I have an issue with my ARKit Unity app on iphone 8/8Plus where the textures seem to be moving around while rendering a model. This doesnt happen on iphone 7/7Plus. I'm wondering if this is an ARKit issue or a Metal issue. I've attached a video. Anyone seen this before? I'm using iOS 11.0.1 and Unity 2017.1 and the bitbucket head of unity-arkit as of today. Thanks.
So the geometry of the dress is two sided and very thin. I believe there is some z fighting happening. Since this doesn’t happen on iPhone 7, I’m left thinking that there is a loss of floating point precision in the graphics api (metal 2)
This was fixed and back ported to 5.5. Please update to the latest patch release of unity that you are using. It was a fast math issue in the shaders that was expressed by the new hardware.