====== Signal Names ======

This is a common parameter in pipeline commands, allowing the user to specify which specific signals to be evaluated as input. Signal names are the third (bottom) level of the [[visual3d:documentation:visual3d_signal_types:data_tree|data tree]] hierarchy.

The parameter will appear in commands as /Signal_Names or /SIGNAL_NAMES.

===== Multiple Input =====

The + symbol is used as a delimiter for multiple entries. For example, to specify the three signals RFT1, RFT2, and RFT3:

<code>
/Signal_Names=RFT1+RFT2+RFT3
</code>

===== Empty Input =====

Some commands allow empty input for this parameter, for example:

<code>
/Signal_Names=
</code>

In these cases, this indicates that Visual3D should use all signals of the specified [[Visual3D:Documentation:Pipeline:General_Information:Signal_Types|signal type]] (and, if specified, [[visual3d:documentation:pipeline:general_information:signal_folder|signal folders]]).

===== See Also =====

The Signal_Type parameter is often accompanied by two other parameters:
  * [[visual3d:documentation:pipeline:general_information:signal_types|Signal_Types]]
  * [[visual3d:documentation:pipeline:general_information:signal_folder|Signal_Folder]]

Together these three parameters represent the application-wide [[visual3d:documentation:visual3d_signal_types:data_tree_syntax|data tree syntax]].