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Fixed in 2021.2.X

Fixed in 2020.3.X, 2021.1.X

Votes

0

Found in

2018.4

2018.4.30f1

2019.4

2020.2

2021.1

2021.2

Issue ID

1307140

Regression

No

[Textures] ASTC compressor not deterministic between CPUs (causes asset bundles to diff between e.g. Mac & Linux builds)

Texture

-

How to reproduce:
1. Open the user attached project (Asset_Bundle_Diff_Build.zip) on Linux
2. Open the "AssetBundles" window if it isn't open
3. Open the "Build" tab and ensure that the build target is set to "Android"
4. Press the "Build" button and wait for the build to complete
5. In the system's file manager navigate to and open "[Project Path]/AssetBundles/Android/dlc/frames/igloo.ab.manifest" file in any text editor
6. Note the CRC number listed on the second line of the opened file
7. Repeat steps 1 to 6, but on either Mac or Windows

Expected result: the generated CRCs are identical
Actual result: the generated CRCs are different

Reproducible with: 2018.4.30f1, 2019.4.18f1, 2020.2.2f1, 2021.1.0b3, 2021.2.0a2

Note: Tested to be reproducible on Ubuntu 18.04 and Windows 10

  1. Response avatar

    Resolution Note (fix version 2021.2):

    Fixed in 2021.2.0a10

  2. Response avatar

    Resolution Note (fix version 2021.1):

    Fixed in 2021.1.9f1

  3. Response avatar

    Resolution Note (fix version 2020.3):

    Fixed in 2020.3.13f1

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