RENDERS
We analyse 32 images by MIR Play-Time Luxigon and JVA Renders to compare how daylight twilight and night change the reading of architecture.
The same building does not tell the same story at midday and at night. Diffuse light may let us read materials and junctions; at dusk, a lit window can make the interior the subject. Time of day is not a finishing adjustment. It selects which part of a project receives our attention.
We compare 32 images by MIR, Play-Time, Luxigon and JVA Renders. We do not infer a precise hour from the pixels of an imagined building. We look at how light organizes routes, depth, material and activity—and when a night view reveals something daylight cannot.
An image does not contain a clock
A blue sky does not prove that a scene takes place at midday. An orange façade may owe its colour to material, light, image treatment or a combination of all three. Nor is a dark interior enough to classify an image as nocturnal.
In this study, daylight, golden hour, twilight and night describe apparent lighting regimes. The golden-hour label groups images with warm, low-angle light; it does not reconstruct an exact time window. Ambiguous cases remain unassigned. Interiors that do not provide a sufficient exterior reference form a separate category.
Twilight has an astronomical definition linked to the sun’s position below the horizon. The National Weather Service distinguishes civil, nautical and astronomical twilight through that position. A published image without date, orientation and solar parameters cannot establish those limits reliably. We therefore use “apparent twilight” without deciding whether it represents dawn or dusk. [9]
MIR: warm light does not replace the landscape
In Tanum Countryhouse, warm light reaches the timber and several nearby trunks. Contrast does more than separate building from landscape: it establishes continuity between them. The ground remains darker and the house appears in fragments. The reading of low-angle light follows from those accents rather than knowledge of a production time.
The second view moves away towards the water. An overcast sky maintains more even ambient lighting, relating the house to rock, forest and distant mountains. The camera changes too: we cannot attribute the entire difference to light. The images perform complementary tasks, one closer to surfaces and the other to the building’s placement.
In The Whale, this roof view shows texture, slopes and small figures on the horizon. Broad sky light makes paving distinguishable and establishes a relationship of scale. Compared with a distant exterior view, architecture here is explained as ground close to the observer.
In the dark frontal view, roof and reflection concentrate the scene’s definition. The background loses detail and the building gains a more isolated presence. The image might evoke a light transition, a stormy sky or deliberate tonal treatment; we lack enough information to choose between them. That ambiguity is part of the analysis: atmosphere works even when the clock cannot be reconstructed.
Play-Time: from diffuse light to localised colour
The first SPA image uses diffuse light. Building, path and grass remain distinguishable without a dominant division between brightly lit surfaces and deep shadows. That regime supports a combined reading of ground and architecture; material changes and the route’s lines sustain the hierarchy.
The road view offers warmer, more directional contrast. Façade planes separate from shaded ground and the house relates to nearby volumes. Distance and the side from which the project is presented have also changed. The comparison shows two visual arguments; it is not an isolated test of time-of-day effects.
The Oval uses warm side light to make thickness and repetition visible. Shadows within openings contrast with illuminated edges. Façade colour participates in the effect: turning its warm tone into a measure of solar position would be unreliable. Classification considers sky, light direction and shadows together.
In CXF Málaga, blue and red light organise a nearby space and concentrate attention on figures, vegetation and vertical elements. Colour introduces a different condition of use from the daylight plaza in the same portfolio. Without a legible exterior sky, this image is recorded as an interior with time unassigned. Its darkness describes a relationship between sources and surfaces, not necessarily a night.
Luxigon: the house emerges when its interior lights up
Villa Necklace offers the corpus’s closest comparison to a shared frame. In the daylight view, forest and glass reflections overlap. Horizontal building lines emerge among trunks, but identifying them requires distinguishing relatively small changes within a continuous vegetation scene.
The night view retains very similar framing. The forest loses definition, and lit interiors make parts of the house recognisable that shared reflections with vegetation during the day. Hierarchy changes: from the building as a landscape layer to the building as a set of visible spaces within it. This is not a perfectly controlled experimental pair; we do not know which other parameters changed between versions.
