Patent ID: RE41677

Claim:
A computer-implemented method for generating a surface feature of a limit surface in a graphical object represented at least in part as a polygonal mesh, said computer-implemented method comprising the steps of : a) subdividing all or part of a polygon mesh representation of at least a portion of said graphical object a first number of times using one or more shape parameters and a first set of rules to produce a first mesh representation in addition to the polygon mesh of said at least a portion of said graphical object , wherein at least one of the shape parameters has a non- integer value that defines the limit surface ; b) subdividing said first mesh representation of said at least a portion of said graphical object a second number of times using a second set of rules , different than said first set of rules , for generating a second mesh representation of said at least a portion of said graphical object in addition to the first mesh representation and the polygon mesh representation ; and c) outputting a representation of said graphical object having said surface feature; wherein a sum of the first and second numbers is equal to a total number of iterations required to achieve the surface feature of the limit surface; and wherein the points on the limit surface are determined as the infinite subdivision limit of the second mesh using the second set of rules .