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Shadow artifact on Grass with URP [Fix included]

Discussion in 'Universal Render Pipeline' started by sebsmax, Mar 11, 2020.

  1. sebsmax

    sebsmax

    Joined:
    Sep 8, 2015
    Posts:
    118
    While the terrain got a proper update for the shadows and the shadow cascading.
    The grass wasn't that lucky and remain with shadow artifacts.

    See bellow (A circle appear around the limit of the cascading)


    I did fix it myself (see bellow)


    Here is what needs to be modified to be fixed:
    upload_2020-3-11_20-8-32.png

    Atm the git still don't have a fix for it:
    https://github.com/Unity-Technologi...versal/Shaders/Terrain/WavingGrassPasses.hlsl
     
    Last edited: Mar 11, 2020
    sebsmax, Mar 11, 2020
    #1

  2. chalogr

    chalogr

    Joined:
    Aug 24, 2016
    Posts:
    5
    Hello, could you please specify where you modified this? The name of the shader or script? My shadows broke and I have no idea where to change this.
     
    chalogr, Mar 25, 2020
    #2

  3. sebsmax

    sebsmax

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    Sep 8, 2015
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    its mentioned just above: WavingGrasspasses.hlsl
     
    sebsmax, Mar 25, 2020
    #3

  4. chalogr

    chalogr

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    Aug 24, 2016
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    Thank you.
     
    chalogr, Mar 25, 2020
    #4

  5. phil_lira

    phil_lira

    Unity Technologies

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    Dec 17, 2014
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    584
    phil_lira, Mar 26, 2020
    #5

  6. sebsmax

    sebsmax

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    Sep 8, 2015
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    sebsmax, Mar 26, 2020
    #6

  7. hertz-rat

    hertz-rat

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    Nov 3, 2019
    Posts:
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    I decided against using URP for a small project recently because of this bug. When would you suspect the fix will be released?
     
    hertz-rat, Apr 13, 2020
    #7

  8. Elvar_Orn

    Elvar_Orn

    Unity Technologies

    Joined:
    Dec 9, 2019
    Posts:
    159
    Just made a backport PR for it to be in 7.4.
    https://github.com/Unity-Technologies/Graphics/pull/112

    The plan is to release 7.4 next month.
     
    Elvar_Orn, Apr 14, 2020
    #8
    hertz-rat likes this.

  9. Sasasoft

    Sasasoft

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    Nov 6, 2016
    Posts:
    7
    I've updated my project to URP 7.4.1 from 7.3.1. This bug seems to be fixed now!
     
    Sasasoft, Jun 7, 2020
    #9

  10. TreyH

    TreyH

    Joined:
    Feb 6, 2014
    Posts:
    15
    @phil_lira

    This was fixed for grass, but detail meshes on terrain still have this artifact.
     
    TreyH, Apr 29, 2021
    #10
    oleg_v likes this.

  11. oleg_v

    oleg_v

    Joined:
    Nov 10, 2017
    Posts:
    68
    Unity 2021.3.11f1, URP 10.5.0. Artifacts are exists on detail meshes.
     
    oleg_v, Jun 23, 2021
    #11

  12. PutridEx

    PutridEx

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    Feb 3, 2021
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    2020* just in case someone comes back months after and thinks it's about 2021 LTS lol.
     
    PutridEx, Jun 24, 2021
    #12
    oleg_v likes this.