Userful: Configuring Video Wall

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Copyright © 2016 Userful Corporation. All rights reserved.
(Updated 2016.11.23)


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Creating and Configuring Video Wall


Userful's video Wall feature enable users to group multiple displays to form a single large canvas. This makes it easy for a single Userful host to support content translation to entire screen area as a single display. Userful's video wall feature supports a variety of configurations (e.g. 2×2, 3×3, 5×5) and layouts (equidistant grid, or free-layout and artistic).

To create a video wall, click Control Center > Station Mapping > New Video Wall button. The video wall configuration window allows video wall integrators to adjust the video wall size, layout, bezel correction and color calibration.

The content that you want to show on the displays depends on what session container the video wall is mapped to. This is discussed in a later step.



Grid Layout

Grid Layout allows video wall integrators to configure the video wall in an equidistant grid or in synchronized rotation. This layout allows users adjust the video wall size (number of displays), display assignment, padding between displays and color calibration in an equidistant layout.

    Layout

    Grid Layout

    The default video wall size is 4 displays with 2x2 configuration. To add/delete rows or columns, use the +/- buttons next to Rows/Columns.

    To rotate video wall in a given direction, select from the drop-down list of rotation option.

    To assign station IDs on displays, click the drop-down select-box in the center of the "display" and then select the ID of the display that will be in that position of the video wall. Use the “Show Station IDs” button to view IDs on the physical displays.

    Note: The display ID will have a green color if it is unmapped, orange color if it is assigned to any other session container and red color if it is assigned to another video wall.

    Spacing

    Spacing

    "Spacing" refers to the space between visible portions of the image; in the context of the video wall. This effectively implies the horizontal and vertical spacing taken up by the display's bezel. For best results, padding should be adjusted so that the complete content is visible. To assist with this fine-tuning process, Userful has provided "Diamonds" test pattern that is displayed on the video wall. You can use +/- buttons next to the vertical and horizontal padding sliders to adjust spacing. Click on the “Chain” icon to link the padding sliders and set the horizontal and vertical padding to the same value.


    Color Calibration

    Color Calibration

    Color Calibration allows you to adjust the color characteristics (i.e. RGB color scheme, Brightness and Contrast) of any display in the video wall configuration. This effectively implies adjusting the color tolerance and intensity of displays in the video wall setup, thereby enhancing the visual illusion of a single large uniform display. For color correction:

    • Click Color option
    • Enter values or use mouse wheel to select values for color scheme, brightness and contrast respectively.

    You can also use Reset to Saved to undo recent changes or Reset to Zero to set color scheme to the default values.

    Verify

    Verify the Layout

    To preview all changes done, click Verify option. However, if you want to edit existing settings, you can navigate back and forth using arrows(< >). Once done, click "OK" button to save configuration.

    Artistic Layout

    Artistic Layout

    Artistic Layout available under "Ultimate" version of Userful solution enable users to configure video wall in free layout and create more appealing and interesting display arrangements.
    Artistic Layout provides following features:

    • Ability to move and place multiple displays at desired position
    • Rotate the selected display at desired angle along a common origin point
    • Calibrate the video wall to identify and assign physical display placements
    • Specify the display panel size
    • Specify the rotation-offset


    To configure Artistic Layout, click Control Center > Station Mapping > New Video Wall > Switch to Artistic. This video wall configuration window allows video wall integrators to define, adjust, and calibrate video walls.

    Layout

    Artistic Layout

    The default video wall size is 4 displays with 2x2 configuration. To add a display, use the “Add Display” button and to remove a display from the canvas, select the display and click “Trash” icon. Confirm your action by hitting "OK".

    To define what displays make up the video wall, click the drop-down select box in the center of the "display" and then select the ID of the display that will be in that position of the video wall.
    Note:The display ID will have a green color if it is unmapped, orange color if it is assigned to any other session container and red color if it is already assigned to another video wall.

    To rotate the display in the desired position, specify the "Rotation-Offset" and click on the corner rotate buttons of the selected display(e.g. specify the value as 20 or 20.5)
    Note: Default value of "Rotation-Offset" is 90 degrees. You can also use "Shift + [" or "Shift + ]" to rotate the displays with an offset of 10 degrees.

