iOS Antialiasing performance impact too large compared to Android

Unity Engine
,
1

I am testing AA on iOS. I am making a Google Cardboard VR app so AA is pretty important if it can be used.
On Android, turning on AA has very little impact. I tested on samsung s7 edge and it’s just a few fps (3 or 4 frames) drops from original 30 fps. (The cardboard cannot use multithreaded rendering, so it’s slow under a 100k triangle scene, rendered once for each eye)
However, on iPhone 6S Plus, AA downs my app from 58 fps (same 100k triangle scene with 2 eyes) to 30 fps, at any level of AA (2X, 4X or 8X).

For a simple scene with 300 triangle:
Android: 60 (no aa) → 60 (aa)
iOS: 60 (no aa) → 35(aa)

Is there a way to reduce the performance impact of AA on iOS?

2

hey, sry for necroing the old thread. But how did you even manage to get AA working on ios. It is completely ignored for me (2017.2.0p4) and latest gvr sdk(GoogleVRForUnity_1.110.0). It is working fine on android.