ViewMaster VR is easily configured using the on-screen dialog, accessed from the “CONFIGURE” button on the main screen. You can also access it using the keystroke CTRL-ALT-C


The video window layout can be a simple grid, where each window has identical size. For a classic Quad Split, use the Grid mode, with 2 rows and 2 columns. For grid layouts, the number of rows and columns can be adjusted independently, allowing up to 36 video windows in total.

From V1.2.0, non-Grid layouts allow each row  to contain a different number of windows. For example, the “4:4:2” mode has a first row of four windows, a second row of four windows, and finally a row with two.  Other layouts use the same naming arrangement.

Larger numbers of windows will require more CPU and GPU power, as well as increased network traffic to the ViewMaster PC.


Video Quality

Normally you would use the “Low” quality setting for video. This uses the NDI low bandwidth “proxy quality” streams to minimize CPU use and network traffic. In some cases  you may want a smaller number of high-quality windows using full bandwidth NDI streams.  Selecting  “High” quality will dramatically increase network and processor load, so should be used with caution.

Audio Metering

ViewMaster can display up to sixteen audio meters for each window.

Audio Listen

Enabling “Audio Listen” will display an audio icon by each video window. Stereo Audio from the selected stream is then sent to the PC’s audio output for monitoring.

From V1.2.0, the Audio Listen state is preserved across restarts. Also the state is preserved even if the listen buttons are hidden. This allows the panel to be configured with a fixed window for ‘Audio Listen’.


Enabling “Tallies ” will display Program and Preview tall lights by each video window. These display the current tally status of the video.

Monitor Aspect Ratio

This setting configures the aspect ratio of the monitor that you’re using to display the ViewMaster output. (The aspect ratio of incoming streams is separate – Each stream is resized to fit the available window size)

Full Screen Mode

To use ViewMaster in Full Screen, select a monitor number from the Dropdown menu. If Full Screen is off, ViewMaster can be resized and positioned as a regular Windows application.

NDI Output

ViewMaster can create an NDI stream containing all video windows, meters and tallies, etc. This stream can be used or viewed with any NDI monitor or software.

The resolution can be specified in the configuration page. The “Free” resolution makes the resolution track the size of the ViewMaster window .

Please note that minimizing ViewMaster to the taskbar, or moving the window partially off-screen will affect the NDI output.
However, the NDI output will continue to run if you switch between separate Windows desktops.

From V1.2.0, the name of the NDI stream created can be adjusted via the Web Control page, and audio from the selected “Audio Listen” window will be embedded in the NDI Output.
For earlier versions, the NDI Output is always labelled “ViewMaster VR”, and does not include any audio.

RouteMaster Integration

ViewMaster integrates directly to RouteMaster, automatically displaying inputs or outputs, and allowing direct router control. Full details are here.

To integrate with RouteMaster, you should enter the URL of RouteMaster’s WebSocket port. This should be in the format ws://<ip_address>:<portnumber>. For example, if using RouteMaster on the same PC as ViewMaster, with RouteMaster’s default port, you would use ws:// or ws://localhost:81 


This allows you to set TCP port used for HTTP access to ViewMaster.  Please see the Web Control page for details.


If you’re using RouteMaster in Full Screen mode, you can easily shut down RouteMaster from the configuration screen.