On low persistence and 75Hz or less...
Posted: Sat Sep 06, 2014 7:29 pm
I unfortunately don't have a DK2, so I don't have any first hand experience with what low persistence at typical refresh rates is like, but 75Hz or less on a CRT used to drive me nuts. I know the goal is to increase the refresh rate on future units, and if it's to reduce flicker, I understand why - but I was wondering if it's actually necessary.. If low-persistence is constantly engaged, then I would assume the answer is yes (at least for comfort reasons), but what happens if it's dynamically dis/engaged? For example, in the DK1 if you don't move your head around, you don't notice the judder no matter how much you move/turn your avatar using the mouse/gamepad, and that's with a pretty crappy pixel switching time and full-persistence. AFAIK, low-persistence was devised to only eliminate the judder while physically moving your head, so why not engage low-persistence only beyond some threshold head movement, and then revert back to full-persistence? I don't know how startling or noticeable the transition would be, but there's a huge benefit if it's negligible, or at least tolerable, because then software developers can target 60-75Hz refresh rates which is much more plausible than 90+ without having to significantly reduce image quality or have some monster gaming rig (which is compounded by going beyond 1080p for the consumer version). Any thoughts?