AR wayfinding · night, smoke & whiteout

Heads-up wayfinding

Hold the phone up. The camera shows what is left of the world and the overlay paints what is not visible any more: the rally point, HLZ, ICP or nearest safe refuge from the incident map as a floating marker with distance, climb and walking ETA, a ground chevron path toward it, and when the target is outside the lens a TURN LEFT / RIGHT chevron at the edge with the exact degrees. A guidance tone speeds up and the phone pulses as you come onto bearing, so it works with the screen in a pocket. When visibility is nil, switch to synthetic vision — the same cues on a black horizon. Navigation aid only: a magnetometer near steel or a cracked slab lies; check the map and your team.