1. A method for rasterizing a primitive, comprising: determining an edge equation for each edge of a primitive, the edge equation having coefficients defining the edge of the primitive; shifting each edge of the primitive to enlarge the primitive by modifying at least two coefficients of the edge equation defining the edge by an error term that is a first predetermined amount; additionally shifting each edge of the primitive to further enlarge the primitive by further modifying the at least two coefficients of the edge equation defining the edge by a second predetermined amount, wherein the second predetermined amount is equal to the first predetermined amount; and determining pixels that intersect the primitive, using the enlarged primitive.