http://fgiesen.wordpress.com/2014/07/07/cache-coherency/

http://stevehanov.ca/blog/index.php?id=142

http://stephaneginier.com/test/multiresgl/

http://ubuntugamingproject.blogspot.it/2014/07/unreal-engine-4-linux-demos.html

http://wiki.polycount.com/VertexNormal