Exemplo n.º 1
0
 /// <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);
 }
Exemplo n.º 2
0
        /// <summary>
        /// Add a new child node into one of the subdivision branches.
        /// This also create the subdivision octree if needed.
        /// </summary>
        protected void AddToSubTree(Node node, int x, int y, int z)
        {
            // create the subdivision branch if needed
            if (_childOctrees[x, y, z] == null)
            {
                _childOctrees[x, y, z] = new OctreeCullingNode(this, new Vector3(x, y, z), _childBoundingBoxes[x, y, z], _divisionsLeft - 1);
            }

            // add child node to branch
            _childOctrees[x, y, z].PushToTree(node);
        }
Exemplo n.º 3
0
 /// <summary>
 /// Called whenever we need to remove a node from the octree.
 /// </summary>
 /// <param name="node">Node to push into tree.</param>
 protected void RemoveFromTree(Node node)
 {
     // remove from all octree nodes
     foreach (Node linked in node.LinkedNodes)
     {
         OctreeCullingNode octreeNode = linked as OctreeCullingNode;
         if (octreeNode != null)
         {
             octreeNode.RemoveFromSelf(node);
         }
     }
 }