Patent attributes
Techniques are provided for repairing a polygon mesh that represents a three-dimensional surface, the repaired mesh comprising explicit regions that are preserved from the original mesh and implicit regions that are modified from the mesh repair operation. The explicit and implicit regions that comprise the hybrid surface meet along a “cut path” which can be located by identifying the elements of the volumetric grid where the implicit and explicit surfaces diverge. These elements comprise a path of marching cubes having faces that intersect the polygon elements of the explicit surface along the cut path. In certain embodiments the path between these intersections is selected so as to reduce deviation from the marching cube face and the path length. Once a preferred cut path is selected, the polygons that comprise the explicit surface are subdivided to conform to the cut path.
