For permanent installations, calibrations can be performed automatically at certain intervals, e.g. in the morning when starting up the system or remotely-controlled via a media control system. This way the projected image keeps being accurately adjusted and retains a high sharpness at any time, e.g. even after a lamp change. If a media control system contains buttons for starting calibration and for loading a backup calibration, these operations can also be performed by staff without any technical background.
Start by performing a standard, camera-based calibration as explained in topic Camera-based calibration.
Please note the following:
Before the calibration the images projected by the video projector need to be aligned in such a way that they cover up the screen so that it is fully illuminated even when the video projector is slightly misaligned.
The calibration must be saved as Startup Calibration.
Continue by adding the trigger VIOSO calibration in the project. It can be found in category Multidisplay. See also Creating triggers.
After executing this trigger Vioso calibration will be performed automatically without any further queries. Should calibration fail for any reasons, the last successful calibration will be loaded.
The trigger can be executed by placing a trigger marker in a start timeline, remotely controlled or time-controlled via the scheduler. See also Executing a trigger.
In
order to ensure stable display allocation after a power failure or when
the displays are defective we recommend connecting an EDID Manager (e.g.
Gefen Detective) along the signal line between display and graphics output.
The EDID manager saves EDID and transmits it to the graphics cards even
when the video projector is switched off, disconnected or defective. This
keeps Windows from changing the display allocation due to altered EDIDs.
Under unfavorable conditions, e.g. when there are many interfering light sources present or the unstable setup causes movements, calibration may fail and the picture be completely distorted. If a renewed calibration fails again due to the fact that the interfering influences cannot be eliminated it may help to load a previously created configuration file. In the paragraph below you will find some explanations as to how this can be done by creating a trigger that may be executed via a media control system.
Start by performing a standard, camera-based calibration as explained above.
Save
this calibration under _Backup.vwf
in folder C:\ProgramData\AV
Stumpfl\Wings 5\Vioso. This folder is usually preset and contains
all previously created calibration files. It is also possible to open
this folder by clicking Extras
- Open folder 
VIOSO data and rename an existing
calibration file to _Backup.vwf.
Following this create a trigger Load VIOSO backup in the project. It can be found in category Multidisplay. See also Creating a trigger.
When this trigger is executed the Vioso calibration _Backup.vwf is loaded automatically and without any further queries. Note: Before the trigger can be executed any possible playback needs to be terminated. Please note that calibration only starts after three seconds to ensure that all video inputs are closed.
The trigger execution can be remotely controlled or time-controlled via Scheduler. See also Executing a trigger.
See also