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Black spots in Lightmapping

Discussion in '5.6 Beta' started by GeekCats, Feb 13, 2017.

  1. GeekCats

    GeekCats

    Joined:
    Jul 31, 2014
    Posts:
    58
    I was left wondering if it was a bug or setup error. That's because I saw that it had been fixed in 5.4.
    I attached the images. First I tried with 10 in Lightmapping resolution and than with 40, but the issue continues.
    This is a bug or settings?
    Screen Shot 2017-02-13 at 11.21.50 AM.png Screen Shot 2017-02-13 at 11.21.57 AM.png
     
    GeekCats, Feb 13, 2017
    #1

  2. Arkade

    Arkade

    Joined:
    Oct 11, 2012
    Posts:
    655
    Does the problem disappear when you clear baked data (i.e. clear lightmaps)?
    (I'm just a user but I'm seeing a vaguely similar problem related to Allegorithmic Substances that survives lightmap clearing.)
     
    Arkade, Feb 13, 2017
    #2

  3. GeekCats

    GeekCats

    Joined:
    Jul 31, 2014
    Posts:
    58
    @Arkade,

    Yes, I tried clear baked data, no changes.
     
    GeekCats, Feb 13, 2017
    #3

  4. Arkade

    Arkade

    Joined:
    Oct 11, 2012
    Posts:
    655
    So what tells you this relates to light mapping? (If you'll forgive the impudent question -- meant to help!)
     
    Arkade, Feb 13, 2017
    #4

  5. pojoih

    pojoih

    Joined:
    Mar 30, 2013
    Posts:
    226
    Looks like overlapping lightmap UVs. Try turn on "Generate Lightmaps UVs" in the import options of your meshes.
     
    pojoih, Feb 13, 2017
    #5
    mzr, IDmikael and virgiliunovi like this.

  6. GeekCats

    GeekCats

    Joined:
    Jul 31, 2014
    Posts:
    58
    Because this is a image with NO lightmaping. The Black Spots appears after baked the lights.

    nolightmapping.jpg
     
    GeekCats, Feb 13, 2017
    #6

  7. kemalakay

    kemalakay

    Unity Technologies

    Joined:
    Jul 12, 2016
    Posts:
    224
    Hey @GeekCats

    As @pojoih righteously said, it seems that you have overlapping UVs on your mesh, please consider enabling `Generate Lightmap UVs` option from the import settings of your mesh.

    If not try setting backface tolerance to zero in case this is a single-sided mesh, see how you can do that through this post: https://forum.unity3d.com/threads/progressive-lightmapper-in-5-6-beta-6.454362/#post-2944834

    Thanks!
     
    kemalakay, Feb 13, 2017
    #7

  8. GeekCats

    GeekCats

    Joined:
    Jul 31, 2014
    Posts:
    58
    WORKS!!!!

    @Arkade, @pojoih and @kemalakay
    Thanks a lot!!!!
     
    GeekCats, Feb 13, 2017
    #8
    kemalakay likes this.