Parameterization of subdivision surfaces
AssigneeSilicon Graphics, Inc.
InventorJohn M. Lounsbery
Life of this patent
Estimating the term…
Abstract
A method for parameterizing a subdivision mesh in a computer system, the subdivision mesh comprising at least two faces, at least two faces sharing an edge, includes assigning a unique index for each of the at least two faces, assigning, for each of the at least two faces, a first (u) and a second (v) parameter to uniquely parameterize each point on a respective face, each respective u and v parameters for a respective face also being assigned the unique index for that respective face; and at a vertex shared by two faces sharing an edge, setting a first bound for each of the u and v parameters for each of the two faces, and for each of the same two faces, at a vertex not shared by the two faces, setting a second bound for each of the u and v parameters.
Claims26
A method for parameterizing a subdivision mesh in a computer system, the subdivision mesh comprising at least two faces, at least two faces sharing an edge, the method comprising:
- assigning a unique index to each of the at least two faces;
- assigning, for each of the at least two faces, a first (u) and a second (v) parameter;
- and
- at a vertex shared by two faces sharing an edge, setting a first bound for each of the u and v parameters for each of the two faces, and for each of the same two faces, at a respective vertex not shared by the two faces, setting a second bound for each of the u and v parameters.
A storage device tangibly storing a control program, the control program, when coupled to a control device, operating the control device to perform the function of parameterizing a subdivision mesh, the subdivision mesh comprising at least two faces, at least two faces sharing an edge, by:
- assigning a unique index to each of the at least two faces;
- assigning, for each of the at least two faces, a first (u) and a second (v) parameter;
- and
- at a vertex shared by two faces sharing an edge, setting a first bound for each of the u and v parameters for each of the two faces, and for each of the same two faces, at a respective vertex not shared by the two faces, setting a second bound for each of the u and v parameters.
Dependencies are inferred from the claim text.