VR Controllers

quest-3-brings-a-big-change-to-controller-tracking-coverage

Quest 3 Brings a Big Change to Controller Tracking Coverage

Meta Quest 3 brings with it new ‘Touch Plus’ controllers that do away with the tracking ring that’s been part of the company’s 6DOF consumer VR controllers ever since the original Rift. But that’s not the only change.

Editor’s Note: for some clarity in this article (and comments), let’s give some names to all the different 6DOF VR controllers the company has shipped over the years.

  • Rift CV1 controller: Touch v1
  • Rift S controller: Touch v2
  • Quest 1 controller: Touch v2
  • Quest 2 controller: Touch v3
  • Quest Pro controller: Touch Pro
  • Quest 3 controller: Touch Plus

6DOF consumer VR controllers from Meta have always had a ‘tracking ring’ as part of their design. The ring houses an array of infrared LEDs that cameras can detect, giving the system the ability to track the controllers in 3D space.

Image courtesy Meta

Quest 3 will be the first 6DOF consumer headset from the company to ship with controllers without a tracking ring; the company is calling new controllers ‘Touch Plus’.

Tracking Coverage

In a session at Meta Connect 2023, the company explained it has moved the IR LEDs from the tracking ring into the faceplate of the controller, while also adding a single IR LED at the bottom of the handle. This means the system has less consistently visible markers for tracking, but Meta believes its improved tracking algorithms are up to the challenge of tracking Touch Plus as well as Quest 2’s controllers.

Note that Touch Plus is different than the company’s Touch Pro controllers—which also don’t have a tracking ring—but instead use on-board cameras to track their own position in space. Meta confirmed that Touch Pro controllers are compatible with Quest 3, just like Quest 2.

Meta was clear to point out that the change in camera placements on Quest 3 means the controller tracking volume will be notably different than on Quest 2.

The company said Quest 3 has about the same amount of tracking volume, but it has strategically changed the shape of the tracking volume.

Notably, Quest 3’s cameras don’t capture above the head of the user nearly as well as Quest 2. But the tradeoff is that Quest 3 has more tracking coverage around the user’s torso (especially behind them), and more around the shoulders:

This graphic shows unique areas of tracking coverage that are present on one headset but not the other

Meta believes this is a worthwhile tradeoff because players don’t often hold their hands above their head for long periods of time, and because the headset can effectively estimate the position of the controllers when outside of the tracking area for short periods.

Haptics

Photo by Road to VR

As for haptic feedback, the company said that “haptics on the Touch Plus controller are certainly improved, but not quite to the level of Touch Pro,” and further explained that Touch Plus has a single haptic motor (a voice coil modulator), whereas Touch Pro controllers have additional haptic motors in both the trigger and thumbstick.

The company also reminded developers about its Meta Haptics Studio tool, which aims to make it easy to develop haptic effects that work across all of the company’s controllers, rather than needing to design the effects for the haptic hardware in each controller individually.

Trigger Force

Touch Plus also brings “one more little secret” that no other Touch controller has to date: a two-stage index trigger.

Meta explained that once a user fully pulls the trigger, any additional force can be read as a separate value—essentially a measure of how hard the trigger is being squeezed after being fully depressed.

What’s Missing From Touch Pro

Meta also said that Touch Plus won’t include some of the more niche features of Touch Pro, namely the ‘pinch’ sensor on the thumbpad, and the pressure-sensitive stylus nub that can be attached to the bottom and used to ‘draw’ on real surfaces.

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These VR Gloves Track Your Fingers & Electrically Stimulate for Haptic Feedback

AI SILK is a Japanese wearable-tech startup that’s set to unveil a new haptic glove at CES 2023 next month which approaches both haptic feedback and finger-tracking in a different way altogether.

AI SILK is a Tohoku University spinoff that develops wearable products using their patented technology to produce smooth conductive fiber, turning them into electrodes that can be used for a number of things.

Called Lead Skin, the controller houses these conductive fibers, which not only provides finger-tracking and control buttons on the back of the gauntlet-style controller, but also an electrical haptic pulse that aims to simulate manipulating virtual objects.

Image courtesy AI SILK

Weighing in at 380g (~13.5oz), or about the weight of two Quest 2 controllers with batteries included, Lead Skin is said to measure the current impedance from the expansion and contraction of the fabric within, and then through deep machine learning-developed algorithms “understand the intended actions from glove wearers’ physical finger movements,” AI Silk says in a press statement.

Image courtesy AI SILK

Electrical pulses are sent to both the palm and fingers, which is a decidedly shocking departure from the standard haptic motor buzzes that we’ve seen in other VR gloves.

While specs are still thin on the ground, the flashy promo video is certainly something to behold, if not only for its peek inside the Japanese idol industry, which regularly host handshake events. It’s not clear how resistance training and face-punching fit into Lead Skin’s actual feature set, but the spot certainly looks electrifying, as our protagonist is recognized as the idol’s online training partner.


AI Silk’s Lead Skin haptic gloves will debut at CES 2023 between January 5-8, where we’ll have feet on the ground. Check back soon for more info on Lead Skin and all of the latest AR/VR tech out there at the biggest trade shows of the year.

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