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Third Party Issue
Votes
0
Found in
2018.4
2018.4.19f1
2019.4
2020.1
2020.2
Issue ID
1300142
Regression
No
[iOS] Subsequent ShaderVariantCollection.WarmUp() shader compiling takes longer when using iOS 14 devices
Reproduction steps:
1. Download and open the attached "ios14ShaderWarm.zip" project
2. Build and deploy the project
3. Close the app
4. Deploy the project
5. Observe the Xcode console window
Expected result: Shader warmup compiling takes less than 1 second
Actual result: Shader warmup compiling takes longer than 1 second
Reproducible with: 2018.4.29f1, 2019.4.17f1, 2020.1.17f1, 2020.2.1f1
Could not test with: 2021.1 (Build errors: "UnityEditor.BuildPlayerWindow+BuildMethodException: 2 errors
at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer")
Reproduced with: iPhone 12 Pro (iOS 14.2.1)
-
IainTTGilfeather
May 20, 2021 08:55
We've discovered that this only happens when playing from Xcode, Launching from device after an initial run does a quick shader warmup.
So this is no longer a bug for us.
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Resolution Note (2021.2.X):
Thais is the issue with running from xcode on ios14. Apple confirmed it will be fixed in some upcoming version