FILM LIGHT Truelight SDI, Руководство пользователя

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Chapter 4 – Operation
Backing up the cubes
Truelight SDI User Guide
23
Backing up the cubes
It is always wise to keep backup copies of the cubes—you may need to revert back to an
earlier version at some stage. A backup copy can also be used to transfer the cubes to a
different Truelight SDI unit or a different Truelight platform.
Note that the actual binary data in the 3D LUT is not backed up using this procedure—what
is saved is the cube header that contains the Truelight commands used to generate the
cube in the first place. This list of commands is known as the Truelight profile and includes
pointers to the required calibration files plus other data used to actually create the 3D LUT.
The Truelight root On the Truelight software host, all Truelight data is stored in a series of directories under
the Truelight root. This is normally set to
/usr/fl/truelight (Linux) or /Library/Truelight
(Mac) but can be changed to any other location if required. Before performing a backup
you can check the setting of the Truelight root by selecting
Manage Calibrations from the
Tools menu in the Truelight window.
Performing a
backup To copy all the cubes in the Truelight SDI unit, click the Archive button in the Synchronise
section of the Hardware panel:
All cubes on the box are written to a BZ2 zip file. Browse to the location where you want
the file to be saved and click
Ok .
Once the backup is complete a summary panel appears listing all the cube profiles copied
and noting any errors. Part of the backup process is to compare the checksum for each
calibration file used in the cube with checksums with the corresponding calibration data
found within the directories under the Truelight root. If any errors are reported then this
implies that the calibration data present in the Truelight software host is not the same as
the calibration data used to create the cube originally. One possible reason for this is that
a monitor calibration has changed due to a recalibration since the cube was originally
created. Check any error messages carefully.
To restore cubes from an archive file to the unit, click Restore , browse to the BZ2 file and
click Ok .
In order to re-create the Truelight colour cubes both the profile commands AND the
original calibration files are required. If the cubes you are backing up were not created
using this machine or calibration data in the machine has been changed since the cubes
were originally created, then it is necessary to find a copy of the original calibration
data if you want to rebuild the cubes you are backing up.
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Figure 4-5: Synchronise options