How to fix noisy, flickering volumes in Cinema4D and Redshift

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It can be tricky to resolve noise issues in Redshift volumes. Recently I was working on this short render.
In my original version I found that the volumes were flickering a lot when I rendered out an image sequence.
It turns out that GI rays have a big impact on the noise in volumes and the more transparent a volume is the more prone it is to noise issues.
I had a very transparent volume in my render with a large object beneath it bouncing GI rays back into the volume. So with that in mind I adjusted my settings.
In the GI settings I set both engines to brute force and increased the brute force GI rays from 16 to 512.
This cleaned up my render and brought my noise levels down to a reasonable amount.
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[@tunji6434]

This helped me tremendously on my project. The flickering was all over the place. Thanks a lot for the valuable tutorials.

[@the-astropath]

Glad it helped!

[@momarkmoproblem]

thank you so much for being short and too the point.

[@the-astropath]

Thank you! That's my goal :)

[@AREA6]

I had this issue as well. For me, the best fix was to apply a RS object tag to the volume, and turn off "Generates GI" and "Receives GI." It had a negligible effect on the rest of the scene and completely cleaned up the volume. But thanks much for your tip - it may be useful in other circumstances.

[@claudioantonelli2725]

Thanks, just what i needed ^^

[@frkk6933]

That futuristic envirement looks so cool!

[@the-astropath]

Thanks! Appreciate it

[@alegarny]

My man, you just saved me, thank you so much for your work

[@the-astropath]

ha love to here it! This problem was driving me nuts when it first happened to me.

[@anglereserve]

Nice. Murdered my Gremlin. THX!!

[@DavyCreation]

Thank you so much, straight to the point, you saved me so much time, great tips !

[@tonytsaoproduction]

Wow a lot of works done in editing, Thanks so much for sharing this tip

[@the-astropath]

Thanks Tony!

[@Elysium.4D]

It worked!!! Thank you so much

[@the-astropath]

You're welcome!

[@sperng1]

Will try this thx

[@danodesigndanomotion2068]

thanks

[@arseniyzibarev8788]

thanks! more

[@dariearminalexandru]

Really cool, was wondering if you've ever encountered the reverse; for high density vdbs to have them looking blocky with GI? I have this issue where the vdbs look blocky with GI and totally fine without. Anyway great quick tip.

[@braddlackeyy]

*Depending on your DCC* In houdini you can drop down a "volume sample" node, and increase the sampling to remove thick denisity blocks from your render.

[@juancarlosgzrz]

Done thanks!

[@R0D0LF0MARTINS]

❤

[@rubendrakkar]

the specular aov and the reflections are doing the flicker is theres any resolve??

[@the-astropath]

Did you increase the GI bounces?

[@rubendrakkar]

@@the-astropath yes I did

[@ugur.d]

i dont use redshift render. how can i solve this problem without using redshift

[@victycoon]

Same here ):

[@malek7396]

Thanks

[@the-astropath]

You're welcome!