Is there a way to ask a Niagara particle system what user parameters it has?

Development Asset Creation FX
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1

I want to have the player be able to pick a niagara particle effect (from an ever increasing library of VFX skins), and then tweak whatever user parameters that particle system has. Is there a way I can ask particle template what its user parameters are, so I can expose those to the player dynamically, or do I have to create some kind of data asset for every particle system that lists the user parameters?

2

You can’t extract parameter values from Niagara Systems, but you can create blueprints that will set those parameters, and players can interact with such blueprints.

3

good question. I wish there was some tool or “wizard” dialog box to step through the process of generating blueprints based on user exposed variables. I’ve been re-doing the work for each niagara asset I’ve bought from marketplace but recently started a universal niagara blueprint that has everything I normally use all wired up.

4

Old question, but maybe this is useful?:

TArray<FNiagaraVariable> UserParams;
NiagaraSystem->GetExposedParameters().GetUserParameters(UserParams);
for (auto& UserParam : UserParams)
{
	UE_LOG(LogTemp, Log, TEXT("%s: %s, type: %s"), *NiagaraSystem->GetName(), *UserParam.GetName().ToString(), *UserParam.GetType().GetName())
}
1 Like
5

This