The situation is thus:
- We are using unity 5.2.1, though the issue occurred on 5.2.0 as well.
- We have an app using water4 (with gerstner displace disabled,) that works perfectly on iOS8 installed on an ipad Air2.
- However after upgrading the device to iOS9 the water4 has visual errors, symptoms include:
- Acting as if it’s out of clipping plane range when the camera is far away and the water has an object behind it. IE being invisible when it shouldn’t be.
- Jagged borders where it meets the shore which become more jagged the further away you’re viewing the water from and generally look awful when a camera zooms in/out on them.
- Generally these two issues combine to make water 4 radically different looking on iPad then it is on mac when viewed from a distance. (When it can even be seen at all).
I’ll be filling a unity bug for this as soon as I can put a decent demonstration project together but in the meantime I was wondering if anyone’s found a workaround.
Using OpenGL instead of metal does fix the water, however it creates several other issues in our project such as materials turning various amounts of black (depending on distance from camera) and understandably low frame rates, so I can't really use that as a solution sadly.
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