Arcore-unity-sdk: Instant Preview should work the same as on-device

[fredsa]

Instant Preview does not currently support all the APIs & features that ARCore supports on-device.
This issue tracks add these missing capabilities, which include a mix of feature requests and bugs.

[fredsa]

1. Different behavior of camera on device and in Instant Preview (#327)
2. Add Instant Preview support for development machines with integrated GPUs (#399)
3. Add Instant Preview support for development machines with external GPUs (#416)
4. Support for toggling AUTO_FOCUS mode on/off (#422)
5. Plane finding and light estimation can not be disabled in instant preview mode (#440)
6. Support for Augmented Images (#403)
7. Correctly handling of display orientation: at app startup, at runtime (#252)
8. Respect device orientation restrictions in player settings
9. How game object transforms are updated at runtime (#327)
10. Support for resizing game view (#287)
11. Works well on all ARCore Supported Devices, including:
    
    
    
    • Xperia XZ2 Premium (#415)
    
    
    • Galaxy Note 9 (#427)
    
    

[MichaelHazani]

hi! been a few months - any update on augmented image support in instant preview?

[lorenaweder]

I'd also like to know if there's an update on the augmented image support. Any news? Removing this feature (because this used to be a feature in older versions of the sdk, at least in 1.2 for sure) made the workflow much slower.

[jwlondon98]

any update on using augmented images in instant preview? thanks