bounce back particle effect

Development Programming & Scripting Blueprint
1

![9`QLM]XQW%8$5LQCK0VU29D.png|410x307](upload://zQ8uYHHuLWEjdjlMbfSrYNMItQ0.png)

I am using ue 4.12.4 to create a particle system like this.And I wonder how can i make the particles bounce back as soon as they reach the ground?
I tried to use the collision module,but it did not work.

B6HLZ4JV9M}EZZ2MI@32OOF.png
B6HLZ4JV9M}EZZ2MI@32OOF.png682×533 64 KB

2

in the learn tab of the launcher there is under engine content examples a section called Content Examples it has a level in it that has a example of what your looking for