Toward a Theory of Voids: Black Fields and Broken Continuities
When control falters and the system cannot reconcile the scene, that failure becomes visible as black shapes and fractures cutting through the image.
Black Fields and Broken Continuities
Prolongance does not exist in isolation. The black forms and fractures in these images are simply one instance of a broader pattern in systems that promise continuity while obscuring their limitations. Remote sensing, architectural drawing, and the physiology of human vision all depend on zones they cannot fully account for, spaces that are liminal in both spatial and conceptual terms: neither fully inside nor outside their systems of description. The following sections trace three parallel ways of understanding those zones: as no-data fields in remote sensing, as poché in architectural representation, and as saccadic suppression in our own visual perception. Together, they offer a larger context for the black fields and distortions that run through my photographs, showing that these marks are not private quirks of a single device but part of a broader logic in how visual systems manage what they cannot fully resolve.
No-Data Fields: Remote Sensing and Prolongance
Mars rovers, planetary orbiters, Hubble, and JWST construct many of their pictures from mosaics of exposures, stitched onto geometric grids. Where no exposure lands on that grid, the pipeline assigns a special value: no data. In many public visualizations, these values often appear as pure black wedges, steps, or corners. The darkness does not belong to the landscape or the nebula. It marks a region where the camera and the geometry of the scene never successfully met.
Prolongance operates on a similar extended field of capture, but the source of its gaps is explicitly bodily. Working with a smartphone panorama engine, I move through the environment with the sensor in continuous capture. The software expects a compliant sweep across a stable scene. Instead, it is dragged through crossings, stairwells, beaches, trails, and crowds, subject to changes of pace and direction, to torsion in my torso and legs, to people and shadows that slide in and out of the frame. Where the algorithm can no longer reconcile these movements, it fails to assign plausible tiles to its own geometric canvas. The result is a black region that behaves very much like the no-data coverage in a Mars panorama, yet is generated by the friction between my body and the device.
Within the frame, these black areas no longer read as mere technical blanks. They become active shapes that carve the scene, advancing and receding against fractured ground, architecture, surf, or sky. They function as a second subject, an intrusive presence that eats into the world at the moment the apparatus loses confidence. None of these forms are drawn in after the fact, nor do they correspond to any independent object outside the imaging process. They are coverage voids, capture lacunae where my movement has outrun the device’s power to make sense of space and time.
Scientific imaging pipelines treat such voids as anomalies to be managed. In some outreach composites, they are cropped away or cosmetically filled so that a planet or nebula reads as continuous. In other cases, especially raw or engineering products, the no-data regions are left as unapologetic black wedges or steps explicitly marking areas the sensor did not cover. It is in these exposed no-data fields that I recognize the closest affinity with Prolongance. In both contexts, the void marks the point where the apparatus could not deliver a continuous account of the scene. In my work, that same failure is not incidental. It is invited into the composition and allowed to operate as shape and counterweight within the field.
Because the origin of these voids is inseparable from my own gait and decision-making, they are not only spatial but also temporal traces. They register the instants at which continuity collapses. A turn of the head, a hesitation on the landing, a misalignment between my stride and the algorithm’s sampling rhythm, each of these can produce a zone the camera cannot reconcile. In practice, these collapses rarely announce themselves as dramatic mistakes. Often, I am walking steadily, keeping roughly to my path and to the on-screen guide the device offers, feeling that the scan is proceeding as it should. At times, the sensor seems to drift of its own accord, or the capture simply halts, as if the system has decided that my movement no longer matches the scene it expects. Nothing in my body feels especially wrong at that instant. Only later, looking at the file, do I find a vertical slab of black occupying part of the street or a section of railing that has been swallowed entirely. The black field is not a symbol I chose and placed; it is the trace of a failed agreement between body, world, and device, a visible admission that the system could not resolve it.
In this sense, the no-data field in Prolongance becomes a kind of ethical marker. It refuses the fiction of total capture that underlies so much photographic and remote sensing practice. Some rover mosaics and satellite composites work hard to obscure their gaps; others leave them visible as black wedges or masked tiles. Prolongance aligns itself with this latter tendency and pushes it further, adopting the exposed gap as a central compositional and ethical element. It insists that there are places and instants the device cannot know, that the body can move in ways the camera cannot fully translate. When those limits appear as blunt black wedges in a photograph, they give viewers something to push against, a visible edge where the promise of seamless depiction breaks. Seen alongside the concepts that follow, these voids are the most direct expression of a larger pattern: that every system of capture depends on zones it cannot fully cover.
