I can retime my main fluid sim because it is not changing points but I can't do it with whitewater due point changing.

Any tips on how to retime whitewater in SOPs? Is it possible?

Thanks.

As long as you simmed with id attribute it's totally possible to retime the sim. The timeblend sop even looks for id by default.

If you're doing flip, it also helps to turn off reseeding as often the reseeded particles will only be alive for a single frame and you'll have to do more work to get it to move right during the retime.

Thanks for the feedback dude!

Yeah, it kind of works most of the time, the problem that I am seeing is that there are always some pops here and there I couldn't identify yet why, maybe it is having something to do with particles changing from foam to spray to mist I am just speculating but definitely when I try to use timeblend+timeshift with whitewater I have those occasional pops.

I don't know if there's a way to minimize that of if it makes sense what I am talking about to you but I am listening to suggestions.

I'll post some examples soon as I can.

Cheers!

Hey mzigaib,

I'm guessing that the problem you are running in to is birth and death of particles. You can blend between position or attribute values over time, but you can't blend between a state of a particle living, and not. Your best bet would be to figure out a way to jitter them so that you don't get clusters of particles birthing and dying every X amount of frames.

~Ilan

Did you turn off re-seeding like the first poster suggested? Popping on a time blend usually is re-seeding on, as it will recycle point numbers and timeblend wont work.

sl0throp
Did you turn off re-seeding like the first poster suggested? Popping on a time blend usually is re-seeding on, as it will recycle point numbers and timeblend wont work.

Like I've said I don't have a problem with the main fluid sim, yes I turned the re-seeding off for that, the problem emerges when I try to retime the whitewater result since it's birthing and changing particles for the whole sim.