I received my OR DK2 a few days ago and I am somehow confused about resolution. At least half of the demos I tried so far allows you to choose which resolution you want to render the demo in. It confuses me a little. I know what the DK2 screen native resolution is, however It is also more than obvious that the pictures is stretched, deformed and split in half inside the headset. I don't know (if anyone does), how the Rift handles it. Regarding my quite low GPU abilities (AMD 7850), you will understand I would like as much as possible not to compute "useless" pixels (even if it makes the pictures a little more aliased). Basically, I would like to know what resolution to select before the game/demo starts in order to get a pixel-perfect render inside the DK2. Not down-sampled. Not over/super-sampled.
I can say without a doubt, in a usual situation, if a game is running at the native resolution of the screen or not. But it is far more difficult with a VR headset.
PS : I could bet the answer will differ regarding which engine is used. I am also afraid it is impossible to answer because the deformation is a post-processing effect.
Yet the gpu generates 75 (1920 x 1080) frames per second. Each frame contains the information from two independent (960 x 1080) renders, and is then split. I believe this is why SLI doesn't work out because it's set up to do alternate frames rather than each doing half of every frame. Or I could misunderstand the question.
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