private void RegionLoadedDoWork(Scene scene)
        {
/* 
            // For testing on a single instance
            if (scene.RegionInfo.RegionLocX == 1004 && scene.RegionInfo.RegionLocY == 1000)
                return;
            // 
*/
            if(landTerrainChannel == null)
                landTerrainChannel = new RegionCombinerLargeTerrainChannel();
            
            lock (m_startingScenes)
                m_startingScenes.Add(scene.RegionInfo.RegionID, scene);

            RegionConnections regionConnections = new RegionConnections();
            regionConnections.ConnectedRegions = new List<RegionData>();
            regionConnections.RegionScene = scene;
            regionConnections.RegionLandChannel = scene.RequestModuleInterface<IParcelManagementModule>();
            regionConnections.RegionId = scene.RegionInfo.RegionID;
            regionConnections.X = scene.RegionInfo.RegionLocX;
            regionConnections.Y = scene.RegionInfo.RegionLocY;
            regionConnections.XEnd = (int)Constants.RegionSize;
            regionConnections.YEnd = (int)Constants.RegionSize;


            lock (m_regions)
            {
                bool connectedYN = false;

                foreach (RegionConnections conn in m_regions.Values)
                {
                    #region commented
                    /*
                    // If we're one region over +x +y
                    //xxy
                    //xxx
                    //xxx
                    if ((((int)conn.X * (int)Constants.RegionSize) + conn.XEnd 
                        == (regionConnections.X * (int)Constants.RegionSize)) 
                        && (((int)conn.Y * (int)Constants.RegionSize) - conn.YEnd 
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int) Constants.RegionSize)) -
                                    ((conn.X * (int) Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int) Constants.RegionSize)) -
                                    ((conn.Y * (int) Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd + conn.YEnd;
                        extents.X = conn.XEnd + conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the northwest of Scene{1}.  Offset: {2}.  Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName,
                                          offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);
                            
                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                    //If we're one region over x +y
                    //xxx
                    //xxx
                    //xyx
                    if ((((int)conn.X * (int)Constants.RegionSize)
                        == (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize) - conn.YEnd
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                    ((conn.X * (int)Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                    ((conn.Y * (int)Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd + conn.YEnd;
                        extents.X = conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the north of Scene{1}.  Offset: {2}. Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);
                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                    // If we're one region over -x +y
                    //xxx
                    //xxx
                    //yxx
                    if ((((int)conn.X * (int)Constants.RegionSize) - conn.XEnd
                        == (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize) - conn.YEnd
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                    ((conn.X * (int)Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                    ((conn.Y * (int)Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd + conn.YEnd;
                        extents.X = conn.XEnd + conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the northeast of Scene.  Offset: {2}. Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);


                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                    // If we're one region over -x y
                    //xxx
                    //yxx
                    //xxx
                    if ((((int)conn.X * (int)Constants.RegionSize) - conn.XEnd
                        == (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize)
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                    ((conn.X * (int)Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                    ((conn.Y * (int)Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd;
                        extents.X = conn.XEnd + conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the east of Scene{1} Offset: {2}. Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);

                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                        // If we're one region over -x -y
                        //yxx
                        //xxx
                        //xxx
                        if ((((int)conn.X * (int)Constants.RegionSize) - conn.XEnd
                            == (regionConnections.X * (int)Constants.RegionSize))
                            && (((int)conn.Y * (int)Constants.RegionSize) + conn.YEnd
                            == (regionConnections.Y * (int)Constants.RegionSize)))
                        {
                            Vector3 offset = Vector3.Zero;
                            offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                        ((conn.X * (int)Constants.RegionSize)));
                            offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                        ((conn.Y * (int)Constants.RegionSize)));

                            Vector3 extents = Vector3.Zero;
                            extents.Y = regionConnections.YEnd + conn.YEnd;
                            extents.X = conn.XEnd + conn.XEnd;

                            m_log.DebugFormat("Scene: {0} to the northeast of Scene{1} Offset: {2}. Extents:{3}",
                                              conn.RegionScene.RegionInfo.RegionName,
                                              regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                            scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);

                            connectedYN = true;
                            break;
                        }
                        */
                    #endregion

