ioquake3 (1.36+u20161101+dfsg1-1) unstable; urgency=medium

  The "opengl2" renderer, using modern OpenGL, is now the default.
  This change affects OpenArena, Quake III Arena and anything else
  using the shared ioquake3 engine.

  On older hardware this might cause graphical glitches or poor
  performance. You can switch back to the old "opengl1"
  renderer by opening the in-game console (Shift+Escape) and
  typing

      \seta cl_renderer opengl1
      \vid_restart

  or by running the games like this:

      openarena +seta cl_renderer opengl1

      quake3 +seta cl_renderer opengl1

  After changing the renderer once, it is saved to the
  configuration file.

  If you use game mods or addons like OpenArena's "Mission Pack",
  Quake III Team Arena or Threewave CTF, please note that the setting
  is saved separately for each game mod. To run a specific game mod
  and select the opengl1 renderer, you can use a command like:

      openarena +seta cl_renderer opengl1 +set fs_game missionpack

 -- Simon McVittie <smcv@debian.org>  Sat, 05 Nov 2016 19:03:47 +0000