A current examine concluded that 120fps is the “necessary threshold” to keep away from VR illness for most individuals.
The paper comes from Xi’an Jiaotong–Liverpool College in China, the place the authors have been finding out the results of VR refresh charges, decision, haptics, stereoscopy, and extra for years, together with how these components all relate to simulator illness.
A Pimax 5K Tremendous was used for the examine as a result of it helps as much as 180Hz refresh price, the best of any headset available on the market.
The examine examined 60fps, 90fps, 120fps, and 180fps to check the impact on illness for the 32 contributors, 16 male and 16 feminine, aged between 18 and 51.
It discovered that 120fps is an “necessary threshold” after which the contributors reported considerably decreased nausea in comparison with 60fps and 90fps. At 180fps the discount in nausea was minimal, suggesting 120fps is the brink.
It is necessary to notice nevertheless that this examine was confined to 1 area of interest headset, so it is unknown whether or not its outcomes generalize to different headsets. The Pimax 5K Tremendous has a considerably wider subject of view than typical VR headsets, for instance, with geometric distortion all through the periphery. Previous analysis has indicated that subject of view and geometric distortion can each have an effect on illness.
| Headset | Supported Refresh Charges (Hz) |
| Apple Imaginative and prescient Professional | 90 / 96 / 100 |
| Quest 2 | 60 / 72 / 80 / 90 / 120 |
| Quest 3 | 60 / 72 / 80 / 90 / 120 |
| Pico 4 | 72 / 90 |
| PlayStation VR2 | 90 / 120 |
| Valve Index | 72 / 80 / 90 / 120 / 144 |
| Pimax 5K Tremendous | 90 / 120 / 144 / 180 |
| Pimax Crystal | 72 / 90 / 120 |
Quest 3 and Quest 2 do assist 120Hz refresh price. However in standalone mode it is a developer-side possibility that only a few use, as a result of the requirement to render every body in simply 8 milliseconds severely limits graphical constancy and simulation complexity on cell chipsets.
Most titles run on the default 72Hz on Quest 2, whereas many titles have applied an improve to 90Hz on the newer Quest 3. It will likely be a very long time till 120Hz is the usual in standalone VR.
Each Sport That Helps 120Hz On Oculus Quest 2
With the v28 software program replace, Oculus Quest 2 now has experimental assist for a 120Hz refresh price. Right here’s each Oculus Retailer recreation that may run at 120Hz on Quest 2 (up to now). The Quest 2 shipped final 12 months with only a 72Hz refresh price — the identical as the unique
On PC rendering at 120FPS is achievable with most graphics playing cards in easy titles similar to Beat Saber, however requires extraordinarily costly high-end {hardware} for extra advanced experiences similar to simulators. Valve Index even helps a 144Hz mode, and the Pimax 5K Plus used within the examine helps 180Hz.
Considerably complicating the matter of body price although is reprojection and movement extrapolation, which double the true body price by producing artificial middleman frames. This is quite common on PlayStation VR2, the place many video games render at 60fps to be reprojected to 120fps for show at 120Hz. On Quest it is a developer-side possibility too, however solely utilized in a handful of titles similar to Murderer’s Creed Nexus, whereas on PC it is a compositor-side characteristic that kicks in when your graphics card is underneath an excessive amount of load.
Whereas it is unknown whether or not this examine’s outcomes apply to all headsets, it is nonetheless an fascinating end result that implies the trade should not accept even the 90fps commonplace established on the launch of the Oculus Rift and HTC Vive, by no means thoughts the 72fps popularised by standalone headsets like Oculus Quest. Simply as decision is pushing ahead so ought to body price, to make sure headsets make as few folks sick as attainable.
