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[HOU-1489] Interactive light select in Vray's IPR

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  • [HOU-1489] Interactive light select in Vray's IPR

    Hi,

    Part of how debug shading, isolate select works in Maya, is that it will isolate selected lights(s)
    This is quite handy in look dev, for example I have a studio lighting setup for a car. Around 15 lights in my scene. The current workflow now when making adjustments to a specific light, I would need to select all other lights, then disable them, then select my light again to make my adjustments. Too many clicks and not fun at all to work like that.
    Vray for Maya has a perfect workflow for this,
    Please skip to 55 seconds

    The icon I use in the light lister just selects the light, like how I would select lights in viewport or Outliner
    All lights are on and i have isolate select turned on in IPR settings...which isolates a selected light Click image for larger version  Name:	Screenshot_205.jpg Views:	1 Size:	46.1 KB ID:	1049490


    Is it possible to have something like this in VFH ?

    And talking about Vray's light lister, Houdini has its own Light Bank Click image for larger version  Name:	Screenshot_206.jpg Views:	1 Size:	49.9 KB ID:	1049495


    But unfortunately I cannot change light intensity or color for example there, it just doesn't work with Vray lights
    Even the check box for when lights are enabled or not, it doesn't work. What works there is selecting lights and changing a name of a light
    So the light bank is mostly useless in Vray's workflow
    Cannot you guys get access to these parameters under the hood and make it work with Vray lights somehow?
    Or like what Max/Maya and C4D have, by making a light lister UI that we can use from the shelf?

    Im not sure how much work this would be, it is probably more complex that what I think and might not be possible at all. Would love to hear from you guys.

    And sorry about spamming the forum with posts recently, I do know that you have other things to do and I don't expect replies on all my threads or requests.
    I just tend to write things down so I don't forget about them.

    Best,
    Muhammed
    Last edited by Gosho.Genchev; 07-01-2020, 05:43 AM.
    Muhammed Hamed
    V-Ray GPU product specialist


    chaos.com

  • #2
    Renderman lights seems to work nicely with the light bank, I can toggle them on/off
    And I can change intensity or color.. And isolating lights interactively works as well(from the toggle next to the light name) glad to see this is possible at all with 3rd party renderers
    Muhammed Hamed
    V-Ray GPU product specialist


    chaos.com

    Comment


    • #3
      Would love to hear the devs input on this if possible.
      Muhammed Hamed
      V-Ray GPU product specialist


      chaos.com

      Comment


      • #4
        Hey Muhammed_Hamed , big apologies for such a delayed response. To be fair, we've discussed this topic multiple times and we never came to a conclusion about how to approach this. Currently, the V-Ray lights use hidden openGL parameters linked to be the same value as the one you tweak. This is the reason why changing the values in the light bank for a V-Ray light resets it - you're changing the hidden openGL parameter, not the V-Ray parameter. So, we can only expose options in the light lister if we rename our own parameters to be the same as those on regular Houdini lights.

        I'll talk to the devs again - hopefully we can take care of this pretty soon.

        All the best!
        Last edited by Gosho.Genchev; 09-12-2019, 05:41 AM.
        gosho.genchev@chaosgroup.com

        Comment


        • #5
          Thanks for the update Gosho
          Much appreciated!
          Muhammed Hamed
          V-Ray GPU product specialist


          chaos.com

          Comment

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