RoomagenDevelopersGet API key

Guide

Day to dusk (exterior)

Relight a daytime photo of a building's exterior as a golden-hour, dusk or night shot.

Day to dusk for exteriors relights a daytime photo of a building — a facade, a back garden, a pool deck — for the hour you pick: the sky turns, the light comes in at that hour's angle and colour, and after sunset the lights already on the building glow. The facade, the planting, vehicles and the composition stay as photographed. It saves a second visit at the right hour — useful for listing photography, and for hotels, short-let operators and architects who need an evening hero image without waiting for one.

For a photo taken inside a room, use day to dusk (day-to-dusk), which handles windows, the view through them and the room's own lights.

A modern villa photographed by day, relit for 19:00 — before
Before
A modern villa photographed by day, relit for 19:00 — after
After

Options

OptionTypeValuesDefaultRequiredDescription
timeShiftinteger0–2320optional

Target hour of day. 20 is the dusk look most listings want.

seasonstring
nonespringsummerautumnwinter
noneoptional

Season of the trees and planting in the photo. none keeps them as photographed; another value asks for that season's foliage and light (autumn colours, bare winter branches).

Every option has a default, so an empty options object gives the dusk look most listings want (20:00), with the planting as photographed.

Example

json
{
  "tool": "day-to-dusk-exterior",
  "image_url": "https://example.com/house-exterior-noon.jpg",
  "options": {
    "timeShift": 20,
    "season": "none"
  }
}

Tuning the result

timeShift is the target hour on a 24-hour clock, from 0 to 23. The default of 20 is the dusk look most listings want — the sky has colour but the building is still readable. 17 and 18 give golden hour, with long warm shadows; 21 and later move toward night, where the facade goes dark and its lights carry the image. Earlier hours relight the scene for dawn, morning or midday instead.

season defaults to none, which keeps the trees and planting as photographed. Another value asks for that season's foliage and light — autumn colours, bare winter branches.

In the default guided tier, a vision model first looks at the photo and writes the lighting instruction for that composition — it describes the sky only when the sky is in the frame. If that step fails, built-in instructions for the chosen hour are used instead. tier: "auto" and tier: "custom" skip it. With custom, customPrompt adds your own direction — a softer sky, a warmer mood — applied through light, sky and atmosphere only; it is not a way to move, add, remove or restyle anything on the property.

Be careful what you change

season changes what the photo claims about the property: autumn colours on a garden photographed in spring, or snow that was never there. Change the light freely; change the facts deliberately.

Next steps