Mesa is a 3-D graphics library with an API which is very similar to that
of OpenGL*.

Mesa has a web page at SourceForge:
http://sourceforge.net/projects/mesa3d/

Mesa is available by ftp from ftp.kddlabs.co.jp/.6/graphics/mesa3d/.

Mesa is distributed in two pieces: main library code and demos.  If
you're upgrading from a previous version of Mesa or you're not
interested in the demos you can just download the core Mesa archive
file.