Video: Route Projectors and Displays to Outputs

Last updated 10 August 2026

A Projector or Display in the scene is a description of a screen, not a signal. Video Routing is the matrix that connects the two: your scene objects are the rows, the machine's outputs are the columns, and one checkbox in between is what puts an image on the wall.

Before you start

  • At least one Projector or Display in the scene

  • Your monitors and projectors connected before Backstage was started — GPU outputs are detected at startup only

1. Open the Video Routing window

View → Video Routing.

2. Find your device in the rows

Your Projectors and Displays are the rows, grouped the way your scene is grouped. Expand the group holding the device you want.

A group row is a heading, not a target — its cells are deliberately dead. Route the device, never the group.

3. Route it to an output

The outputs are the columns. Click the checkbox where your device's row meets the output you want.

4. Check the output is enabled

Each output column carries two icons under its name. The eye enables or disables that output's signal — its tooltip reads Enable or Disable. The double wave opens Output Warping for it, which is covered in its own video. Clicking the output's name opens the Outputs window with that output selected.

5. Route to a split output

A split output expands into its sub-outputs. Route to one of those — the parent column carries no checkbox of its own, because the parent is one physical monitor and the split regions are what content is actually addressed to.

An output missing from the columns was connected after Backstage started. Outputs are enumerated once, at startup. Connect the hardware, then restart Backstage and the column appears.

Shortcut. To route a single device without leaving Scene Objects, right-click the Projector or Display and open its Video Routing submenu — the same output slots as checkboxes. Hovering an output there highlights the physical output, so you can confirm you have the right one before you tick it.

Done when

The cell where your device meets its output carries a checkmark, that output's eye is on, and the device shows its content — or the default grid, if nothing is playing yet.