Architectural Poché / Photographic Poché
In architectural drawings, poché is the way a wall or column acquires mass. On plan and section, the solid parts of a building are often flooded with ink or dense hatching, so that rooms and corridors read as white space and the structure that holds them appears as a continuous dark field. Poché is not simply background; it is the thickened line where the drawing acknowledges that walls and columns have depth and mass, not just outline. It signals everything that is inside the wall: structure, services, stairs, storage, the hidden guts that make the apparently empty space inhabitable.
Architects use poché to separate what is legible from what is latent. The white areas in a plan show where bodies can move. The black areas mark where bodies cannot go, yet still shape every possible path. Sometimes, poché is purely structural, a heavy perimeter that anchors a façade. At other times, it becomes a place in its own right: a stair squeezed into the thickness of a wall, a shelf carved into a column, a secret room in the rafters. In that sense, poché is a reservoir of potential, the volume where the drawing admits that more is happening than the eye can immediately see.
The black fields that appear in Prolongance can be read as a kind of photographic poché. They occupy the edge conditions of the image, the places where the device cannot resolve the scene, and the software floods the region with solid black. In many Prolongance images, these regions behave less like empty background and more like architectural mass. A curved wedge of black presses against fractured pavement. Thick bands of black flank the staircase, enclosing the warped steps the way a pair of walls would. A black ribbon cuts through surf and sand like a retaining wall that has slipped out of alignment. These shapes have no physical counterpart, nor are they drawn in by hand, yet they function exactly as poché does in a plan: they give weight to the composition, they define what counts as navigable space and what counts as structural limit.
There is a further twist. In traditional drawings, poché usually represents what is known, even if it is unseen: the architect understands the wall and chooses to render it as solid. In Prolongance, the black fields often mark a zone that the camera does not fully know. They arise where the panorama engine has failed to reconcile parallax, speed, and direction, or where my body has taken a turn that exceeds the algorithm’s expectations. The image declares, in the language of poché, that there is thickness here, but the exact contents of that thickness are unknowable. What appears as solid visual mass is, in fact, the residue of a collapse in representation.
That ambiguity is where architectural poché and Prolongance begin to overlap conceptually. Poché in a building is the medium that holds services, structure, circulation, and all the messy infrastructure that allows the apparent clarity of rooms. Poché in Prolongance can be read as the place where the infrastructure of imaging hides. The smartphone’s assumptions, the stitching rules, the frame rate, the suppression of misalignments: all of that is buried in the black. Those regions become the drawing of the camera’s inner workings, concentrated into heavy silhouettes that cut into the field of vision. They are not outside the system; they are the system showing its thickness.
Because these images are durational, this photographic poché is also temporal. The black forms do not just mark where space becomes inaccessible; they mark where time becomes too complicated to be flattened into the scan. A fast turn on the stairs, a broken rhythm on the crosswalk, an irregular pause or stumble at the edge of the surf: each can produce a pocket of time that the panorama engine cannot weave into a continuous, legible strip of image. The resulting void behaves like the thickness of a wall in section. It is the time that sits between two adjacent fragments of experience, compressed into a dark volume that separates them while also binding them together. These dark pockets behave as liminal zones, neither fully image nor fully absence, where structure and time are present but not fully resolved.
Seen this way, Prolongance does not simply document space; it generates its own architecture. A stairwell image has a plan and section logic embedded inside it. The steps and landings read as white or lightly toned rooms. The black masses around them read as poché: the unseen thickness that shapes how I move. The same is true of crosswalk images. The broken pavement and stripes function as a kind of street plan, and the black sweep at the edge becomes the heavy urban fabric that constrains circulation. My body, registering as a fragmented figure or a stretched shadow, moves along the boundary between these zones, like a person inhabiting the line between room and wall.
This analogy does more than provide a metaphor; it offers a way to talk about the ethics of what is shown and what is withheld. Architectural poché has always carried a slight violence: in order to clarify the layout, it submerges entire thicknesses of material into undifferentiated black. Prolongance takes a similar move yet exposes the operation instead of naturalizing it. The black is not a neutral drafting convention. It is the visible sign that the camera’s internal logic and my body have collided. It is the record of what had to be sacrificed to produce a continuous vantage point, the mark of where representation thickens into opacity. Alongside no-data fields and the perceptual phenomena that follow, photographic poché underscores how much any apparent clarity depends on what has been pushed into darkness.
Next week: Saccadic Suppression. I will turn from architecture and remote sensing to vision itself, and to the ways our own eyes suppress gaps that Prolongance insists on keeping visible.