1. A system, comprising: an extra-dimension clip-map generator that generates an extra-dimension clip-map (ECM), wherein said ECM includes multiple levels of detail made up of texel data having coordinates in one or more dimensions corresponding to the dimensions of a source texture image and an extra-dimension coordinate having values associated with the multiple levels of detail; and a memory that stores said ECM, whereby texture can be applied when rendering a frame based on texel data sampled from said stored ECM.