ARCore SDK for Unity v1.18.0

Upcoming breaking change affecting previously published 32-bit-only apps

In August 2020, Google Play Services for AR (ARCore) will remove support
for 32-bit-only ARCore-enabled apps running on 64-bit devices. Support for
32-bit apps running on 32-bit devices is unaffected.

If you have published a 32-bit-only (armeabi-v7a) version of your
ARCore-enabled app without publishing a corresponding 64-bit (arm64-v8a)
version, you must update your app to include 64-bit native libraries before
August 2020. 32-bit-only ARCore-enabled apps that are not updated by this time
may crash when attempting to start an augmented reality (AR) session.

To learn more about this breaking change, and for instructions on how to update
your app, see https://developers.google.com/ar/64bit.

Known issues

• Apps may crash when calling Application.Quit(). This affects all ARCore app. See details in Unity's Issue Tracker.
• Issue 141500087: When using Android Emulator x86_64 system images on macOS with ARCore SDK 1.16.0 or later, Google Play Services for AR will crash. As a workaround, use an x86 system image.

Breaking & behavioral changes

• targetSdkVersion inside the ARCore Android Archive (AAR) file has been updated to API level 29. Specifying a targetSdkVersion in your project's build.gradle or AndroidManifest.xml will override the ARCore value.

New APIs and capabilities

• Added new Depth API. Check the list of ARCore supported devices to see which devices support the Depth API.
  • New DepthMode enum type.
  • New DepthMode property in ARCoreSessionConfig to enable Depth in ARCore session.
  • Added Session.IsDepthModeSupported() to check whether the depth mode is supported on the device.
  • Added Frame.UpdateDepthTexture() to update the input texture using the latest depth data from ARCore.

Deprecations

None.

Other changes

• Added CloudServiceResponse.ErrorTooManyCloudAnchors enum value.
• The HelloAR sample now includes support for occlusion using the ARCore Depth API.
• Updated C# style for non-public variables and methods. For example, private float m_Foo now reads private float _foo and private void _Bar() now reads private void Bar().

Bug fixes

• Fixed Cloud Anchors Privacy link in the CloudAnchors sample app. The incorrect link now redirects to the correct link, so existing apps with the incorrect link don't need to be updated.