                    // If we're one region over +x y
                    //xxx
                    //xxy
                    //xxx


                    if ((int)conn.X + conn.XEnd
                        >= (regionConnections.X)
                        && ((int)conn.Y)
                        >= (regionConnections.Y))
                    {
                        connectedYN = DoWorkForOneRegionOverPlusXY(conn, regionConnections, scene);
                        break;
                    }

                    // If we're one region over x +y
                    //xyx
                    //xxx
                    //xxx
                    if ((((int)conn.X)
                        >= (regionConnections.X))
                        && (((int)conn.Y) + conn.YEnd
                        >= (regionConnections.Y)))
                    {
                        connectedYN = DoWorkForOneRegionOverXPlusY(conn, regionConnections, scene);
                        break;
                    }

                    // If we're one region over +x +y
                    //xxy
                    //xxx
                    //xxx
                    if ((((int)conn.X) + conn.YEnd
                        >= (regionConnections.X))
                        && (((int)conn.Y) + conn.YEnd
                        >= (regionConnections.Y)))
                    {
                        connectedYN = DoWorkForOneRegionOverPlusXPlusY(conn, regionConnections, scene);
                        break;

                    }
                }

                // If !connectYN means that this region is a root region
                if (!connectedYN)
                {
                    DoWorkForRootRegion(regionConnections, scene);
                }
            }
            // Set up infinite borders around the entire AABB of the combined ConnectedRegions
            AdjustLargeRegionBounds();
        }
        private void RegionLoadedDoWork(Scene scene)
        {
/* 
            // For testing on a single instance
            if (scene.RegionInfo.RegionLocX == 1004 && scene.RegionInfo.RegionLocY == 1000)
                return;
            // 
*/
            if(landTerrainChannel == null)
                landTerrainChannel = new RegionCombinerLargeTerrainChannel();
            
            lock (m_startingScenes)
                m_startingScenes.Add(scene.RegionInfo.RegionID, scene);

            // Give each region a standard set of non-infinite borders
            Border northBorder = new Border();
            northBorder.BorderLine = new Vector3(0, (int)Constants.RegionSize, (int)Constants.RegionSize);  //<---
            northBorder.CrossDirection = Cardinals.N;
            scene.NorthBorders[0] = northBorder;

            Border southBorder = new Border();
            southBorder.BorderLine = new Vector3(0, (int)Constants.RegionSize, 0);    //--->
            southBorder.CrossDirection = Cardinals.S;
            scene.SouthBorders[0] = southBorder;

            Border eastBorder = new Border();
            eastBorder.BorderLine = new Vector3(0, (int)Constants.RegionSize, (int)Constants.RegionSize);   //<---
            eastBorder.CrossDirection = Cardinals.E;
            scene.EastBorders[0] = eastBorder;

            Border westBorder = new Border();
            westBorder.BorderLine = new Vector3(0, (int)Constants.RegionSize, 0);     //--->
            westBorder.CrossDirection = Cardinals.W;
            scene.WestBorders[0] = westBorder;



            RegionConnections regionConnections = new RegionConnections();
            regionConnections.ConnectedRegions = new List<RegionData>();
            regionConnections.RegionScene = scene;
            regionConnections.RegionLandChannel = scene.LandChannel;
            regionConnections.RegionId = scene.RegionInfo.RegionID;
            regionConnections.X = scene.RegionInfo.RegionLocX;
            regionConnections.Y = scene.RegionInfo.RegionLocY;
            regionConnections.XEnd = (int)Constants.RegionSize;
            regionConnections.YEnd = (int)Constants.RegionSize;


            lock (m_regions)
            {
                bool connectedYN = false;

                foreach (RegionConnections conn in m_regions.Values)
                {
                    #region commented
                    /*
                    // If we're one region over +x +y
                    //xxy
                    //xxx
                    //xxx
                    if ((((int)conn.X * (int)Constants.RegionSize) + conn.XEnd 
                        == (regionConnections.X * (int)Constants.RegionSize)) 
                        && (((int)conn.Y * (int)Constants.RegionSize) - conn.YEnd 
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int) Constants.RegionSize)) -
                                    ((conn.X * (int) Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int) Constants.RegionSize)) -
                                    ((conn.Y * (int) Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd + conn.YEnd;
                        extents.X = conn.XEnd + conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the northwest of Scene{1}.  Offset: {2}.  Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName,
                                          offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);
                            
