This variable determines whether or not Vision includes full path information in a filename. When V_BASENAME_TRANSLATION is set to the default value of 1 (on, true, yes), only the file's base name (the filename without any extension or path information) is stored. When the variable is set to 0 (off, false, no), complete path and filename information is stored.
Retaining path information can be helpful if you have Vision files with the same name stored in different locations and you want to map one of the segments from one directory to a new location.