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  • Gamma option for V-Ray Color node

    I`m missing quick way to setup color/gamma values on the V-Ray Color node. By default the node is linear. Can you add linear/sRGB dropdown menu in there please? In Max for example we have the gamma field on the same node for that.
    Even thou it`s not correct linear/sRGB conversion, it`s faster then having to do the math in head each time or adding another color correct node

    Hope it makes sense, thank you.


    Last edited by psanitra; 04-10-2019, 12:00 PM. Reason: grammar
    Noemotion.net - www.noemotion.net

    Peter Sanitra - www.psanitra.com

    Noemotionhdrs.net - www.noemotionhdrs.net

  • #2
    Would a Gamma float parameter set to a default range of (0.455, 2.2) work for you instead ? Not that I mind the drop-down but it if we're adding it, we may as well make it a bit more versatile.
    The way I see it, it's a mouse drag to one of the 2 ends instead of 2 clicks on a drop-down menu.
    Like this:

    Click image for larger version

Name:	houdini_2019-10-06_19-48-05.png
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    gosho.genchev@chaosgroup.com

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    • #3
      Slider will be quick a dirty solution. We have a choice now, if we want to make quick, or correct. Mainly because 0.455 or 2.2 or is not proper lin/sRGB conversion. It`s close, but in some cases can be very wrong.
      My opinion is, that if you can do proper color space transformation , do it with dropdown, because only 2 cases are needed(linear or sRBG).

      Lets see if other users reply to the topic and share their preference..., slider or not, still better then just color


      Noemotion.net - www.noemotion.net

      Peter Sanitra - www.psanitra.com

      Noemotionhdrs.net - www.noemotionhdrs.net

      Comment


      • #4
        You could try using TexMaxGamma node. It's not exposed into UI, but you could create it with Python:
        Code:
        hou.node('/mat').createNode('VRayNodeTexMaxGamma')
        If you'll find it doing what you need we could expose it in the UI.
        Last edited by bdancer; 08-10-2019, 03:52 AM.
        V-Ray For Houdini | V-Ray Hydra Delegate | VRayScene
        andrei.izrantcev@chaos.com
        Support Request

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        • #5
          bdancer , just tried, that`s perfect.
          Noemotion.net - www.noemotion.net

          Peter Sanitra - www.psanitra.com

          Noemotionhdrs.net - www.noemotionhdrs.net

          Comment


          • #6
            Will be in the next builds as menu entry "V-Ray Color With Gamma".
            V-Ray For Houdini | V-Ray Hydra Delegate | VRayScene
            andrei.izrantcev@chaos.com
            Support Request

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