/// <summary>
/// Create internal octree node (eg not the root octree node).
/// </summary>
internal OctreeCullingNode(OctreeCullingNode parent, Vector3 index, BoundingBox boundingBox, uint divisionsLeft)
{
// store octree data and init
_parentOctree = parent;
_indexInParent = index;
_octreeData = parent._octreeData;
_divisionsLeft = divisionsLeft;
InitOctreeBox(boundingBox);
}
public SphericalOctree(int lvl, long side)
{
Data = new OctreeData()
{
WorldSide = side
};
Level = lvl;
}
/// <summary>
/// Create the octree at top level, eg covering the whole screen.
/// </summary>
/// <param name="boundingBox">The starting bounding box of the entire octree. Node: nodes that are outside this box will not be culled properly.</param>
/// <param name="maxDivisions">How many times we can divide this octree until reaching minumum size.</param>
public OctreeCullingNode(BoundingBox boundingBox, uint maxDivisions = 6)
{
// create octree data
_octreeData = new OctreeData();
_octreeData.Root = this;
_octreeData.MaxDivisions = maxDivisions;
_divisionsLeft = maxDivisions;
// init octree
InitOctreeBox(boundingBox);
}
private SphericalOctree(int lvl, OctreeData data)
{
Level = lvl;
Data = data;
}
private Octree(int lvl, OctreeData data)
{
Level = lvl;
Data = data;
}