Fashion Shows done right.

Runway lighting is a colour-rendering problem disguised as a design one. Garments are bought and photographed under your light, so the front wash needs a high colour-rendering index, a consistent colour temperature along the entire ramp and enough level for a photographer at the end of the runway to shoot at a sensible shutter. Shadowing across the face is the thing to avoid: light from front and slightly above at a repeatable angle, add back light to separate the model from the backdrop, and resist the temptation to put colour anywhere that touches skin or fabric.

The show is twelve minutes long and takes six hours to rehearse. That time goes into the line-up order, the music edit and the timing of each exit, because once the first model walks there is no stopping. Lock the music as a timecoded edit, cue the lighting states to it, and rehearse with the actual walk speed rather than an assumed one. Expect the designer to reorder the sequence backstage an hour before doors, so the cue structure should be built around looks and segments rather than around individual model numbers.

The build itself is unforgiving in two directions. The ramp must be stiff, level and quiet under heels, with a surface that does not reflect the front light into the cameras and a height that still gives the seated front row a sightline past the photographers' pit. Audio needs even coverage along the full length rather than two loud boxes at the top, because guests sit within arm's reach of the runway. Backstage needs a music and comms feed, a monitor showing the ramp, and a dresser area lit well enough to check a garment before it walks.