mesa: mesa (Open source implementation of the OpenGL graphics API.) mesa: mesa: Mesa 3D is the only commonly known, fully open source implementation mesa: of OpenGL which is continually updated to support latest OpenGL mesa: specification. It is widely used, most importantly by the X.Org mesa: implementation of the X Window System where it serves as the OpenGL mesa: core for the open-source X.Org/DRI OpenGL drivers. mesa: mesa: mesa: mesa: