The ,ore i check about the adventages of tiled textures with tesselation, the more i believe shinen used this technique, they are also the answer to the problem about high resolution textures introduce and the artifacts they would dispaly if you just simply loaded them, they also come in handy for terrain rendering with tesselation
here
http://books.google.com.mx/books?id=bmv2HRpG1bUC&pg=PA281&lpg=PA281&dq=tiles+textures+tessellation&source=bl&ots=6hOJ8zd7wA&sig=mtlU58XVFicKUMz5klAr4cDRX9w&hl=es&sa=X&ei=TPQ3VNKyCtKRNs7vgqAD&ved=0CFwQ6AEwCw#v=onepage&q=tiles%20textures%20tessellation&f=false
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tiled textures also are a good option in order to prevent the artifacts that dispalcement maps with tesselation produce and also are faster to load
file:///C:/Users/pc/Desktop/tiled%20textures%20solve%20dispalcement%20tesselation%20artifacts.pdf
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