Particle Frequency node not working in Event Generator

I want to make an effect that each particle can hit the ground and when it hit the ground spawn sparks. So I used Event Generator to do this. And I wish only a few particle can spawn sparks not all of them.

The Frequency well make all the sparks spawn randomly. So can’t do this.
I thought use ParticleFrequency may fix this problem. It should pick up some of the particles always spawn sparks.and others will not be.
But looks like it not working.Nothing happened when I change the value. Is there anything I missed?

a lot!

Hey Z_SilenceMoon,

Particle Frequency may be having issues, I’ll have to look into this further.

If you only want specific particles to spawn sparks here is what I would recommend. Create two emitters in your particle system, one that generates sparks when they bounce and one that doesn’t. That should give you the control you want.

Let me know if that helps,


I went ahead and made a ticket since the behavior seems unexpected. the workaround I suggested should still help for your situation.

Keep in mind that this issue may not be prioritized or fixed soon.

Here is the link: Unreal Engine Issues and Bug Tracker (UE-43101)

Thank you, Ed.
I followed your way and get the same control without using Particle Frequency.