The display family.
Filed, built, checked.

A thin, transparent display node that mounts to the inside of existing glass without adhesive, and sends its light only outward and downward, into the cone a passer-by sees. From inside, the glass stays clear and dark. The node is a physical thing; the engines on this page draw its cone, they do not build it.

In software: the Mosaic + Emission demonstrator draws each node's downward cone and keeps the interior face dark.

One master picture is cut into fragments for separate screens that do not touch: glass, storefronts, the windshields on a lot. The gaps and the structure between them are classed as dead zones and receive no pixels, so the picture is cancelled across the gap rather than stretched over it. Every screen runs on a clock held within one frame of the others; when a node is moved, lost or added, the picture re-slices. With predictive coherence each node predicts its own state and is sent a payload only when it diverges, so a node that loses contact carries on by itself. A runtime ledger measures each node's contribution and shares the revenue by what was actually shown.

Predictive coherence, a little closer. Every node runs the same deterministic model of the programme and advances it by itself between sparse reconciliation updates. When an update arrives, the node measures how far its own prediction was off, corrects by a fixed gain, and takes the size of that error as its margin: a small error lets it run longer alone, a large one shortens the interval, and a model that does not match falls back to plain synchronisation. The nodes keep relaxed local time references rather than a precision clock distributed to them continuously, and where a node sits never enters the content state: moving a node changes the geometry only.

In software: dead-space cancellation and predictive coherence; the advertising ledger and impression model; the Spektx Display Engine, the dead-space demonstrator and the Mosaic + Emission demonstrator.

Projection onto a dome, a cylinder or an irregular wall from a scan of the surface itself, in place of weeks of hand calibration. For every projector the engine works out how far each ray travels and how much to pre-distort the picture so it lands straight; declares a void where there is nothing to hit; redistributes the picture around the void in exact proportion; and blends the overlap where two projectors meet. The same math exists twice, as a reference engine and live in a browser, written to one contract.

In software: the warp and void driver; the warp pipeline; the predistortion engine for the browser.

Aerial surfaces that carry no lights of their own. A projector on the ground lights them. The engine finds each surface from the infrared returns of its markers, predicts where it will be at the instant the light arrives, corrects the picture for its angle and its range, deletes the air between the surfaces so nothing is projected into empty sky, and blanks the beam the moment something untracked crosses it. The same show runs indoors or out, from a station that stands still or one that moves.

In software: the aerial mapping engine; the Aerial night lake demonstrator. Patent pending in the United States, with an Australian consolidation.