   mtl
  Hihow can using mtl file in opengl?   
  [google]http://www.fileformat.info/format/material/http://code.google.com/p/saitoobjloader/http://en.wikipedia.org/wiki/Material_Template_Libraryhttp://people.sc.fsu.edu/~burkardt/data/mtl/mtl.htmlhttp://nendowingsmirai.yuku.com/forum/viewtopic/id/1723   ;  Don't post your question multiple times.   