Has anyone ran into this?
I'm on Unity 5.1.1p3, Cardboard Unity Integration v0.5 (5/28/2015) and an iPhone 5 running iOS 8.3 (12F70).
I made a game that uses Cardboard and on an iPhone 6 the screen renders as expected: two offset cameras. On an iPhone 5 however, while the screen does show the 2 viewport masking and the distortion correction, it's actually a single camera that is being rendered, defeating the purpose of Cardboard.
Here's what I mean. This is the iPhone 6, as expected:
And this is the iPhone 5, which is wrong:
Some extra info:
The iPhone5 can only use GLES2. It doesn't support ES3 or Metal. But what I did notice is that if I make a build for GLES2 the first time the app runs on the device (be it iPhone 6 or 5), when the Cardboard camera gets enabled, the app crashes:
If then I quit the app and start it again from the phone without it being hooked up to Xcode, on the iPhone5 I get the wrong rendering I've shown while in the iPhone 6 the app just crashes again. And if instead I make my build with automatic graphics API detection, what happens is that on iPhone6 it goes to Metal mode and so it works fine and on the iPhone5 it goes to GLES2 mode which, as stated before, crashes if attached to Xcode but otherwise just runs only that with the wrong rendering.