1. A method for mapping a texture image, which is stored in a memory of a computer system, to a graphical object, which is stored in the memory, the method comprising: determining whole and fractional portions of one or more texture coordinates of a pixel of the graphical object in an address space of the texture image; selecting from the texture image two or more texels which correspond to a first of the texture coordinates of the pixel and each of which has a color; selecting a pair of complementary coefficients from a table, stored in the memory, of predetermined complementary coefficients according to the fractional portion of the first texture coordinate of the pixel; and calculating a weighted average of the color of a first of the texels and the color of a second of the texels according to the pair of complementary coefficients to produce an interpolated texel color.