FNiagaraSystemInstance ( [UWorld](API\Runtime\Engine\Engine\UWorld) & InWorld, [UNiagaraSystem](API\Plugins\Niagara\UNiagaraSystem) & InAsset, [FNiagaraUserRedirectionParameterStore](API\Plugins\Niagara\FNiagaraUserRedirectionParameter-) * InOverrideParameters, [USceneComponent](API\Runtime\Engine\Components\USceneComponent) * InAttachComponent, [ENiagaraTickBehavior](API\Plugins\Niagara\ENiagaraTickBehavior) InTickBehavior, bool bInPooled )