How to incorporate noise into a Fog Volume on a spline?

[Mark]

Hi Dr Sassi,

We would like to get fog to swirl. We have tried using a spline with Volume Builder but can not seem to incorporate a noise to give it organic randomness.

Here is a link to the project, https://drive.google.com/file/d/1WKM7pz9hFsHSPOXrWQ1s-vms8iqUhkz8/view?usp=share_link

Please advise.

Thank you

[Dr. Sassi]

Hi Mark,

Thanks for the file and for using Google.

The needed setting is in the image, for the Shader Field. Otherwise, you only have a small "box".

CV4_2025_drs_25_VOfn_01.c4d

Let me know if that works for you.

Enjoy your weekend

[Mark]

Thank you, Dr Sassi!

Wondering if there is a way to have the fog extend outside the bounds of the spline so we don't see the hard edge of the shape?

[Dr. Sassi]

Hi Mark,

Lionel has share some ideas here, is that what you are looking for?

https://youtu.be/6YVd6edVxps?feature=shared&t=964

Have you tried (Volume-Fog> Spline> Inside Voxel Falloff
CV4_2025_drs_25_VOfn_02.c4d

All the best

[Mark]

Thank you!

Do you know how long I have been searching for fog and cloud tutorials! I have been looking for info on this for probably 2 years, this is the best tutorial I have seen and never came up in my searches.
They need to add Fog and Cloud to the tutorial name or at least the keywords!

You saved the day once again!

[Dr. Sassi]

Thank you very much, Mark.

Yes, this is a good idea to tag this in a better way.

My best wishes