• addresses and issue where updateVideoOutputSettings was being called after adding an input instead of when initially setting up the video output causing frame drops and delays

The ARKit mode is in beta, so it is not compiled by default without the inclusion of the Swift compiler flag USE_ARKIT. Apple will reject apps that link ARKit and do not use it. To try it out, setup the AppDelegate to load the MixedRealityViewController class and include the xcode build settings flag.

If you use Cocoapods, you can include -DUSE_ARKIT with the following podfile addition or by adding it to your Xcode build settings.

  installer.pods_project.targets.each do |target|
    # setup NextLevel for ARKit use
    if target.name == 'NextLevel'
      target.build_configurations.each do |config|
        config.build_settings['OTHER_SWIFT_FLAGS'] = '-DUSE_ARKIT'
      end
    end
  end