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Why is Skybox Light affect my enclosed space?

Discussion in 'Global Illumination' started by tektonspace, Aug 9, 2018.

  1. tektonspace

    tektonspace

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    Dec 28, 2016
    Posts:
    19
    upload_2018-8-9_18-43-23.png

    Hi guys, thanks for checking my post.
    Well, I am currently developing a scene (an enclosed train station with just a small entrance)and encountered a lighting problem which I cant handle..

    upload_2018-8-9_18-45-13.png
    this is interior view of the building above.
    the lighting in this area should be dark, only affected by some of the lights coming from the
    emissive meshes(LightBulb on top) and the hole on the entrance.

    But it seems skybox lighting keeps on brightening this area.
    I know I can turn skybox off as well as directional light, But I dont think thats proper way of handling
    this issue.


    I want my interior to look just like this scene!
    this scene is also developed in Unity, But it seems skybox is not affecting the interior at all.
    I am using Realtime GI. and since this is only for testing, I am not planning to use any light baking method.

    I have googled about this issue for like a half a day and still, cant find a decent solution to this matter.

    Help me please!

    thanks guys.
     
  2. AcidArrow

    AcidArrow

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    11,791
    Does it darken if you turn down the environment reflection probe intensity in the lighting panel?
     
    macka1080 likes this.
  3. tektonspace

    tektonspace

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    @AcidArrow Thanks for your reply, but it doesnt really affect the whole scene. just a reflection.
     
    Last edited: Aug 10, 2018
  4. AcidArrow

    AcidArrow

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    It looks like you have a directional light in the scene (maybe without shadows?). Either turn the shadows on, or disable the directional light.
     
  5. tektonspace

    tektonspace

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    Hey AcidArrow, I have tried to turn the directional light off but the blue tint still remains. thanks again!
     
  6. WildStyle69

    WildStyle69

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    Jul 20, 2016
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    318
    Hi guys - I had the same problem on my project recently, it was the 'Indirect intensity' in the Lighting settings tab, I'm using the Progressive Lightmapper. Your issue might not be the same, however it sounds very similar... so mentioning here, just in case.
     
  7. tektonspace

    tektonspace

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    Dec 28, 2016
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    [Solved]

    Well after days of further research, I found out the solution to this problem. It was just a matter of me lacking a proper knowledge behind Unity's lighting system. Even if you are using a realtime GI, the GI baking process still takes place.
    And In realtime GI, Dynamic objects do not receive indirect lighting and it only takes ambient lighting.
    So in fact, my main problem was that the walls were left as dynamic.
    After setting my walls to "static", voila! everything works the way I wanted to be. If you want your dynamic object to receive proper lighting, you can place light probes in the desired area.
     
    nglasl and HenryTownshend like this.
  8. radiantboy

    radiantboy

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    that's great but what about non static npcs etc. I am having same issue right now, seems my skybox makes anything non static pink, based on the pinkish colour of the skybox. I want to turn this off entirely. But how ?
     
  9. ViooGames

    ViooGames

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    Jan 2, 2020
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    4
    well i opened this thread because of some different lighting doubt so here it is if someone wants skybox to not affect your scene

    Just change the source from skybox to a solid color and then select an ambient color

    scene.JPG
     
  10. Pawciu

    Pawciu

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    Jun 21, 2015
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    16
    In my case it was "Environment Reflections" displayed in post above. Changing "Source" from Skybox to Custom fixed the skybox color interference
     
    Kaynoux, ronniej2 and blueivy like this.