ScatterEye

directionreadonly

Body-fixed direction of the eye from the body's center.

distancereadonly

Eye distance from the center, meters.

groundreadonly

And the radius of the ground under the eye, meters.

Separate from radius, and the separation is the whole of this selection's geometry. distance − radius is the height above the datum, which for a camera standing on a mountain is elevation + height — 687 m for a two-meter stance on Iapetus's rough site, which is three times the range and switches the whole field off. It is the same mistake terrainSelect records under "distance is measured to the ground, not to the datum", made again one object down. The caller samples the drawn field once per frame; over the couple of hundred meters this reaches, the ground moves by meters and one radius describes it.

levelreadonly

The subdivision level this body's rocks are addressed at.

radiusreadonly

The datum radius, which is what sizes a region at a level.