A LOD represents one level of detail of a model, rendered based on its distance from the viewer. It contains Meta_GeoGroup children.
If a Model only has one level of detail, this node is not required unless the model should not be rendered at all outside of a certain distance.
bool - When enabled, the GeoGroups inside are drawn when the view is within the specified InOut distance
vec2 - X = distance from view at which this LOD is active, Y = distance at which the LOD is hidden. e.g. (1,5) is visible when the view is between 1 and 5 metres from the object. Use Y=-1 for infinity (LOD never disappears)
vec3w - Position relative to the model origin point from which to calculate the distance to the view.