void Update ( [UNiagaraDataInterfaceHairStrands](API\Plugins\HairStrandsCore\Niagara\UNiagaraDataInterfaceHairStrands) * Interface, [FNiagaraSystemInstance](API\Plugins\Niagara\FNiagaraSystemInstance) * SystemInstance, const [FHairStrandsBulkData](API\Plugins\HairStrandsCore\FHairStrandsBulkData) * HairStrandsDatas, [UGroomAsset](API\Plugins\HairStrandsCore\UGroomAsset) * GroomAsset, const int32 GroupIndex, const int32 LODIndex, const FTransform & LocalToWorld, const float DeltaSeconds )