1. A method of determining pixel parameters comprising: accessing a geometric primitive comprising a plurality of vertices wherein each vertex has associated therewith a plurality of parameters including a pair of texture coordinates; during rasterization of said geometric primitive performed in a rasterization module of graphics pipeline, computing a respective pair of texture coordinates for each pixel of said geometric primitive using interpolation and wherein each texture coordinate of each pixel comprises an integer portion and a fractional portion; and propagating only said fractional portions of said texture coordinates to a downstream pipeline module of said graphics pipeline, wherein said downstream pipeline module comprises a data fetch module, and wherein said data fetch module obtains texels addressed by said fractional portions of said texture coordinates.