17. A graphics processing system comprising: a shader component for performing shading operations; and a texture unit for performing sparse texture operations utilizing a sparse texture residency translation map, wherein a probe process is utilizing said sparse texture residency translation map information to return a finest LOD that contains the texels for a texture lookup operation.
17. A graphics processing system comprising: a shader component for performing shading operations; and a texture unit for performing sparse texture operations utilizing a sparse texture residency translation map, wherein a probe process is utilizing said sparse texture residency translation map information to return a finest LOD that contains the texels for a texture lookup operation. 19. A graphics processing system of claim 17 wherein said texture unit performs a texture lookup in said sparse texture residency translation map.