Niagara Parameter Collection Variable Sync via C++

Development Programming & Scripting
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I’m making a particle emitter with a “Point Attraction Force” for which the attraction position should be a global variable that I can change in C++.

  • I’ve made a niagara parameter collection and added a vector to it
  • Added the collection parameter to the emitter
  • And referenced the parameter to the attraction position inside the “Point Attraction Force”
  • Inside player actor; I update the variable with the code below
TArray<FNiagaraVariable>& parameters = mNiagaraParameterCollection->GetParameters();
parameters[0].SetValue<FNiagaraPosition>(GetActorLocation());

or via a parameter collection instance.

mNiagaraParameterCollectionInstance->SetVectorParameter(TEXT("Location"), GetActorLocation());

For whatever reason the parameter won’t update when I spawn systems with those emitters. The attraction force is working but it seems like it is using a zero vector, which is the default value inside the parameter collection.