( open ) [ HOU-2519 ] Vray Environment Fog

[Mikhalenko]

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.

[psanitra]

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.

[bdancer]

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).

[Mikhalenko]

Thank you guys!

[Jim Meston]

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.

[bdancer]

> What do you mean adjust the opacity?

Set 0 opacity in the material assigned to that object.

[Jim Meston]

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....

[chakarov]

Hi Jim Meston , what are your Houdini and V-Ray versions?
You could check the example I uploaded here.

[Jim Meston]

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.

[Mikhalenko]

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

[chakarov]

Hello Mikhalenko , the issue is a known and logged, but unfortunately not yet fixed.