SpawnParticleSystem not working

General Issues and Bug Reporting
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1

It doesn’t seem like SpawnParticleSystem is working at all but I haven’t seen anyone else talking about it so im confused. I tried it with the following code from the official exposing-assets link below.

MyVFX:cancelable = SpawnParticleSystem(MyParticleSystem, GetTransform().Translation)

I have made a new project and tried the official code, I have tried it with my current project with my own code. I tried it with existing particle systems that all work correctly in game when placed manually. I tried it with new particle systems that are just simple looping default particles. I have tried it with using a variable for the particle system or just using the example and using the properly exposed assets in the Assets.digest.verse and reference it directly.

I don’t receive any errors, just nothing ever gets spawned. I have checked the spawn locations and made sure all the functions are running with print statements but no particles are spawned.

Nothing is working and I am curious if its working for somebody else?

2

Got the same result :smirk:

3

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not sure what i’m doing different from you but mine works

5

Well I was testing this further after seeing your success. I was able to get it working in a brand new normal project, my test project before was a lego project, and I created another brand new lego project and it wasn’t working again. I also tested two older current project which is not a lego project and it still wasn’t working either.

Older lego project: not working
Brand new lego project: not working
Old normal project: not working
Brand new normal project: working

Can you test any of your older projects from before the lego update and see if it works there?

6

i’ve just tested it on a normal old project

it worked once, for 3 seconds (the first loop) and then never again

i’ve closed everything down and restarted it all, deleted the particle system and recreated it (in the old normal project) but it has never worked again

this is very frustrating because now i’ve used niagara for the first time investigating your problem, i like them and really want to use them in my old project

1 Like
7

i just tested it on an island created from the meadow island template on the 12th February and it worked ok

so then i went back to the one i told you didn’t work and now it does work

so then i started adding other niagara objects and then it broke again, but if i reboot my PC and try it again it works

very strange behaviour

8

In my case, no one VFX work, reboot or not, old project or not… realy frustrating

9

the “SpawnParticleSystem” was far too unpredictable

so instead, i added a VFX spawner device to my island and set the “Enabled on phase” property to “None”

i added my Niagara particle system to the VFX spawner as a custom visual effect

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i exposed the VFX spawner in my verse code as an editable…

@editable vfxSpawner1 : vfx_spawner_device = vfx_spawner_device{}

then i can enable/disable the VFX spawner in my verse code whenever i want…

vfxSpawner1.Enable()
Sleep(3.0)
vfxSpawner1.Disable()

and it works every time :slight_smile: