There's a really good writeup of that here as well: http://codeflow.org/entries/2010/dec/09/minecraft-like-rendering-experiments-in-opengl-4/#tessellating-quad

There's a really good writeup of that here as well: http://codeflow.org/entries/2010/dec/09/minecraft-like-rendering-experiments-in-opengl-4/#tessellating-quads http://codeflow.org/entries/2010/dec/09/minecraft-like-rende... Less thorough on meshing (or tesselation as he calls it), but a very good read.