We are linking an apple ARkit for live facial capture during a performance. We will also be live capturing the body with xsens at the same time. The issue we are having is that your faceARsample2 in the iphonex is not opening (it closes right away) as well as the ARkit app (all versions) in the iphonex. How do you suggest we get these apps to work? have there been important updates or changes with compatibility? How do you suggest we set up this live facial capture system the best way possible, as I am sure there will be more questions along the process? We will be using the ARkit with an iphonex and will be using unreal version 4.22 for the project. Please give us any information you can for this to go smoothly! We only have 2 days to finalize and are in a bit of a time crunch.
When an app closed immediately after start, the reason is often, that some referenced asset is missing.
Go to the Project Settings under Packaging, enable “Cook everything in the project folder” and disable “Exclude editor content” in case it is on.
Also in the Project Settings check in Maps&Modes, if the right default maps are set and if a Game Instance Class is set at the bottom. (These might sometimes vanish, if renamed in the content browser)
How do you deploy to the device? Definitely use File > Package Projekt > iOS and save the app (ipa-file). Only then is your whole project cooked and packaged. Pressing Play in the editor is only to test the current level. Many assets are not cooked for iOS this way.
After packaging an ipa-file, you can install it to your device using XCode, under Window > Devices and Simulators, the rest is easy to find out.
If that does not fix it, it might be due to wrong XCode-Version.
If you are using unreal version 4.22, make sure you have XCode10 installed.
It is not made for the latest XCode11.
You can download XCode10 and install it to another folder. Make sure to switch to that Version for unreal to use it.
You can install an older version of Xcode and keep the current.
To select which XCode should be used by unreal, open macOS terminal and use this command:
sudo xcode-select -switch PathToYourDesiredXCodeVersion
for example:
sudo xcode-select -switch /Applications/XCode10/Xcode.app
Or try this alternative: An alternative to FaceARSample for Realtime Facial Animation - Face Cap + OSC Plugin - Animation - Unreal Engine Forums
Good Luck!