SFNode [in, out] metadata NULL [X3DMetadataObject]
Metadata are not part of the X3D world and not interpreted by the X3D browser, but they can be accessed via the ECMAScript interface.
SFTime [in] set_triggerTime
Set_triggerTime provides input time event, typical event sent is TouchSensor touchTime.
SFBool [out] triggerTrue
TriggerTrue outputs a true value whenever a triggerTime event is received.