flip reseeding dont interpolate but set to value

[ino]

is there some way to set certain attributes of reseeded flip particles to a value or to 0

or to know by some attribute which particles are created by reseeding 

i constantly pumping in particles by my self so simply checking the id (its bigger the the originally created amount) wont work

i probably could create some routine to catch the seeded particles by recording the biggest id check how many particles i inject .... on each frame

but i wonder if there is a build in way i did not find till now

 

 

[bunker]

here is a simple solution without any solver tweaks:
- create a random int attribute per point and convert it to float:

f@r=int(rand(@ptnum)*1000);

eg: r = 153.0
- on the FLIP solver/reseeding/interpolate attributes, add the attribute r
- as a post sim process, you can compare the original attributes and interpolated ones, they will have a decimal value >0
eg: r = 154.462

if(f@r-int(f@r)>0)@Cd={1,0,0};

in practice, this isn't 100% perfect so you can use a vector attribute instead, have a look at the attached HIP
separate_reseeded_bunker_001.hipnc

[ino]

 i had sort of the same idea 

i have an attribute which indicates a group membership which is currently an int (1 or 0)

i basically just interested that i dont get additional of this kind of particles so i simply switch it to a float and anything isnt exactly 1 is 0 

[Atom]

That is interesting. So, you could generate whitewater only on reseeded particles, if you separate them before the fluid_compress node. Or surface each set, a little differently.

Edited March 14, 2020 by Atom