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( open ) [ HOU-2519 ] Vray Environment Fog

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  • ( open ) [ HOU-2519 ] Vray Environment Fog

    Hello.
    I have tried setup simple Environment fog effect, like in 3ds max for example. And didn't find way how do to this! I have created Vray Environment Fog node in mat network. I use in my scene Dome Light and one direct light. I didn't find any gudilince in help docs and on the internet as well how make it appear on my render Maybe you can give me a way or example how to use it? I find only one tutorial with using Volume Grid Shader but it;s not good solution for big scale scenes.

  • #2
    Hey. Fist you need to create V-Ray Environment node in the OUT context and point the main V-Ray ROP to it(see attached image) Then you create the fog node inside that environment node and you`re set.
    Attached Files
    Noemotion.net - www.noemotion.net

    Peter Sanitra - www.psanitra.com

    Noemotionhdrs.net - www.noemotionhdrs.net

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    • #3
      Also, if you want per-object fog you could connect "V-Ray Fog Effect" to the "Volume" input of the "V-Ray Material Output" (you'll need to adjust material opacity to make it visible though).
      V-Ray For Houdini | V-Ray Hydra Delegate | VRayScene
      andrei.izrantcev@chaos.com
      Support Request

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      • #4
        Thank you guys!

        Comment


        • #5
          Originally posted by bdancer View Post
          Also, if you want per-object fog you could connect "V-Ray Fog Effect" to the "Volume" input of the "V-Ray Material Output" (you'll need to adjust material opacity to make it visible though).
          I cannot get that to work at all.
          What do you mean adjust the opacity?

          I tried exactly that but no dice.

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          • #6
            > What do you mean adjust the opacity?

            Set 0 opacity in the material assigned to that object.
            V-Ray For Houdini | V-Ray Hydra Delegate | VRayScene
            andrei.izrantcev@chaos.com
            Support Request

            Comment


            • #7
              Hmm it doesn't seem to be working for me. I am away for a week now, will see how much of an idiot I am on my return....

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              • #8
                Hi Jim Meston , what are your Houdini and V-Ray versions?
                You could check the example I uploaded here.
                Attached Files
                Last edited by chakarov; 31-08-2020, 01:37 AM.
                Georgy Chakarov | QA
                www.chaosgroup.com
                georgy.chakarov@chaosgroup.com

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                • #9
                  Sorry for the delay, that is working. I am not sure why it wasn't working. I have up versioned since this original query but equally it could be user error... scale vs distance parm etc.

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                  • #10
                    Hello. Can't make work fog again. just simple setup but fog doesn't appera. Tried on new scene, no results
                    Vray 5.0050.0 (from Nightlies) Houdini 18.5.499
                    Attached Files

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                    • #11
                      Hello Mikhalenko , the issue is a known and logged, but unfortunately not yet fixed.
                      Georgy Chakarov | QA
                      www.chaosgroup.com
                      georgy.chakarov@chaosgroup.com

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