GLXOSD is an extensible on-screen display (OSD)/overlay for OpenGL applications running on Linux with X11 which aims to provide similar functionality to MSI Afterburner/RivaTuner OSD. It can show FPS, frame timings, temperatures and more in OpenGL games and applications. It can also be used to benchmark games, much like voglperf. The LICENSE file contains the default license for files in this repository. All files to which this license doesn't apply are supposed to contain a license header. If you find a file that doesn't have a clear license, or a file whose license is being violated, please contact me immediately at firstname.lastname@example.org.