    Spacing

    Spacing

    Calibration enables video wall integrators to adjust the padding, placement and spacing of video wall displays in real-time scenario. To assist with fine-tuning/calibration, click on non-calibrated display and drag it left/right using mouse or “arrows” keys on the keyboard. To rotate a display, select a display and click upwards or downwards arrow to rotate clock-wise or anti-clockwise (see image to the right). Repeat this step for every non-calibrated display.

    Note: You can also use "Ctrl"+ Mouse clicks to select multiple displays or "Ctrl+A" to select all.


    Color Calibration

    Color Calibration

    Color Calibration allows you to adjust the color characteristics (i.e. RGB color scheme, Brightness and Contrast) of a display. This effectively implies adjusting the color tolerance and intensity of displays in the video wall setup, thereby enhancing the visual illusion of a single large uniform display. For color calibration:

    • Go to the Color option under "Configure Video Wall" window
    • Enter values or use mouse wheel to select values for respective color scheme, brightness, or contrast.

    You can use Reset to Saved to undo recent changes or Reset to Zero to reset color scheme to default values.

    Verify

    Verify the Layout

    To preview all the changes done, click "Verify" option. However, if you want to edit existing settings, you can navigate back and forth using arrows(< >) as needed. Once done, click "OK" button to save the configuration.

    Note: To apply changes, hit "Apply" button available on the bottom right-corner of the Station Mapping page.

    To change the video wall configuration, click an existing video wall to open Video Wall Zone Settings window. Click Calibrate Video Wall button and do the changes.

    Mapping Video Wall to a Session Container

    After creating and calibrating your video wall using the graphical interactive video wall tool, your video wall will appear in the station mapping screen. This station mapping screen provides the ability to map video wall to "roles" / "sessions" via an intuitive drag and drop interface. Different types of Session Containers available for setting up a video wall are:


    Note: Changes will not take effect until the "Apply" button is clicked.

    Configuring Zones

    Configuring zones in a video wall enables users to output multiple content sources on a single video wall at the same time. Each zone can display its own content or can be incorporated into multiple layouts. Userful's "Ultimate" license provides users the flexibility to separate displays within a video wall into multiple zones, thus enabling users to have a video wall playing different content within one layout.

    Some things to remember:

    • All displays in a video wall setup belongs to the default zone.
    • A display can be part of multiple zones but can play content of only one zone at a given time.
    • Each zone is controlled by the control station. Control Station is the station designated for input and audio capabilities. User can connect input devices like keyboard, mouse and audio jack to this station and access them across the video wall. Any action taken to this station will have the same effect on the zone/video wall as it would on an independent station (e.g., Resetting this station will reset the entire video wall).


    Adding Zones

    To add a zone in an existing video wall layout:

    • Click an existing video wall to open the “Video Wall Zone Settings” dialog window (do no click on the "PLAY" toggle located in the center of video wall)
    • Click "Stop Now" link if the zone is playing
    Creating Zones
    • Click “+” icon available to create a new zone
    • Select (toggle on/off) the displays for the current zone
    • Edit zone name (optional)
    • Select the "Control Station" from the drop-down
    • Select the Sound Output from the drop-down:
    • "Disabled" for no sound output
    • "Host PC/Server Sound Card" for sound output from the Userful host's sound card
    • "Zero-Client Control Station" for sound output from the zero client audio socket
    • Edit the advanced settings (applies only to dynamic content):
    • Max Canvas Size
    "Max Canvas Size" feature gives admin the ability to set the canvas size for dynamically rendered content. This way if you have a very large video wall (say 5x5) you can still run your browser session at 4k resolution and upscale it to fit the display. In situations where you are facing even greater than normal performance constraints, you may choose even the 1080p canvas size.
    • Intel® (onboard) GPU: enables dynamic content session containers to take advantage of the onboard GPU for the enhanced content rendering
    • Nvidia GPU: enables dynamic content session container to take advantage of the Nvidia GPU for the enhanced content rendering
    • Click “OK” to complete the process

    Mapping Zones to Session Container

    Every zone appears as a separate draggable object under Control Center > Station Mapping.Once created, zone can be "mapped" or "assigned" to any session container using drag-drop functionality.

    Note: Changes will not take effect until the "Apply" button is clicked.

    Switching between Zones

    Play/Stop Playback

    With Control Center > Station Mapping it is possible to play or stop content playback.

    To play a zone, click "Play" toggle (available in the center of the zone). Once active, zone will play the content as per the mapped session container. Similarly, to stop the playback, click the "Stop" toggle (available in the center of the zone).



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