When it was first released in 2013, the then-cutting-edge Oculus Rift DK1 was not the first-ever VR headset, but it was the ...
Configurations for the Oculus Rift DK1 and DK2 and the Xbox Joypad. An OpenGL ES barrel shader for correcting lens distortion. Some of the demos peak at around 25-30 frames per second on a Pi 3.