Distance for Fog?? Tweet

[anschelk]

Hi everyone,

i`m playing around with the new option in the enviroment tag "medium" i don't know how to control the distance of the fog?
i don't need a box for volume or?

[bepeg4d]

Hi anschelk,
in general, the new medium node in the environment is intended to be use if all your scene needs to have fog... if you need to have the fog only in certain parts of the scene, then you need an object with a specular material assigned as before, or you can use the new volume object.
ciao beppe

[anschelk]

ciao beppe

thanks for the quick reply !

i try to have a scene like this
https://www.youtube.com/watch?v=m9oUHZvOfZU

so u mean thats not made with the new medium tag?

so i have to work with a volume object? i don't get it why he is talking about the new feature of octane 3, the specular methode
is also possible with octane 2.

thx

[bepeg4d]

Hi anschelk,
no sorry, the link you posted is exactly about the new medium pin in the environment node. As you can see, the fog is applied to the entire scene. Before this we had to create the volume for the fog or we had to surround the camera with an inverted sphere. Now you can add a scattering node in the medium tab of an environment octane tag, take also care of the thickness value in order to better control the effect
ciao beppe

[anschelk]

hey beppe

thx! last question! is there a way to control the thickness of the fog with a gradient or so? i'd like to have no fog by the camera and far away a lot,
like a atmospharic view.

thx again

[pandayoghurt]

I would also like to be able to do this, any help would be much appreciated.

[bepeg4d]

Oh sorry, shame on me
I have prepared a simple scene some days ago but i have forgot to share it
Basically you have to play with higher Phase values, here is the example:

FogTest.7z

(128.49 KiB) Downloaded 456 times

ciao beppe

[coilbook]

Where can we find phase values in 3ds Max to create thicker fog farther the o next is,?

[bepeg4d]

Hi coilbook,
you have to add a scatter node in the medium slot in the Daylight, and then add a Schlick node in the Phase slot:

ciao beppe

[muchogrande]

Is this possible in C4D? I can't find a way to add a Schlick node in the Phase slot...?