Skip to main content

SteamVR's new 'asynchronous reprojection' feature aims to reduce VR lag

steamvr asynchronous reprojection aims to reduce vr lag steamvrasync
Image used with permission by copyright holder
Valve’s latest SteamVR beta introduces a new “asynchronous reprojection” feature that aims to reduce lag and visual stuttering within supported virtual reality games and applications, ensuring a smoother VR experience with less likelihood for discomfort.

The feature is a boon for virtual reality enthusiasts with limited hardware capabilities, as the technology seeks to deliver consistent VR performance regardless of a user’s chosen VR gear or desktop hardware configuration.

UploadVR reports SteamVR’s new asynchronous reprojection feature is equivalent to “Asynchronous Timewarp,” a technique VR developer Oculus uses to ensure smooth performance for users of Oculus Rift headsets. Both technologies use reprojection to replace dropped frames and eliminate positional “judders” within virtual reality applications that occur when performance drops below 90 frames per second.

After installing SteamVR’s latest beta, users have the option of enabling or disabling asynchronous reprojection within the application’s Performance menu. Valve notes asynchronous reprojection is still in an early testing phase and requires Nvidia video card users to install driver version 372.54 or later. Currently, AMD GPUs are not supported.

VR enthusiasts who want to track the inner workings of asynchronous reprojection can consult SteamVR’s newly updated frame-timing graph, which shows how many times individual frames have been reprojected to account for lag or slowdown. Presented frames are shown in white, while reprojected frames are shown in red, giving users an idea of which VR elements are especially demanding for their hardware setups.

SteamVR also introduced the “allow interleaved reprojection” feature with this week’s update, giving players the option of reducing frame rates to 45Hz instead of duplicating frames. Valve warns that the option “leads to less positional judder, but that judder is more random (which tends to be more annoying).”

As Valve makes its initial steps toward asynchronous reprojection technology, Oculus is already pursuing an advanced method of VR reprojection. Dubbed “Oculus Asynchronous Spacewarp,” the feature allows lower-end PC gaming rigs to run VR applications smoothly thanks to a unique frame-blending spatial transformation method. Currently, Oculus Asynchronous Spacewarp is a feature exclusive to Oculus-brand VR headsets.

Editors' Recommendations

Danny Cowan
Danny’s passion for video games was ignited upon his first encounter with Nintendo’s Duck Hunt, and years later, he still…
Apple just patented a new VR headset controller — but there’s a catch
Apple VR Headset Concept by Antonio De Rosa

Apple’s mixed-reality headset is due to launch this June at the company’s Worldwide Developers Conference (WWDC), and a freshly published patent hints at some of the controllers Apple might offer with the device. But some major caveats could prevent these accessories from ever seeing the light of day.

The patent (number 20230096068) describes how Apple could create a handheld controller with a “torque feedback mechanism” to provide immersive physical responses while using a mixed-reality headset. That might help offset the drawbacks of virtual input methods (like touchscreens), which can “detract from the realism” of the experience and leave a user unsure if their input has properly registered, according to Apple.

Read more
What is VR?
Learn the basics of VR: Here's everything you need to know about virtual reality
Playing a fitness game in VR with the Quest Pro.

VR, or Virtual Reality, is a technology designed to make you feel immersed in a virtual world. It's a distinctly different feeling than playing a game or navigating a 3D environment on a static 2D monitor, giving a real feeling of presence in the virtual space. This is typically achieved with a VR headset that places one or two displays very close to your eyes, whilst tracking your position so that it can be translated into the virtual world.

The technology has grown and improved in leaps and bounds over the past decade, with the best VR headsets featuring super high-resolution displays, ever-more nuanced motion controls, and even the ability to use them wirelessly.

Read more
Apple’s XR headset could get one of the Mac’s best features
Apple VR Headset Concept by Antonio De Rosa

Apple is known for the strong ecosystem that lets all its devices work pretty seamlessly together. A new patent suggests the company’s upcoming Reality Pro headset will be a full-fledged member of this ecosystem -- and get one of Apple’s best features in the process.

According to the patent, Apple might bring its Continuity system to its upcoming mixed-reality headset. That means you’ll be able to send work from one device to another with just your eyes, all through the power of the headset’s augmented reality tech.

Read more