FNode

World bounds

Children, 0 means invalid

If all 4 child nodes have a full set of leaf nodes (each descentant has 4 children all the way down)

If all descendant nodes are from the same waterbody.

Index to parent

Index to the water body that this tile possibly transitions to

Index into the water body render data array on the tree.

Add instance for rendering this node

Add nodes that intersect InMeshBounds.

Check if all conditions are met to potentially allow this and another node to render as one

If this node is allowed to be rendered, it means it can be rendered in place of all leaf nodes in its subtree.

Recursive function to query the height(prior to any displacement) at a given location, return false if no height could be found

Recursive function to query the bounds of a tile at a given location, return false if no leaf node could be found

Recursive function to select nodes visible from the current point of view

Recursive function to traverse down to the appropriate density level.