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VFX effect not showing on android

Discussion in 'Universal Render Pipeline' started by CrazYunderscore, Jan 21, 2020.

  1. CrazYunderscore

    CrazYunderscore

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    So, im making project using Unity 2019.2.18f1 , and have problem with VFX effects, in editor everything looks fine, effects are displayed without problem but in android build, they are not showing up.
     
    CrazYunderscore, Jan 21, 2020
    #1

  2. aleksandrk

    aleksandrk

    Unity Technologies

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    Hi!
    What device are you running on?
    Does it say anything in the logcat?
     
    aleksandrk, Jan 23, 2020
    #2

  3. Cec

    Cec

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    Hi,
    I have same issue with Unity 2019.3.0f5 + VFX Graph 7.1.8 (URP 7.1.8)
    I have a simple VFX Graph placed in scene which is working flawlessly in editor as expected, but on android build, nothing is showing up.
    Here is the logcat
     
    Cec, Jan 28, 2020
    #3

  4. aleksandrk

    aleksandrk

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    01/28 10:12:37.287 15699 16234 Debug Unity: -------- Shader compilation failed
    ...
    01/28 10:12:37.297 15699 16234 Debug Unity: 0:73: S0059: 'local_size_x' qualifier value (1024) exceeds the maximum supported size (128).

    ^^ That's the reason :)

    I'll ping the VFX graph team
     
    aleksandrk, Jan 28, 2020
    #4

  5. aleksandrk

    aleksandrk

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    @Cec can you please make a bug report with this?
    You can try to work around by disabling particle sorting, but I'm not sure this would help.
     
    aleksandrk, Jan 28, 2020
    #5

  6. Cec

    Cec

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    Thanks for your feedback.
    I've filled a bug report (#1215087).
    Hope this will be fixed very soon.
     
    Cec, Jan 28, 2020
    #6

  7. soorya696

    soorya696

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    @Cec any update on this bug?
     
    soorya696, Mar 13, 2020
    #7

  8. soorya696

    soorya696

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    soorya696, Mar 13, 2020
    #8

  9. aleksandrk

    aleksandrk

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    This has been fixed on 2020.1.0a12. IDK what happened with a backport to 2019.3, will ask the VFX team.
     
    aleksandrk, Mar 13, 2020
    #9

  10. soorya696

    soorya696

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    @aleksandrk thanks for the response.
    Also please let me know about the update on backporting to 2019.3
     
    soorya696, Mar 14, 2020
    #10

  11. douglassophies

    douglassophies

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    I made a single bloom effect in a new project, upgraded to 2020.1.0b1 and tested a build to Android. Still no bloom on the build.
     
    douglassophies, Mar 15, 2020
    #11

  12. Cec

    Cec

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    The issue is not really fixed for me. In the same projet upgraded to 2020.1.0b3.3385 + URP 8.0.1 + Visual Effect Graph 8.0.1 the project is launching but no VFX are visible (whereas the other gameObjects are). I'm trying to catch a log in the logcat which would explain this, but still nothing conclusive.
     
    Cec, Apr 1, 2020
    #12

  13. Cec

    Cec

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    Ok. I figured it out.
    It seems that when not using Vulkan as renderer, the Visual Effects graph are not visible (Android at least). That's a huge drawback for ARFoundation since Vulkan is not (yet) supported with it. So no way to use Visual Graph with ARFoundation (with URP at least, I've haven't tested with HDRP).
    Tested on 2020.1.0b3.3385 + URP 8.0.1 + Visual Effect Graph 8.0.1

    I've filled a bug report here for those interested in the issue.
     
    Cec, Apr 2, 2020
    #13

  14. erikabar

    erikabar

    Unity Technologies

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    Hey, Visual Effects graph requires compute shader support, which means it should run on Vulkan and OpenGL ES3.1+
    I am not sure about ARFoundation support in VFX Graph in general, maybe worth pinging in https://forum.unity.com/forums/visual-effect-graph.428/
     
    erikabar, Apr 2, 2020
    #14
    Cec likes this.

  15. Cec

    Cec

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    Thanks for your respond.
    I'm totally agree with you. By the way, the project I've submited to bug report is actually not working with OpenGLES 3, but is working with Vulkan. (I didn't try checking the boxes "Require ES3.1" or "Require ES3.1+AEP" or "Require ES3.2").
    Maybe the issue is occuring in conjonction with another parameter ?

