Skywatch

Skywatch — Controls

Observers

Drag a ballPosition an observer with a live shadow-map preview

+ Add ObserverBottom-right button spawns another observer at screen centre — place as many as you like; they accumulate

Click empty terrainDeselect / exit edit mode (precise meshes stay)

CalcRun the precise WASM viewshed and drop the pole

Re-CalcRecompute after edits — shown when a precise mesh exists

Console sliderTweaking radius / height / density / step / Z-step on a calculated observer re-enters edit mode (light returns, mesh greys to stale)

Edit capMany observers can coexist, but only one is editable at a time; editing a second evicts the first from edit mode (its mesh stays)

Camera

WASD / ArrowsFly the camera

Mouse dragLook around / orbit the target

ScrollZoom in / out

SpaceMouse6DOF fly/orbit (Linux: stop spacenavd first)

Reference

Observer statePer-observer pill in the sidebar: cyan EDIT, green CALCULATED, orange STALE, grey IDLE

Zone badgeTop-right pill — where the camera is as you fly through the mesh: green VISIBLE (in the seen volume), red SHADOW (blocked), amber UNDERGROUND (below terrain), grey OUTSIDE (beyond every viewshed), grey-pulsing PENDING (mesh still building)

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