Trigger Boxes Preventing Particle Collision

I put a trigger box to open/close a light when I’m in the box… but my particles with actor collision are passing through the entire building,landscape and others while the particle stays in the triggerbox (gets back to fine collision when particle leaves the trigger box)…

Hey muyfaya,

I created a test project in 4.13 with a particle system within a trigger volume that activates the particle system when you enter it. The particles still collide with the floor mesh so I’m providing my test project here so you can compare what is different.

Test Project

Let me know if the test project needs to be adjusted to reproduce the issue.

,

Ed

I don’t know if I understood you right (my english is ■■■■)… but I will send you a project (edited yours) which is showing what I exactly did (ignore compile errors) link text

Hey Mufaya,

Thank you for submitting the test project. I have reproduced this issue and logged a report for it here: Unreal Engine Issues and Bug Tracker (UE-43757)

You can track the report’s status as the issue is reviewed by our development staff. Please be aware that this issue may not be prioritized or fixed soon.

Also, a valid workaround it to assign the trigger volume to a separate collision channel so that the particle system no longer registers a collision with the trigger volume.

Cheers,