    I will try to reproduce it from a new basic project and come back to you.
     
    Cec, Apr 2, 2020
    #15
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  16. Cec

    Cec

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    Hi,
    I managed to find time to test a bit further.
    I tried to build with "Require ES3.1" : not working
    with "Require ES3.1+AEP" : not working
    with "Require ES3.2" : not working either.
    In my project, I have just a camera with a couple of VFX Graph in front of it. No Post processing, no ArFoundation, no extra packages...
    I stress that the couple of VFX Graph are prefabs taken from the Visual Effect Graph package samples without any transformation.
    So, from what I can see :VFX Graph is not working with OpenGLES 3 whatever the conditions.

    Maybe I've missed something. If someone could test as I did to confirm the issue...
    Thanks.
     
    Cec, Apr 2, 2020
    #16

  17. aleksandrk

    aleksandrk

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    @Cec what device are you trying this on?
    Does it, by chance, have a Mali GPU?
     
    aleksandrk, Apr 3, 2020
    #17

  18. Cec

    Cec

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    @aleksandrk
    Yes, that's right, I've tested on a Samsung Galaxy S9 which have a Mali GPU I believe.
     
    Cec, Apr 3, 2020
    #18

  19. aleksandrk

    aleksandrk

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    Then you're out of luck :)
    Mali GPUs have only read-only support for ComputeBuffers in stages other than compute and fragment, and there is no such concept as "read only SSBO" in OpenGL ES (there is such a thing on Vulkan), so they declare ComputeBuffers as unsupported.
     
    aleksandrk, Apr 3, 2020
    #19
    Cec likes this.

  20. Cec

    Cec

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    Out of luck indeed yes.
    So it means every single Samsung Galaxy S8/9/9+/10/10+ users cannot see Visual Graph Effects with ARFoundation (ARCore)... That undermines terribly the Visual Graph interest since not much android devices are ARcore capable yet. By the way, Samsung has a huge number of devices in use actually (and the Galaxy is described as the iPhone competitor).
    Very bad news... Thanks you Samsung.

    Anyway, a great (and sincere) thank you @aleksandrk for your respond. I couldn't have figured it out myself.
     
    Cec, Apr 3, 2020
    #20

  21. aleksandrk

    aleksandrk

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    Nope :)
    There's two versions of each device, one with a Mali GPU and one with an Adreno GPU, they are available on different markets. E.g. US always gets devices with Adreno, EU - with Mali.
     
    aleksandrk, Apr 3, 2020
    #21
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  22. Cec

    Cec

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    Yes. If you develop apps for only US, then the issue is not a problem... but there is not only US in the world. (By the way, I don't have access to US smartphone for test). So unfortunately, we have to level from below, and Visual Effect won't be used in our production. Too bad.
     
    Cec, Apr 3, 2020
    #22

  23. aleksandrk

    aleksandrk

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    Absolutely. Just saying that it's not all devices that are affected by this.
     
    aleksandrk, Apr 3, 2020
    #23

  24. soorya696

    soorya696

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    any update on this thread?
    When will be the VFX graph is going to work in URP on all android and iOS devices?
     
    soorya696, Jun 19, 2020
    #24

  25. aleksandrk

    aleksandrk

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    Not all Android devices support compute shaders, which are a requirement for VFX graph at the moment.
     
    aleksandrk, Jun 20, 2020
    #25
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  26. bali33

    bali33

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    I think you should officially state somewhere that VFX package it's not production ready for URP + mobile or at least officially write somewhere the limitations / requirements.
     
    bali33, Jul 2, 2020
    #26

  27. VladVNeykov

    VladVNeykov

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    Hi @SzooX and @Cec ,
    The VFX graph is production ready only for HDRP at the moment. Both URP and mobile support (for compute-capable devices) is planned, but still in development. This thread has more information.

    Please feel free to up-vote the URP integration and mobile support on our public roadmap to help us inform the development priorities.

    Hi @bali33 , completely agree, while we communicated that the VFX focus was on HDRP, we need to be more explicit and manage expectations for URP/mobile support. The additional information is being added to the VFX documentations and we are expanding the package description to address that.

    Thank you for your feedback!
     
    VladVNeykov, Jul 2, 2020
    #27
    bali33 likes this.