Patent Document ID: 20020050979
Application ID: 09939296
Patent Status: 0

Claim One:
1. A rendering unit comprising: sample position generation logic configured to generate sample positions in a two-dimensional screen space; sample testing logic configured to receive graphics data including three vertices defining a triangle and to determine which of said sample positions reside inside the triangle; sample ordinate generation logic coupled to the sample position generation logic and the sample testing logic, wherein the sample ordinate generation logic is configured to compute a first axial rate of change of a first ordinate based on the three vertices, and, for each sample position residing inside the triangle, (a) to multiply the first axial rate by a first sample displacement resulting in a first product, (b) to interpolate a first projection value for a projection point on a first edge of the triangle, and (c) to add the first product to the first projection value resulting in a first sample ordinate value, wherein the first sample ordinate value is usable to determine at least a portion of a displayable image.