Very Simple Font Library – Text rendering is very useful to display information on top of a 3D world. VSFL aims at providing users with the ability to render bitmapped text in an OpenGL application using the core profile.
With immediate mode gone in core OpenGL versions, so are the vast majority of font libs that worked with OpenGL. Immediate mode was terribly slow, and code wise very extensive. Vertex Buffers are clearly the way to go. This lib uses VAOs and vertex buffers to render text.