http://www.braynzarsoft.net/Articles/index.php?p=VA&article=Easy-Font-Rendering-in-DirectX-11
http://www.wildfiregames.com/forum/index.php?showtopic=17365
Beginning DirectX 11 Game Programming
http://fractiousg.blogspot.com/2012/04/rendering-text-in-opengl-on-android.html
// OGL
http://en.wikibooks.org/wiki/OpenGL_Programming/Modern_OpenGL_Tutorial_Text_Rendering_02