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[HELP] How to use fog in Universal RP?

Discussion in 'Universal Render Pipeline' started by kollosuss13, Mar 9, 2020.

  1. kollosuss13

    kollosuss13

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    Hello, i upgrated built-in render pipeline to Universal RP, when i was using built-in RP fog worked fine, i used fade rendering type:

    Now fog don't hide objects:

    How can i solve this problem? Please help.
     
    kollosuss13, Mar 9, 2020
    #1

  2. Andre_Mcgrail

    Andre_Mcgrail

    Unity Technologies

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    What shader is the ground using? It looks like this is not recieving fog but the other blocks are.
     
    Andre_Mcgrail, Mar 10, 2020
    #2

  3. kollosuss13

    kollosuss13

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    upload_2020-3-10_14-29-50.png
     
    kollosuss13, Mar 10, 2020
    #3

  4. kollosuss13

    kollosuss13

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    Should i use global fog?
    upload_2020-3-10_14-32-52.png
     
    kollosuss13, Mar 10, 2020
    #4

  5. Andre_Mcgrail

    Andre_Mcgrail

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    and thats the only material in the scene? do you have any lights in the scene and if so, does the fog work better if it is turned off?
     
    Andre_Mcgrail, Mar 10, 2020
    #5

  6. Andre_Mcgrail

    Andre_Mcgrail

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    Nope, I'm actually puzzled by the fact that you are seeing this, as you should be using URP and it has no deferred rendering.
     
    Andre_Mcgrail, Mar 10, 2020
    #6
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  7. kollosuss13

    kollosuss13

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    i used deffered fog in post processing stack before
    upload_2020-3-10_14-49-38.png

    i have directional light in scene
     
    kollosuss13, Mar 10, 2020
    #7

  8. kollosuss13

    kollosuss13

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    blocks have almost the same material but different color
     
    kollosuss13, Mar 10, 2020
    #8

  9. kollosuss13

    kollosuss13

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    upload_2020-3-10_14-56-0.png
     
    kollosuss13, Mar 10, 2020
    #9

  10. Andre_Mcgrail

    Andre_Mcgrail

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    Ah ok, so Deferred fog will no longer work as we do not have a deferred renderer in URP, you will have to use the normal fog settings in the lighting settings window.

    upload_2020-3-10_14-27-34.png
     
    Andre_Mcgrail, Mar 10, 2020
    #10
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  11. kollosuss13

    kollosuss13

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    upload_2020-3-10_15-42-11.png

    Now fog cover all objects
    upload_2020-3-10_15-43-37.png
     
    kollosuss13, Mar 10, 2020
    #11

  12. Andre_Mcgrail

    Andre_Mcgrail

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    Try lowering the density, also you can try the different 'Mode's to get the same look as before.
     
    Andre_Mcgrail, Mar 10, 2020
    #12

  13. kollosuss13

    kollosuss13

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    upload_2020-3-10_15-52-6.png

    upload_2020-3-10_15-57-22.png

    i lowered density and tried different modes but it all the same, only linear mode don't cover ground but still don't hide blocks and i still see this message, maybe it's a bug or something.
     
    kollosuss13, Mar 10, 2020
    #13

  14. Andre_Mcgrail

    Andre_Mcgrail

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    I would try make the colour the same as your skybox, and then switch to linear fog, at that point playing with the near and far to get it the same distance it was. The message you are seeing is a UI issue, where it believes you are still using builtin renderer and not Universal RP, but this will not affect the fog.

    If you remember the settings you used on teh deferred fog that would be easiest to move them over as they should work the same.
     
    Andre_Mcgrail, Mar 10, 2020
    #14

  15. kollosuss13

    kollosuss13

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    upload_2020-3-10_16-31-51.png

    done, but fog still don't hide blocks just cover them

    that how it was when i used standard RP
     
    kollosuss13, Mar 10, 2020
    #15

  16. kollosuss13

    kollosuss13

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    I've solved this problem, my ground was a cube... when i change it to a plane all works fine now. thats was so simple, i feel awkward a little bit :)
     
    kollosuss13, Mar 22, 2020
    #16
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  17. RoughSpaghetti3211

    RoughSpaghetti3211

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    Quick question how do I adjust the distance of the fog. I need a very long line of sight
     
    RoughSpaghetti3211, Mar 23, 2020
    #17

  18. kollosuss13

    kollosuss13

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    you can change density value of the fog
     
    kollosuss13, Apr 1, 2020
    #18
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  19. Nicate

    Nicate

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    I'm pretty sure this is because (exponential) fog in URP is calculated per vertex instead of per pixel. I'm not sure if this is an oversight or on purpose for performance reasons (this is URP after all). So if you want more correct (exponential) fog on large objects using the built-in fog functionality, you will need to give them (a lot) more vertices.
     
    Nicate, Apr 16, 2020
    #19
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  20. BoberousR

    BoberousR

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    Hey bro, I've been having the same issue you had when you started this thread. Although I can't seem to fix mine (even when i make a plane), I might of missed something. I was wondering if you could quickly show me how you fixed it, if you've got discord that might be easiest? :)

    All the best,
    R
     
    BoberousR, Apr 26, 2020
    #20

  21. BoberousR

    BoberousR

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    Or if anyone else has an effective solution for getting (not buggy) fog in the URP then I'd be very keen to know! :)
     
    BoberousR, Apr 26, 2020
    #21

  22. Spaniel

    Spaniel

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    Have been waiting on some info about how to fix fog (it's per vertex) or at least how to calculate depth in the fragment shader. No assistance from Unity and no thread replies. Disheartening.
     
    Spaniel, Aug 7, 2020
    #22

  23. Eclectus

    Eclectus

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    Hey Unity - Depth fog in the URP would be useful
     
    Eclectus, Sep 27, 2020
    #23
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  24. z2aido

    z2aido

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    i have the same problem with fog in URP
     
    z2aido, Oct 9, 2020
    #24

  25. z2aido

    z2aido

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    No it didn't work well I still had the same problem
     
    z2aido, Oct 9, 2020
    #25

  26. marcospgp

    marcospgp

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    Try 0.002
     
    marcospgp, Feb 7, 2021
    #26

  27. UnityLighting

    UnityLighting

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    Fog intensity value must be very lower than 1
    use 0.00x values instead
    here is some tests on URP expo fog:




    Built in fog:
     
    UnityLighting, Feb 8, 2021
    #27
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