry; concealing the boundary region by intersecting the first polygon wall and the second polygon wall; and displaying the inset terrain within the larger scale terrain.