What is a virtual rail?

The route is decided before the night

A flight is an authored camera move, with a planned route, framing and pace from departure through landing. The route through the room, the framing at each point along it and the place the move comes to rest are all decided while there is time to decide them.

That is the part a rehearsal is good at. The shot can be tried, changed and tried again on the camera that will carry it, and the version everyone agreed on is the version that runs. Nothing about it depends on whose hands are on the controller when the moment arrives.

The timing stays in your hands

What a rail gives back is the timing. One axis of a joystick moves the shot along the route you composed, so the camera arrives when the moment arrives rather than when a stopwatch says so.

A soloist holds a note longer than they did in rehearsal, and the move waits with them. A pastor walks the aisle slower than last week. A guest finishes a thought early. Nothing about the route changes; the pace does, because a person is riding it.

It works in both directions, too. If the moment turns back, the shot can travel back along the same route, through the same framings, and land where it started.

The camera does not move house

The rail is a route, not a track on the floor. The camera stays bolted where it was installed, and the movement is the camera's own pan, tilt and zoom, coordinated along the path you authored. Nothing is added to the truss and nothing rolls down an aisle.

For the same reason, a rail does not give you the parallax of a real dolly. The view changes the way a camera turning and zooming changes it. What you get is a composed move with a person controlling its pace, which is the part a jump between presets is missing.

Who is meant to ride it

Riding a rail is a different skill from operating a camera. There is one thing to get right, the pace, and the frame cannot leave the route however hard the stick is pushed. A volunteer who would never be handed a free joystick mid-service can be handed this.

The person who composed the flight keeps the creative decisions. The person running the production decides when the move happens and how fast it travels. Those two jobs can sit with two people, a week apart.

What to check next

Look at the controller your team already presses, and the camera you would put the first move on. Both matter, because the rail is driven through the control path your room already has. Our compatibility answer comes in two labeled forms, and we tell you which one applies to your camera before anything starts.

Check your setup with us, or ask the integrator who installed the room for the control path of that camera. Then pick a rehearsal to try the first move in.