ReadonlydistanceFrom the ray's origin to pointOnRay: three's distance.
ReadonlydistanceBetween the ray and the primitive: three's distanceToRay (points).
ReadonlyindexThe primitive's entry (see the file comment).
ReadonlypointThe primitive's point nearest the ray: the point itself, or the point on the segment (three's point for lines).
ReadonlypointThe ray's point nearest the primitive (three's point for Points).
One hit of a primitive raycast, in the tree's space.