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Graphics Rendering Issue with the CanvasRender and older OpenGL devices. (Case 725989)

Discussion in '5.2 Beta' started by Stephan-B, Sep 9, 2015.

  1. Stephan-B

    Stephan-B

    Unity Technologies

    Joined:
    Feb 23, 2011
    Posts:
    2,269
    I am running into an issue in Unity 5.2 where text rendered using the TextMeshPro component for the New UI using any of its shaders doesn't render correctly on older OpenGL ES 2.0 / 3.0 devices. However, using the same shader / scene using Metal on iOS for instance works fine.

    Using the same set of shaders with the TextMeshPro component that uses the mesh renderer works fine on all of those devices in OpenGL ES 2.0, 3.0 and Metal (where the device is capable).

    I have filed the following bug report which includes a Repro Project and Scene. (Case 725989).
     
    Stephan-B, Sep 9, 2015
    #1
    podonne5 likes this.

  2. Tim-C

    Tim-C

    Unity Technologies

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    Feb 6, 2010
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    Investigating.
     
    Tim-C, Sep 9, 2015
    #2
    brianchasalow, Spellbook and podonne5 like this.

  3. podonne5

    podonne5

    Joined:
    Aug 26, 2014
    Posts:
    2
    Thanks Stephan and Tim, currently this is the last issue that is preventing me submitting my game to the appstore so any progress/solution would be greatly appreciated.
     
    podonne5, Sep 9, 2015
    #3

  4. luniac

    luniac

    Joined:
    Jan 12, 2011
    Posts:
    585
    THis is an issue for me as well.
     
    luniac, Sep 9, 2015
    #4

  5. SketchWork

    SketchWork

    Joined:
    Jul 6, 2012
    Posts:
    244
    Having the same issue. Good luck with the investigation @Tim C :)
     
    SketchWork, Sep 9, 2015
    #5

  6. tellemstevedave

    tellemstevedave

    Joined:
    Jul 15, 2013
    Posts:
    19
    Issue for me too. Shader won't render correctly on ipod touch
     
    tellemstevedave, Sep 9, 2015
    #6

  7. Stephan-B

    Stephan-B

    Unity Technologies

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    Feb 23, 2011
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    Also had a user report the same issue with PS Vita.
     
    Stephan-B, Sep 9, 2015
    #7

  8. brianchasalow

    brianchasalow

    Joined:
    Jun 3, 2010
    Posts:
    204
    @Tim C the issue doesn't have anything to do with old devices, FYI. I'm on an iPhone 6, GLES 3.0 and it's rendering white squares. See this image which may help you, extracted from the Xcode frame debugger. Looks to be related to the mipmapping chain:
     

    Attached Files:

    brianchasalow, Sep 10, 2015
    #8

  9. Stephan-B

    Stephan-B

    Unity Technologies

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    Feb 23, 2011
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    Thanks for looking into this Tim.

    Any luck finding the source of this issue?
     
    Stephan-B, Sep 10, 2015
    #9
    brianchasalow likes this.

  10. Spellbook

    Spellbook

    Joined:
    May 21, 2015
    Posts:
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    Hopefully a resolution or workaround soon? Production and deployment is at a dead stop because of this.
     
    Spellbook, Sep 10, 2015
    #10
    luniac and brianchasalow like this.

  11. actraiser3

    actraiser3

    Joined:
    Sep 11, 2014
    Posts:
    28
    Also have only white squares on various mobile devices instead of Text when using Textmesh Pro since switching from 5.1 latest patch release to 5.2 final, namely on iPad 2 and Samsung Galaxy Tab S. Rendering works fine on iPhone 5S though. I really hope a patch release for 5.2 will provide backward compatibility.

    -act
     
    actraiser3, Sep 10, 2015
    #11