Description Determines if a given source has a "Focus to/from a point" ray direction type.
Syntax focus = IsSourceDirFocus ( n )
Parameters focus (Boolean) Indicates if the source has a point focus ray direction (True) or not (False).
n As Long Node number of the source.
Remarks This function determines if a given source has a "Focus to/from a point" ray direction type. If there is a problem the function returns False and does not set an error.
See Also Examples
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