static [UMaterialInstanceDynamic](API\Runtime\Engine\Materials\UMaterialInstanceDynamic) * GetOrCreateTransientMID ( [UMaterialInstanceDynamic](API\Runtime\Engine\Materials\UMaterialInstanceDynamic) * InMID, [FName](API\Runtime\Core\UObject\FName) InMIDName, [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * InMaterialInterface, EObjectFlags InAdditionalObjectFlags )