RE: "Right now, editing the depth of a photo is limited to images that have already been captured, but starting in
iOS 12.1, it will work in real time too. "
OMG, are you saying they don't already have that ???
There's at least one third-party app out there, possibly more, that's had Live Preview Depth Control for 6+ months !
More concrete evidence that AAPL does in-deed have a Complete & Total Stranglehold on App Discovery !
It's truly surprising that AAPL has been able to hold onto it's iOS App Store "monopoly" for as long as it has !
BTW, Portrait Mode is simply based-upon the capture & processing of "Depth Data Maps" in addition to the normal RGB camera processing steps ... the resolution & capture rate of such "maps" is currently fairly limited with internal hardware.