Transcendence can be run with a number of command line swiches:

  *     /debug runs the game in debug mode, allow access to the console (F9 ingame)
  *     /dx forces DirectX
  *     /nodx forces GDI
  *     /exclusive
  *     /debugvideo extra graphics debug lines in debug.log, paints framerates ingame
  *     /windowed runs the game in windowed mode
  *     /1024 switch to force into 1024×768

Please note that Transcendence uses (as default) GDI under Windows XP, and DirectX under Vista.