Hi,
I would try to mirror the camera image vertically. You can do it from code only.
In YOUR_PROJECT_PATH/Plugins/ARToolkitPlugin/Source/ARToolkitPlugin/Private/ARToolkitDevice.cpp
Find the following line:
NSString *vconf = [NSString stringWithFormat : @“%@ %@ %@ %@ %@”, @“-format=BGRA”, @“-fliph”, @“-flipv”, @“-preset=cif”, @“-position=rear”];
change to:
NSString *vconf = [NSString stringWithFormat : @“%@ %@ %@ %@ %@”, @“-format=BGRA”, @“-fliph”, @“-noflipv”, @“-preset=cif”, @“-position=rear”];
I think it will fix your issue!