how can I kill the overlayed particles

[kuaile_yzh]

1. create a source of particle, create 10 particles at first frame, the speed is 1.

2. create a split node, which create particles from the original particle, the speed is 0;

so the result is 10 particle lines.

problem is , 20 particles are overlayed each other. how can I kill the overlayed particles?

howtokill.hipnc

[Emanuele Berti]

Have you tried to put a fuse SOP after your popnet1 SOP?

I think it will work if I understood what you are trying to achieve.

Emanuele

[kuaile_yzh]

Thanks for your reply, Emanuele.

This problem is easy to solve in sop, but is it posibble to solve it in pop?(kill the overlayed particles caused by split?)

[Emanuele Berti]

Could you tell us why in your case you would like to do it in POP instead of SOP?

I'm asking that because what I learnt so far is that in Houdini a point is a point, so it shouldn't be any difference doing something in SOP or POP.

Cheers

Emanuele

[kuaile_yzh]

actually I want to do the effect that if particles get close to each other to a certain distance, they get killed. like the image below.

but I can't get the id of the original particle.

houtokill2.hipnc

I'm thinking if the overlayed particles created by split node could be killed, the problem might be solved.

[wolf_cub_one]

I'm thinking if the overlayed particles created by split node could be killed, the problem might be solved.

If I understand you correctly, then it's just a matter of grouping everything. Just set up groups for each change. I've included your file where I made sure to give the split group and the overlay groups their own group names.

HTH

houtokill3.hipnc