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Feedback iOS: Changed default texture compression format from PVRTC to ASTC.

Discussion in '2021.2 Beta' started by Neonlyte, Apr 7, 2021.

  1. Neonlyte

    Neonlyte

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    Oct 17, 2013
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    505
    iPhone 5s and iPad Air (1st gen) are the only devices that do not support ASTC and is still upgradable to iOS 12. In my awareness, 2021.1 bumped the min version to 12. Will Unity 2021.2 change the minimum iOS version to 13 so that it explicitly cuts off support for iPhone 5s, since no public change logs of 2021.2 mentioned any min iOS version increase?

    If Unity still expects to support iOS 12, setting the texture format default to ASTC could cause issues on iPhone 5s, even though a diminishingly small user group, could make unsuspecting devs publishing their apps with iOS 12 support but with ASTC texture that the old device does not support.
     
    Neonlyte, Apr 7, 2021
    #1

  2. Alexey

    Alexey

    Unity Technologies

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    >>Will Unity 2021.2 change the minimum iOS version to 13
    no, but i would say it is safe to assume we will update the minimum soon
     
    Alexey, Apr 7, 2021
    #2
    Neonlyte likes this.

  3. Aras

    Aras

    Unity Technologies

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    Nov 7, 2005
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    Yes ASTC is not supported on A7 chip devices, so if you're still targeting that, then using PVRTC might still be viable. It's possible to switch everything to default to PVRTC in iOS player settings if you need it: Screenshot 2021-04-08 at 09.14.11.png

    However, A7 right now seems to be about 2% of the market. Games made with Unity 2021.2 are realistically probably a year or two away from shipping, by then A7 market share will be either even lower or non-existent at all.
     
    Aras, Apr 8, 2021
    #3
    JoNax97, dzamani, Neonlyte and 2 others like this.

  4. Peter77

    Peter77

    QA Jesus

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    In this case Unity decompresses the ASTC texture on-the-fly and uses the uncompressed version instead?
     
    Peter77, Apr 8, 2021
    #4
    Neonlyte likes this.

  5. florianpenzkofer

    florianpenzkofer

    Unity Technologies

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    Sep 2, 2014
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    Yes
     
    florianpenzkofer, Apr 8, 2021
    #5
    Neonlyte and Peter77 like this.

  6. ZimM

    ZimM

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    Dec 24, 2012
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    Is there a reason there is no option to make ETC2 the default in player settings? It massively saves on space due to Crunch.
     
    ZimM, Dec 7, 2021
    #6
    chrismarch likes this.

  7. chrismarch

    chrismarch

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    Jul 24, 2013
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    I'd also like to know why this is the case, or if ETC2 + crunch will be available in the override drop down, as it seems a lot more practical for games with a lot of assets to download.
     
    chrismarch, Mar 11, 2022
    #7

  8. SuperRaffles

    SuperRaffles

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    Jul 25, 2019
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    I'd also like to know how to make iOS use crunched textures by default, like Android.

    Do we really have to go into the override panel per texture and change it to crunch? For potentially hundreds or thousands of textures :D
     
    SuperRaffles, Mar 27, 2022
    #8

  9. florianpenzkofer

    florianpenzkofer

    Unity Technologies

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    Sep 2, 2014
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    As far as I know we don‘t have a global setting on any platform to prefer Crunch. If you select ETC in BuildSettings or PlayerSettings it should not use Crunch. Am I missing something?
     
    florianpenzkofer, Mar 27, 2022
    #9

  10. jesliwang

    jesliwang

    Joined:
    Apr 1, 2013
    Posts:
    4
    Don't find this setting ON Unity 2020.3. But The Manual Say IT HAS!!! DO I MISS SOMETHING?
     
    jesliwang, May 5, 2022
    #10

  11. AcidArrow

    AcidArrow

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    May 20, 2010
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    It's a 2021 feature.
     
    AcidArrow, May 5, 2022
    #11