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nightly bug: // Error: Light instances are not supported //

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  • nightly bug: // Error: Light instances are not supported //

    Hi,

    Before in many versions of V-Ray since like 2009 we could instance vray lights. I noticed in the recent updates (tried testing the latest build) and now maya spits out this error message;

    // Error: Light instances are not supported //

    The outliner seems to contain the lights and they work, but it doesn't appear in the viewport.
    Maya 2020/2022
    Win 10x64
    Vray 5

  • #2
    Since Maya 2017 there is a special classification class that allows V-Ray to disguise all of its lights as "authentic" Maya lights.

    Thanks to this all V-Ray lights can now be previewed in the viewport by selecting "Use All Lights" (or clicking 7).

    The bad consequence of this is, since Maya doesn't allow light instancing, V-Ray now suffers the same limitation.

    Does this cause a problem for your scene? How many lights you have and, if copied (instead of instanced), is it significantly slower?
    Yordan Miladinov V-Ray for Maya developer

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    • #3
      That makes sense.

      It's not a problem with speed - it's just that we used to control temps and intensity of whole carparks/offices etc with one single instanced light which was really useful.

      I guess there are workarounds though (by using ramps to control multiple non instanced lights in future). Thanks for explaining what's going on.
      Maya 2020/2022
      Win 10x64
      Vray 5

      Comment


      • #4
        You can still control multiple V-Ray lights at once by manipulating their input attributes. For example:
        Click image for larger version

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        Yordan Miladinov V-Ray for Maya developer

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        • #5
          Thanks - yes that is what I'll do now.
          Maya 2020/2022
          Win 10x64
          Vray 5

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