In Lightwalk, central light and reflections organise the depth of a large interior. The interchange representation makes routes and scale differences between users and surfaces legible. We do not use it to infer an exterior time or validate the lighting levels planned by the project. [10]
This second image reduces the clarity of some surfaces and concentrates light on others. The portfolio filename includes DUSK, but the sky offers no reference that verifies the temporal regime from the image. We retain that name in the source data while keeping the interior category. Editorial intention and visual observation are related but distinct information.
JVA Renders: a room and a plaza in different light
In The Breathing House, the daylight view relates wall and suspended fabric textures to sky and sea. The exterior occupies a large opening and provides enough reference for a daylight reading, although the viewpoint is inside the room. The nearby surface and landscape share a presence.
In the night version, the landscape is reduced to outlines and reflections. Localised illumination and the person beside the opening make immediate space more present. Moving between these views changes which surfaces we recognise, as well as the framing. The comparison describes a represented experience; it does not demonstrate comfort or climatic functioning of the concept.
By day, The Sunken City presents levels, routes and relationships between the plaza and surrounding frontages. Clear ground planes make its organisation distinguishable. Glass participates through reflections and brightness differences, while figures distributed across the plaza supply scale to a broad space.
In the apparent twilight view, illuminated edges and building surfaces gain weight. The sky retains definition and a warm horizon band; natural and artificial light share the scene. The plaza remains legible, but its presentation proposes another condition of activity. Neither the filename’s time label nor the atmosphere establishes a solar simulation or an executable lighting design.
What can be counted, and what remains outside
The bars show how many images in this selection we assigned to each apparent regime. They total 32: 16 daylight, 3 with warm low-angle light, 1 apparent twilight, 3 night, 7 interiors with time unassigned and 2 undetermined. The last two categories are not equivalent to night and are not redistributed to complete the chart.
| Project | Images | Daylight | Warm low-angle | Twilight | Night | Time unassigned |
|---|---|---|---|---|---|---|
| Tanum Countryhouse | 4 | 3 | 1 | 0 | 0 | 0 |
| The Whale | 4 | 2 | 0 | 0 | 0 | 2 |
| SPA | 3 | 2 | 1 | 0 | 0 | 0 |
| CXF Málaga | 3 | 1 | 0 | 0 | 0 | 2 |
| The Oval | 2 | 1 | 1 | 0 | 0 | 0 |
| Villa Necklace | 4 | 3 | 0 | 0 | 1 | 0 |
| Lightwalk | 4 | 0 | 0 | 0 | 0 | 4 |
| The Breathing House | 4 | 2 | 0 | 0 | 1 | 1 |
| The Sunken City | 4 | 2 | 0 | 1 | 1 | 0 |
| Total | 32 | 16 | 3 | 1 | 3 | 9 |
In the table, “time unassigned” combines the seven interiors and two undetermined images; the chart separates them. Choosing eight images per studio is an editorial sampling rule, not a proportion found in their portfolios. Several images belong to the same project and do not constitute independent observations of a market preference.
The set is useful for identifying representation mechanisms. It cannot establish that daylight is more effective because it appears more often, or that twilight is rare across the industry because only one case is assigned. Nor does it provide a sufficient basis for comparing frequencies by country, typology, year or competition status.
Four regimes, four editorial decisions
Daylight can support a simultaneous reading of ground, façades and context. In SPA and Tanum, daylight views show ground relationships that other images concentrate or leave in shade. This does not make daylight neutral: overcast sky and directional sun create different divisions between planes.
Warm low-angle light selects surfaces. In Tanum it connects timber and trunks; in The Oval it separates faces, openings and thickness. Its usefulness depends on where it falls. If the plane explaining the project remains shaded, an attractive scene may provide less information than a presentation’s opening requires.
