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The QualitySettings.streamingMipmapsRenderersPerFrame is not existed on iOS device.

Discussion in '2018.3 Beta' started by watsonsong, Nov 22, 2018.

  1. watsonsong

    watsonsong

    Joined:
    May 13, 2015
    Posts:
    555
    I modify the QualitySettings.streamingMipmapsRenderersPerFrame when the game quality is change. It throw an exception:
    Code (CSharp):
    1. called non-existent method System.Void UnityEngine.QualitySettings::set_streamingMipmapsRenderersPerFrame(System.Int32)
    Is this property missing on mobile device?
     
    watsonsong, Nov 22, 2018
    #1

  2. LeonhardP

    LeonhardP

    Unity Technologies

    Joined:
    Jul 4, 2016
    Posts:
    3,136
    It's not possible to change this while the system is running, as it will be using internal buffers that need resizing.

    It's set to read only at runtime and writable in the editor only.
     
    Last edited: Nov 22, 2018
    LeonhardP, Nov 22, 2018
    #2

  3. watsonsong

    watsonsong

    Joined:
    May 13, 2015
    Posts:
    555
    But the streamingMipmapsRenderersPerFrame can be changed when I switch quality level.
    The quality level configuration can not add to asset bundle so I can not change it by update the assetbundle for mobile apps. I write a scriptable object to store all quality settings and store it in asset bundle so I can change the quality setting without require the user download a new apk or ipa file.
     
    watsonsong, Nov 22, 2018
    #3

  4. lyndon_unity

    lyndon_unity

    Unity Technologies

    Joined:
    Nov 2, 2017
    Posts:
    66
    It sounds like you might be calling QualitySettings.streamingMipmapsRenderersPerFrame directly ?
    Can you avoid that ?
    Do you need this value to be different when you switch quality level?

    If you had various quality settings in the original app you could call QualitySettings.SetQualityLevel to select the active one. This method should not throw an exception.
     
    lyndon_unity, Nov 22, 2018
    #4

  5. watsonsong

    watsonsong

    Joined:
    May 13, 2015
    Posts:
    555
    Yes, there is no need to change this streamingMipmapsRenderersPerFrame for each quality level. I just notify when I change the quality level, this value can be changed, so I think it should be changed by code directly.

    What I want to do is putting the whole quality settings into asset bundle, do I can hotfix the quality settings when necessary without reinstall the game.
     
    watsonsong, Nov 23, 2018
    #5

  6. lyndon_unity

    lyndon_unity

    Unity Technologies

    Joined:
    Nov 2, 2017
    Posts:
    66
    Do you have a simple reproduction example you can share?
     
    lyndon_unity, Nov 23, 2018
    #6