Apple's WWDC event is greatly anticipated in the Apple developers community every year. When it comes to the augmented reality world, we only got a quick glimpse of what is new in yesterday's keynotes. Here is an overview of what we know so far, with more details to unravel this week after the engineering sessions. You can find a list of AR recommended sessions to check out from this year's WWDC at the end of the article.
ARKit helps developers build powerful augmented reality experiences for millions of users worldwide. Here are the main 3 new features announced this year:
The new Depth API powered by the LiDAR scanner available on the iPad Pro gives developers access to use per-pixel depth information about the surrounding environment. This will make occlusion and placement of 3D content even more realistic. Some examples of how this could be used:
Taking more precise measurements
Applying effects to a user’s environment
Taking body measurements for more accurate virtual try-ons
Testing how your room will look like with different wall colors
3D depth map created using the output from the Depth API:
Image source: Apple Platforms State of the Union
Available on iPad Pro 11-inch (2nd generation) and iPad Pro 12.9-inch (4th generation)
A new session configuration is available for tracking geographic locations: ARGeoTrackingConfiguration which will combine GPS, the device's compass and world-tracking features to enable back-camera AR experiences to specific locations.
Location anchors (ARGeoAnchor) will be used to specify the latitude, longitude, and optionally, altitude. For example, when you would be close to a landmark, the app will reveal a virtual signpost with historical facts. What makes me really excited about this new feature is the ease of developing AR street routes now by placing a group of location anchors.
To place location anchors with precision, GPS data is not sufficient. ARKit will download batches of imagery that depict the physical environment in that area and assist the session with determining the user’s precise geographic location.
This localization imagery captures the view mostly from public streets and routes accessible by car. As a result, geo tracking will be available in limited cities and locations where Apple collected localization imagery in advance.
Requires iPhone XS, iPhone XS Max, iPhone XR, or later. Available in select cities and areas
Expanded Face Tracking Support
Face tracking will now be supported on the front-facing camera on any device with A12 Bionic chip and later. Face filters are a big success nowadays on popular apps like Instagram, Snapchat or TikTok so opening up this feature to more devices is a great addition. You will be able to track three faces at once using the TrueDepth camera.
Introduced at last year's WWDC, RealityKit is Apple's rendering, animation, physics, and audio Swift framework built from the ground up with augmented reality in mind. Latest improvements include video textures, scene understanding using the LiDAR scanner on iPad Pro, Location Anchors, face tracking, and improved debugging tools.
Video textures can now be added to any part of a scene in RealityKit, bringing objects, surfaces, and even characters to life. Example use cases of this new feature:
Animated virtual TV screens with rich videos
Making virtual characters smile
Improved Object Occlusion Rendering
The LiDAR scanner comes with many powerful use cases and being able to place virtual objects more accurately, like under a table or behind a wall, it will support a much more seamless AR experience. A quick glimpse of how this will work was presented in the Platforms State of the Union keynote and it showed how crisp the definition is.
Video source: Apple Platforms State of the Union
Location Anchoring, extended support for face tracking and improved object occlusion rendering are available for apps using RealityKit automatically due to its native ARKit integration.
Universal Scene Description is the technology behind USDZ, the AR focused file format introduced by Apple at WWDC 2018. A new proposed schema and structure updates to the standard will help us with building AR content with interactive properties like anchoring, physics, behaviours, 3D text and spatial audio.
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