SceneAir

Since 0.7

The scene's air: its density (the buoyancy of bodies out of the water) and its wind (what their dry probes are dragged against).

Absent: no air forces.

Fields

Field	Type	Required	Default	Allowed values	Description
`density`	`number`	no	`1`		Air density, kg/m3, 0..10. Default 1.225 (sea level). A body lighter than the air it displaces rises. Outside is clamped (`air-out-of-range`).
`wind`	`SceneWind`	no			The wind. Absent: still air.