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Under Consideration for 2021.3.X, 2022.3.X, 2023.3.X, 6000.0.X
In Progress in 6000.1.X
Votes
0
Found in
2021.3.45f1
Issue ID
UUM-87740
Regression
No
The same PSB/FBX/PNG file returns a different asset hash when imported on a machine with different CPU architecture
Reproduction steps:
1. Open the attached “ASDQWE” project
2. In the Project Window, select the "Assets/Textures/Chippy_Puppy_Final.psb" file
3. From the top menu, select Unity Support > Log Asset Dependency Hash
4. Observe the Console Window log
5. Repeat 1 - 4 steps with another machine with a different CPU architect (e.g. MacBook Pro Intel and M1)
Expected result: The logs display the same hash values for both machines
Actual result: The logs display different hash values for both machines
Reproducible with: 6.0.9 (2021.3.43f1)
Reproducible on: MacOS 14.6.1 (Intel, M1 (user’s))
Not reproducible on: No other environment tested
Note: The issue was not locally reproduced by CQA. We only observed the hash values differing for different devices (MacBook Pro 2019 (Intel) and Mac Studio 2022 (M2))
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Resolution Note:
Having float determinism across architectures isn't currently in place unfortunately, it's a limitation in our current system