volume render issues

[Pitchi]

Hi ! in my project i rendering some explosions with VBD sequence, but the second explosion have glitch and flahes. that happen when there multiple volume on the screen, when i have just one explosion there are no problem.
Where does this problem come from?

https://we.tl/t-mpfWBcI4dV

thanks

[Dr. Sassi]

Hi Pitchi,

The product is not battle-tested.

If it is based on Multiple volumes, and each sequence has unique names, then it is a case for the tech support.
https://www.maxon.net/en/support-center

Seriously, the video shows that things are weird in the second five. Yes, that is the blurry term I would use here, as I can't tell from a video what the setup is.

This effect reminds me of Timing issues when the time goes beyond 100% (overshoot) while the keyframes might show 0%-100%
But that would require two Volume loaders, as the red part stays.

Without the file here, I can see that would be problematic. I can only guess this is not the best way to solve a problem.
Have you retimed Pyro?
The explosion on the right seems to come closer to the middle. Is this moving?

But perhaps that is already a start.

Besides that, the vdb file for the problem frame[s], is it rendering found when placed into a new scene?

Sorry if that is not helping.

Cheers

[Pitchi]

Thanks you, yes with just a video it's complicated, i asked me if somebody have already seen this type of visuel issue.

I think i solved it, i things. I had one volume texture for the 4 explosions, i created one for each. And i thinks it work now

[Dr. Sassi]

Sounds great that it works, Pitchi.

Yes, the full setup would allow me to look into it. Sometimes, that is sadly not a given.

Thanks for your patience

My best wishes for your project!