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Question by fred_gds · Feb 04, 2017 at 07:31 AM · iosbuilderror messagexcodegpu

Xcode Error: IOAF Code 3

Hey,

Whilst testing my game on my iPhone I got the following Error in xCode:

Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Error (IOAF code 3)

At first it didn't seem to affect my game much but then at one point it completely freezed it and i just get a shaky image that looks like the game keeps switching between the two same frames. Anyone any idea where that might come from and how to fix it?

BTW: I didn't add any new shaders or modify the existing ones during the last build...

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Answer by JBPrime · Mar 29, 2017 at 09:12 PM

I ran into this error, and what ended up fixing it was switching the quality level for iOS from "fantastic" back down to the default "simple". You may be able to tweak one of the particular settings and achieve the same result. I had this happen on Unity 5.6.0 beta 11.

Edit: I did some further testing, and it appears to specifically be antialiasing causing my problem. I can leave the rest of the fantastic settings in place, but the IOAF Code 3 error only goes away if I turn off antialiasing.

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avatar image night-yan · Dec 27, 2017 at 08:35 AM 0
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Staill have this issue with 5.6.4p3 on iPad Air 2. And Disable AA still broken !!! @JBPrime

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