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Discussion My 3D model recieves weird shadows...

Discussion in 'Universal Render Pipeline' started by papijuanluu, Feb 29, 2024.

  1. papijuanluu

    papijuanluu

    Joined:
    Dec 4, 2023
    Posts:
    2
    Hi there!
    Someone can help me with this? I have 3D models in unity and some of them are recieving weird shadows from others 3D models (I think).
    I'm using a custom shader, but i tried with unity materials as well and still the same.
    I checked normals and UVs.
    I also tried to check Swap UVs and Generate Lightmap UVs at the Inspector window's 3D model.
    I'm using Unity 2021.3.22f1
    Here is an image of what happens

    upload_2024-2-29_11-20-22.png

    Thanks!
     
  2. DevDunk

    DevDunk

    Joined:
    Feb 13, 2020
    Posts:
    5,204
    It could be that the sun is at the exact same rotation as the geometry, maybe angle the main light.
    It could also be a normal issue, so check the normals of the mesh
     
  3. papijuanluu

    papijuanluu

    Joined:
    Dec 4, 2023
    Posts:
    2
    It's not about normals, unwrap, new 3d models...
    Looks like its about the sun rotation or some parameters i cant find. If i rotate it, the same thing happens to the other areas.
    Don't know how can i fix it...
    upload_2024-2-29_17-8-49.png
     
  4. ElliotB

    ElliotB

    Joined:
    Aug 11, 2013
    Posts:
    297
    It looks like shadow acne on the wall. Check your shadow bias values in the render pipeline asset