Drag: look around
Scroll: zoom
Click a floor circle or the map: walk there
Arrow keys: up / down walk to the nearest viewpoint, left / right turn
R: measure a distance (click 2 points)
D: dollhouse view (drag = orbit, right-drag = pan, scroll = zoom, click a circle = dive back in)
F: cycle floors (in dollhouse)
V: swap mesh / point-cloud (in dollhouse)
C: edit mode (drag nodes on the map, set the start view)
Click a coloured disc: open its tag
Photo mode: frame in 16:9 and capture at the chosen size
T: hide / show tags
M: hide / show map
G: color grade panel
?demo=1 = synthetic room