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Won't Fix
Votes
1
Found in
2018.4.0f1
2019.1.0a1
2019.2.0a1
2019.2.2f1
2019.3.0a1
Issue ID
1181395
Regression
No
[Mobile]Extreme Editor Slowdown/Instability on Iris Pro GPU 1536 MB
How to reproduce:
1. Download the project from the link provided in the Edit section
2. Make sure that iOS or Android platform is selected in Build Settings
3. Inspect the scene view (zoom in, zoom out, rotate, pan)
Actual: Editor Slowdown on iOS or Android platform
Reproducible with: 2018.4.8f1, 2020.1.0a4
Note:
-Could not test on 2017.4 because the project crashes
-See the Edit section for more notes
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Resolution Note (2020.1.X):
At this point, we believe that only this particular GPU series is affected. GPUs with similar amounts of on-board memory and of a similar age do not exhibit this behaviour, so there is reason to believe that this is a driver bug on Apple's side. A Radar has been raised, however, given the age and limited modern-day usage of this hardware, we cannot guarantee that this will be addressed in a future OS update.
The workaround is to uncheck Metal support in the Editor, which should have no negative effect on the workflow for iOS/Android. Unfortunately, we do not believe there is a way for us to workaround the problem from the Unity code side.