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From Rough Plot to Rigged Set: How a Lighting Plot Gets Made
Articles Lighting Design

From Rough Plot to Rigged Set: How a Lighting Plot Gets Made

A look at how bulletico builds a lighting plot for a studio set, from the first site visit and camera positions to the plan the rigging crew works from.

Priya Nair 6 min read

Starting with the cameras, not the lamps

Every lighting plot we draw begins with a conversation about cameras. Before anyone mentions a fixture, Daniel asks which lenses will be used, where each camera will stand, and how much the presenters will move. A fixed desk with two hosts needs a very different plot from a set where guests walk across the floor and cameras track alongside them.

Our audio engineer, Priya, sits in on these early talks, and she has a practical reason. Lamp positions and microphone positions compete for the same ceiling space and the same sightlines, so a boom shadow or a hanging mic that is only noticed at rigging day costs hours. Settling those conflicts on paper costs nothing.

We also ask for whatever the client already holds: floor plans, grid drawings, previous plots and a note of the dimmer or power capacity. If there are no drawings, we measure the room ourselves, and that measuring visit shapes everything that follows.

The site visit and what we measure

A proper visit takes most of a morning. We measure the floor, the grid height and the distance from the grid to the set pieces, because a steep angle that suits a tall studio can flatten faces in a low one. Ceiling height decides which fixtures are even possible, and no brochure can answer that.

We look at the walls and floor finish too. A glossy floor throws reflections into the lens, and a pale back wall can spill light onto the talent when the key is meant to be clean. Daniel photographs each of these from the camera positions so that the plot can be checked against what the lens will actually see.

We note the supply as well: how many circuits reach the grid, what the dimming arrangement is, and where the control position sits. The plot has to fit the building as it stands, so we write down its limits before drawing anything.

  • Grid height and rigging points
  • Floor and wall finish, including reflections
  • Power and dimming capacity
  • Camera positions and likely lens choices

Drawing the plot in layers

Daniel builds the plot in layers rather than all at once. The first layer is the key light for each position, placed so that faces are modelled but not harshly shadowed from every camera angle the director might choose. The second adds fill, kept low enough to hold shape in the face without flattening it.

Backlight comes third, separating people from the set, and then the set lighting itself: washes on backdrops, accents on props, practical lamps that are meant to appear in shot. Working in layers lets us switch each one off on the drawing and ask whether the picture still holds together without it.

Each fixture is given a number, a type, a position on the grid and a dimmer channel, so the finished document reads as a list the rigging crew can follow without guessing. We would sooner spend an extra day on the drawing than leave a decision to be made up a ladder.

Balancing for the camera, not the eye

A studio that looks pleasant to the eye can still give a poor picture. Cameras see contrast differently, and a bright background beside a darker face will either burn out or crush depending on exposure. Much of our checking is about ratios, keeping the difference between key, fill and background within what the cameras can hold.

We talk to whoever will shade the cameras, because a lighting plot that makes their job easy is a good one. If the shader has to ride the iris constantly to compensate for uneven levels, the plot is wrong, whatever it looks like in the room.

Colour temperature matters just as much. Mixing fixtures with different colour output on the same set creates tinted skin and arguments in the gallery. We specify one family of fixtures per area wherever the budget allows, and where it does not, we say plainly what the compromise will look like on screen.

Rigging day and the changes it brings

On rigging day the paper meets the room. We attend, or Daniel's plot goes to a crew we have briefed, and the first hours are spent hanging and cabling to the numbers. Almost always something shifts: a bar is a few centimetres from where the drawing says, or a set piece arrived taller than specified.

Those changes are recorded on the plot as they happen, in a different colour, so the final document matches what is actually in the air. Studios that skip this step find, a year later, that nobody can say why a lamp is where it is.

Focusing is done with a stand-in under the lights, ideally someone of similar height and skin tone to the presenters. We check from every camera in turn, adjust, and check again. The work is slow and quiet, and it is where most of the quality in the final picture is decided.

  • Hang and cable to the numbered plot
  • Mark every site change in a second colour
  • Focus with a stand-in, camera by camera
  • Record the final state for future crews

What the client keeps afterwards

When the work is done the client receives the plot, a fixture schedule, a channel list and a short note on how the rig was balanced. These are written so that a crew who never met us can strip the set, store it and rebuild it later without a phone call to anyone.

We also leave a record of the levels used at handover, with the cameras' exposure settings noted beside them. If the picture drifts months later, that record gives the engineers a fixed point to return to before they start blaming the equipment.

Some clients ask us to return after a few weeks to check how the rig has held up in daily use. Lamps get knocked, gels fade and set pieces move, so a short follow-up visit often catches small problems before they show up on air.

A lighting plot is a working document more than a design statement. It starts from the cameras, respects the room as it is, and ends as a record the next crew can use. Most of the effort happens before the first lamp is hung, in measuring, drawing and checking, so the day in the studio is mostly a matter of following the numbers and writing down what changes.

Plain-spoken guidance on studio design, camera control, lighting, sound and workflow for television networks and live events. Based in Colchester, working across the UK.

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