Patent Document ID: 9875577
Application ID: 14139491
Patent Flag: 1

Claim One:
1. A method, implemented by a first computer system and a second computer system, for tessellating a three-dimensional modeled object parameterized for tessellation, according to one or more criteria including at least a maximal deviation, comprising the steps of: at the first computer system: providing a boundary representation of the modeled object, the boundary representation comprising geometrical data including parametric surfaces and topological data including a set of faces each defined as a portion of a 2D domain of a respective parametric surface; determining, for each respective face, a respective 2D mesh fitting said respective face, comprising the steps of: subdividing boundary edges of the respective face, defining a set of vertices within the respective face, the vertices being points defined on the portion of the 2D domain of the respective parametric surface defining the respective face, and determining a partition of the respective face based on the result of subdividing boundary edges of the respective face and of defining a set of vertices within the respective face; associating the 2D meshes to the geometrical data of the boundary representation; and sending the 2D meshes associated to the geometrical data to the second computer system, wherein the sent 2D meshes associated to the geometrical data represent the modeled object parameterized for tessellation; and at the second computer system: receiving from the first computer system, the 2D meshes associated to the geometrical data; subdividing the received 2D meshes, the subdividing being performed one or more times as a function of the one or more criteria, including the at least maximal deviation; after the subdividing the received 2D meshes, determining 3D meshes by evaluating the position of vertices of the received 2D meshes on the respective parametric surfaces, wherein the evaluating transforming the position of the vertices from a 2D position to a 3D position on the respective parametric surfaces to determine the 3D meshes, and wherein the 3D meshes represent the tessellated modeled object; and displaying the modeled object on a user interface by directly rendering the determined 3D meshes.