hi again
i h ave a litle probleme when i create krakatoa birth from a the loader
some particles stay in the space world
you can see that in the pic
it s when pflow creat boxes
what can i do to keep all particles in pflow
thanks
How were the particles created originally?
If they come from a PRT Volume, it won’t work because they don’t have valid IDs to track the particles creation and deletion over time, the loading would be based only on their index. If there are less particles on a following frame than on the previous frame, the excess particles would stay behind.
If the particles do have a valid ID channel, it is possible that they are not being deleted using a Krakatoa ID test.
More information about how the particles were made in the first place would be useful.
For this kind of effect, we recommend using Frost instead of PFlow.
hi !
so this a screenshot of pflow and a prt loader
in this scene i used diffrent loader because i try diffrent size of boxes.
it s for and add so i need to find the best way and tool to do that.
i just download frost on thinkbox site but i think it s limited because i dont buy it yet
it s look like perfect for my work 
it s not licenced yet i see all my boxes in viewport in wireframe
thanks a lot
I think you misunderstood my question.
I did not ask how you are loading the particles. The real question is where are these particles coming from! 
How did you make the PRT files being loaded by the PRT Loaders? Only if the PRT files were made from PFlow, TP, RealFlow or Naiad (or any other source with valid ID channel to track the particles throughout the animation) can we guarantee that the PRTs loaded in PFlow will actually work over multiple frames. Also, if there is a valid ID channel, you must also add a Krakatoa ID Test connected to an event with a Delete operator to delete the particles that have died in the sequence.
Please see the tutorial here:
thinkboxsoftware.com/krak-us … der-birth/
If you would prefer to test Frost, please send an email to sales AT thinkboxsoftware DOT com and let us know you want a time-limited full evaluation license to try it out. Without a license, Frost will show the geometry in wireframe mode and won’t render.
PRT was created by a PRT volume the volume is a skinned charcater and particles saved by krakatoa
then reloaded by a prt loader
i m sure frost is the best way
i m asking for a frost evaluation
thanks a lot
Aha!
As I mentioned in my first answer, you cannot use a PRT Volume because it does not generate an ID channel - on each frame, completely NEW particles are created and they cannot be tracked throughout the animation by the Krakatoa PRT Birth/Update/ID Test operators. These were made for the reloading of PFlow-generated PRTs back into PFlow. It would be possible to modify these PFlow operators in the future to allow that to some extent (and it is on the Wishlist already), but right now it is not supported.
Frost will do just fine, stay tuned 