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Unique shadows are broken in 5.5

Discussion in '5.5 Beta' started by Muuuuo, Sep 17, 2016.

  1. Muuuuo

    Muuuuo

    Joined:
    Apr 16, 2015
    Posts:
    57
    Hi,

    Unique Character Shadows https://www.assetstore.unity3d.com/en/#!/content/39921 example project asset is broken in 5.5. The sampling shader gets called and all but the attenuation value it returns seems to be 0 almost everywhere. 5.5 introduced new depth stuff for directional lights and I'm not sure if this affects the sampling or the rendering of the shadow texture or something...

    I tried playing around with the pcf sampling part of the shader but couldn't get any useful data out. I'm also not sure how should I debug the shadowmap texture being rendered as the preview is completely black.

    This is one of the most valuable assets in our project so any help would be appreciated.

    Example pic of how the shadows are broken attached.
     

    Attached Files:

    Muuuuo, Sep 17, 2016
    #1
    looki666 likes this.

  2. Muuuuo

    Muuuuo

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    Looking over this again the shadow texture inspector preview is red in 5.4 while it's black in 5.5. The camera render function seems to get called normally but I couldn't get it to render anything useful even after fiddling around. Changing the render texture creation parameters didn't do anything and trying to get the camera to render normal game content didn't work either for some reason, although it's not my script so it's possible I've overlooked something.
     
    Muuuuo, Sep 18, 2016
    #2

  3. LeonhardP

    LeonhardP

    Unity Technologies

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    Jul 4, 2016
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    3,136
    Hi Kuura,
    Unfortunately assets packs are not supported in Betas, since they change too fast and often. Once the final is released, our content team will check the bigger packs and update them.
     
    LeonhardP, Sep 19, 2016
    #3
    Quast likes this.

  4. Muuuuo

    Muuuuo

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    Thank you for the reply, that's reassuring to hear. I hope this asset is considered one of the bigger packs.

    Still, if anyone has input on the issue that would be appreciated.
    5.5 has various bugfixes and features that are driving us to migrate early and I'm also personally interested in what's causing the problem.
     
    Muuuuo, Sep 20, 2016
    #4

  5. torbjorn

    torbjorn

    Unity Technologies

    Joined:
    Jun 25, 2015
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    Hi @Kuura, great that you're finding use for the package!

    The reason it has stopped working in 5.5 is that it's not aware of the new reverse depth precision improvements that are in 5.5.

    As LeonhardP already said, we normally don't update these during alpha/beta cycles, as keeping up with changes there is just too labour intensive.

    That being said, if you're willing to try a highly unofficial 5.5 fix, you can grab this package: https://drive.google.com/file/d/0ByY3rAMAS1c7VThneGRtMXZacmc/view?usp=sharing

    ("works for me" 5.5b4 dx11. will not work for 5.3/5.4. a proper package update should happen around 5.5 shipping)
     
    torbjorn, Sep 21, 2016
    #5
    unity_IpxdANggCs1roQ and Pawige like this.

  6. Muuuuo

    Muuuuo

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    Your fix works great!
    Seems like the fix was literally just reversing the z component of the projection matrix. I should probably update my matrix knowledge. Thank you for taking time to look into this.
     
    Muuuuo, Sep 21, 2016
    #6

  7. wdw8903

    wdw8903

    Joined:
    Apr 2, 2015
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    Hello, I have tried unique shadows from asset store with unity 5.4 and above post one with 5.5. Both seems not work for me. I can't see any difference with normal shadow. Can you post a screenshot, @Kuura ? Thank you.
     

    Attached Files:

    wdw8903, Nov 13, 2016
    #7

  8. Muuuuo

    Muuuuo

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    I don't have the demo project anymore, but my best guess would be make sure you're using the asset correctly and try playing around with the values, remember to set a focus etc. The reversed Z should be the only issue affecting 5.4 -> 5.5. The shadows are working great here on 5.5b10.
     
    Muuuuo, Nov 13, 2016
    #8

  9. Kronnect

    Kronnect

    Joined:
    Nov 16, 2014
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    2,906
    Hi there,
    Regarding the new reversed z-buffer introduced in Unity 5.5 is there any chance UNITY_SAMPLE_DEPTH macro will be modified so it takes into account this?
    I know Linear01Depth and LinearEyeDepth function will automatically handle this for us, but what about the above macro?
     
    Kronnect, Nov 13, 2016
    #9

  10. LeonhardP

    LeonhardP

    Unity Technologies

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    Could you please create a dedicated thread for your question?
     
    LeonhardP, Nov 15, 2016
    #10

  11. Kronnect

    Kronnect

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    Done.
     
    Kronnect, Nov 15, 2016
    #11
    LeonhardP and neoshaman like this.

  12. torbjorn

    torbjorn

    Unity Technologies

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    @wdw8903 did you try entering playmode in the included sample scene?
     
    torbjorn, Nov 16, 2016
    #12

  13. wdw8903

    wdw8903

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    Apr 2, 2015
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    Sorry for the late reply, too busy and away from forum these days.
    The shadow change when I enter play mode, never notice this before. Great, now my character will have great shadow. thanks for the reply!
     
    wdw8903, Nov 30, 2016
    #13