A system, apparatus, and method are disclosed for modifying positions of
sample positions for selectably oversampling pixels to anti-alias
non-geometric portions of computer-generated images, such as texture, at
least in part, by translating (e.g., shifting) shading sample positions
relative to a frame of reference in which there is no relative motion
between the geometries and the coverage sample positions. In one
embodiment, an exemplary method determines whether a coverage sample
position is covered by a geometric primitive. The method includes
translating a shading sample position from an original shading sample
position to the coverage sample position. This generally occurs if the
geometry covers the coverage sample position to form a covered coverage
sample position. Further, the method samples a shading value at the
covered coverage sample positions for the pixel portion to anti-alias,
for example, texture to reduce level of detail ("LOD") artifacts.