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Resolved Baked lightmap looks bad

Discussion in 'Global Illumination' started by Shanti-AnyVerse, Jan 3, 2022.

  1. Shanti-AnyVerse

    Shanti-AnyVerse

    Joined:
    Dec 26, 2021
    Posts:
    24
    I am developing for quest 2
    So i changed my project build setting to Android ("Switch platform")
    Now my baked lightmap went from being great to a disaster (photo attached
    Tried playing with the lightmap & quality settings but nothing seems to improve.
    any ideas?

    Unity 2020.3.23 LTS
    URP
    Linear Color Space

    upload_2022-1-3_17-4-40.png
     
    Shanti-AnyVerse, Jan 3, 2022
    #1

  2. AcidArrow

    AcidArrow

    Joined:
    May 20, 2010
    Posts:
    11,791
    Yeah that’s probably the compression. You can switch to uncompressed light maps, but then they’re going to need a lot more ram and space.
     
    AcidArrow, Jan 3, 2022
    #2
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  3. kristijonas_unity

    kristijonas_unity

    Unity Technologies

    Joined:
    Feb 8, 2018
    Posts:
    1,080
    As @AcidArrow has pointed out, the issue likely lies with lightmap compression.

    Can you verify which Lightmap Encoding quality setting are you using for Android platform? You can access said setting in Project Settings > Player > Android tab. I would recommend setting it to High Quality, as it will force a higher quality compression format for lightmaps (ASTC instead of ETC2).

    Alternatively, select your lightmap textures in the project tab, and override their compression to ASTC. 4x4 block compression might be a good place to start.
     
    kristijonas_unity, Jan 4, 2022
    #3
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  4. Shanti-AnyVerse

    Shanti-AnyVerse

    Joined:
    Dec 26, 2021
    Posts:
    24
    Thanks guys I think Its solved
    I set it to high
    @AcidArrow you mentioned more RAM? shouldn't a baked lightmap save ram at runtime?
     
    Shanti-AnyVerse, Jan 16, 2022
    #4

  5. AcidArrow

    AcidArrow

    Joined:
    May 20, 2010
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    No? I mean it depends, but using a bunch of uncompressed light maps will certain up the vram and space usage.
     
    AcidArrow, Jan 16, 2022
    #5

  6. Shizola

    Shizola

    Joined:
    Jun 29, 2014
    Posts:
    476
    This is always coming up as an issue, maybe its time to change the default for lightmaps to be ASTC?
     
    Shizola, Jan 17, 2022
    #6
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  7. UnityLighting

    UnityLighting

    Joined:
    Mar 31, 2015
    Posts:
    3,874
    Open Windows->Rendering->Lighting window and set the Lightmap Compression option to the none... Also you can manually select your lightmap textures and set its compression to the none
     
    UnityLighting, Jan 20, 2022
    #7