skyjake/Doomsday-Engine — pull request #4 by cmbruns (2013-10-29 10:49:47+00:00)
Title: Failed attempt to render Rift mode to offscreen buffer, then restore to ...

...screen.
Uncomment line 616 (#define TRY_OCULUS_OFFSCREEN 1) of clientwindow.cpp to experience the sad results.