Patent Document ID: 8605085
Application ID: 12580092
Patent Status: 1

Claim One:
1. A computer-implemented method for modifying parameters to account for perspective foreshortening in tessellation operations, the method comprising: receiving a plurality of control points that define a geometric object having a plurality of edges; for each edge of the geometric object, computing a near target step size and a far target step size; for each edge of the geometric object, formulating a warp function based on the near target step size and the far target step size associated with the edge, wherein each warp function comprises a quadratic function; receiving a set of barycentric parameters defining a first point within the geometric object in world-space; for each edge of the geometric object, computing a set of warped barycentric parameters for the set of barycentric parameters based on the warp function associated with the edge; and blending the sets of warped barycentric parameters to produce a set of parameters that defines a sample vertex within the geometric object in screen-space.