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GI on unity terrains

Discussion in 'Global Illumination' started by hippocoder, Mar 11, 2015.

  1. hippocoder

    hippocoder

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    Hi,

    We use Unity terrain, and RTP. We are gettting bakes of several hours with a default terrain, including an unusual warning message:

    warning.png

    Any advice would be welcome as its torture to change anything at this point.
     
    hippocoder, Mar 11, 2015
    #1

  2. hippocoder

    hippocoder

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    Tried on just "Low" and now it's saying it's TOO HIGH! and might even take infinite time. So none of the presets work.
     
    hippocoder, Mar 11, 2015
    #2

  3. KEngelstoft

    KEngelstoft

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    The logic for that message is inverted, sorry for the confusion. You should use the very low setting as starting point. This should be fixed in patch1.
     
    KEngelstoft, Mar 11, 2015
    #3

  4. hippocoder

    hippocoder

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    I get a warning on both very low, and low but I guess very low is as good as it gets for terrain, if I'm understanding :)
     
    hippocoder, Mar 11, 2015
    #4

  5. Botanika

    Botanika

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    The "System_ReallyLow" Lightmap parameter, from the Viking demo, seams to give me fast and good results.
     
    Botanika, Mar 12, 2015
    #5

  6. KEngelstoft

    KEngelstoft

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    @hippocoder as Botanika says, you can create custom LightmapParameters that's a perfect fit for your object - the presets are just a starting point.
     
    KEngelstoft, Mar 12, 2015
    #6

  7. hippocoder

    hippocoder

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    Yep thanks for mentioning it but I already knew/tried that. I'm just saying the warnings are present on everything including the custom ones regardless of settings :) I guess there is no perfect fit for this giant 4096 16 bit heightmap terrain :(
     
    hippocoder, Mar 12, 2015
    #7

  8. KEngelstoft

    KEngelstoft

    Unity Technologies

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    It depends on your atlas size. If the scale makes the terrain larger than your lightmap, it will clamp and you will get a warning about it.
     
    KEngelstoft, Mar 12, 2015
    #8