Twilight offers the possibility of keeping context legible while artificial sources gain presence. In The Sunken City, plaza, sky and illuminated interiors coexist. It is useful to check that this coexistence supports the project’s argument and does not conceal spatial relationships beneath a colour effect.
Night shifts the reading towards what is illuminated. Villa Necklace makes some rooms more recognisable as the forest darkens. The Breathing House brings experience towards immediate space and reduces landscape information. A night view can explain occupation and interior-exterior continuity while requiring other images to show materials, boundaries or context clearly enough.
Choosing light for a series
Before selecting a sky, decide what each view should explain. A site image, an arrival image and a room image need not repeat the same lighting condition. They need to maintain a comprehensible relationship with the project and with one another.
For a more precise comparison of alternatives, it helps to retain camera, geometry, materials and exposure scale, and record which sources change. If framing changes too, the comparison may remain editorially valuable but no longer isolates illumination. The Villa Necklace pair approaches that comparison; the SPA, Tanum and JVA concept views change other elements.
Reviewing a night scene should involve what remains visible, where represented light comes from and which relationships are lost. An attractive render can propose an atmosphere; checking illumination levels, glare, safety or energy consumption requires separate documentation and calculation. The image can accompany that verification, not replace it.
A series gains depth when lighting conditions perform different tasks: showing the site, separating form, relating uses and bringing an experience closer. Coherence does not require repeating a time of day. It requires each image to have a reason to be there.
For an image series: assign each lighting condition a job, not just a different mood. If two frames make the same point with different skies, one may be redundant. If the light reveals another way of using the space, both earn their place.
Method and scope
Exploratory study with purposive selection closed on 1 October 2026: 32 images of nine projects, eight per each of four studios. The recording unit is the image, not the studio or project. Selection seeks lighting diversity and internal comparisons; it is not a probability sample or an exhaustive portfolio corpus.
Classification comes from one editorial visual review, with evidence and confidence recorded for each image. Inter-rater agreement has not been calculated. Categories are mutually exclusive. Filenames are retained as source information and do not independently determine a category. Actual times, exposure, colour temperature and physical luminance are not estimated from pixels.
The register retains authorship, project, view type, available location and conceptual status where documented. Production years and competition statuses not established by sources remain unverified; upload date is not treated as render date. Nor is a reference project’s region equated with a measurement of the represented climate.
There was no survey, eye tracking or preference experiment. JVA’s two projects are its own independent, unofficial NoName conceptual studies, included under the same descriptive criteria. Their analysis is not an external evaluation of the studio. Reproduced images retain framing and credits; the comparison does not modify the original renders.
Sources and credits
1. MIR. Tanum Countryhouse. Jensen & Skodvin. https://www.mir.no/work/tanum-countryhouse
2. MIR. The Whale. Dorte Mandrup. https://www.mir.no/work/the-whale
3. Play-Time. SPA. TITAN. https://www.play-time.es/project/spa/
4. Play-Time. CXF Málaga. BAAS. https://www.play-time.es/project/cxf-malaga/
5. Play-Time. The Oval. Chris Precht. https://www.play-time.es/project/the-oval/
6. Luxigon. Portfolio: Villa Necklace, REX; Lightwalk, Dominique Perrault Architecture. https://www.luxigon.com/carrousels1
7. JVA Renders. The Breathing House — Setouchi. Independent conceptual study by NoName. https://jvarenders.com/projects/the-breathing-house-setouchi/
8. JVA Renders. The Sunken City — CityWave, Milan. Independent conceptual study by NoName. https://jvarenders.com/projects/the-sunken-city-citywave-milan-2/
9. National Weather Service / NOAA. Three Types of Twilight. Astronomical definitions, not render classification. https://www.weather.gov/lmk/twilight-types
10. Dominique Perrault Architecture. Lightwalk — Gangnam Intermodal Transit Center. Project programme. https://perraultarchitecture.com/en/projects/lightwalk-gangnam-intermodal-transit-center/