                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                    //If we're one region over x +y
                    //xxx
                    //xxx
                    //xyx
                    if ((((int)conn.X * (int)Constants.RegionSize)
                        == (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize) - conn.YEnd
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                    ((conn.X * (int)Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                    ((conn.Y * (int)Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd + conn.YEnd;
                        extents.X = conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the north of Scene{1}.  Offset: {2}. Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);
                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                    // If we're one region over -x +y
                    //xxx
                    //xxx
                    //yxx
                    if ((((int)conn.X * (int)Constants.RegionSize) - conn.XEnd
                        == (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize) - conn.YEnd
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                    ((conn.X * (int)Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                    ((conn.Y * (int)Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd + conn.YEnd;
                        extents.X = conn.XEnd + conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the northeast of Scene.  Offset: {2}. Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);


                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                    // If we're one region over -x y
                    //xxx
                    //yxx
                    //xxx
                    if ((((int)conn.X * (int)Constants.RegionSize) - conn.XEnd
                        == (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize)
                        == (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        Vector3 offset = Vector3.Zero;
                        offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                    ((conn.X * (int)Constants.RegionSize)));
                        offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                    ((conn.Y * (int)Constants.RegionSize)));

                        Vector3 extents = Vector3.Zero;
                        extents.Y = regionConnections.YEnd;
                        extents.X = conn.XEnd + conn.XEnd;

                        m_log.DebugFormat("Scene: {0} to the east of Scene{1} Offset: {2}. Extents:{3}",
                                          conn.RegionScene.RegionInfo.RegionName,
                                          regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                        scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);

                        connectedYN = true;
                        break;
                    }
                    */

                    /*
                        // If we're one region over -x -y
                        //yxx
                        //xxx
                        //xxx
                        if ((((int)conn.X * (int)Constants.RegionSize) - conn.XEnd
                            == (regionConnections.X * (int)Constants.RegionSize))
                            && (((int)conn.Y * (int)Constants.RegionSize) + conn.YEnd
                            == (regionConnections.Y * (int)Constants.RegionSize)))
                        {
                            Vector3 offset = Vector3.Zero;
                            offset.X = (((regionConnections.X * (int)Constants.RegionSize)) -
                                        ((conn.X * (int)Constants.RegionSize)));
                            offset.Y = (((regionConnections.Y * (int)Constants.RegionSize)) -
                                        ((conn.Y * (int)Constants.RegionSize)));

                            Vector3 extents = Vector3.Zero;
                            extents.Y = regionConnections.YEnd + conn.YEnd;
                            extents.X = conn.XEnd + conn.XEnd;

                            m_log.DebugFormat("Scene: {0} to the northeast of Scene{1} Offset: {2}. Extents:{3}",
                                              conn.RegionScene.RegionInfo.RegionName,
                                              regionConnections.RegionScene.RegionInfo.RegionName, offset, extents);

                            scene.PhysicsScene.Combine(conn.RegionScene.PhysicsScene, offset, extents);

                            connectedYN = true;
                            break;
                        }
                        */
                    #endregion

                    // If we're one region over +x y
                    //xxx
                    //xxy
                    //xxx


                    if ((((int)conn.X * (int)Constants.RegionSize) + conn.XEnd
                        >= (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize)
                        >= (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        connectedYN = DoWorkForOneRegionOverPlusXY(conn, regionConnections, scene);
                        break;
                    }

                    // If we're one region over x +y
                    //xyx
                    //xxx
                    //xxx
                    if ((((int)conn.X * (int)Constants.RegionSize)
                        >= (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize) + conn.YEnd
                        >= (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        connectedYN = DoWorkForOneRegionOverXPlusY(conn, regionConnections, scene);
                        break;
                    }

                    // If we're one region over +x +y
                    //xxy
                    //xxx
                    //xxx
                    if ((((int)conn.X * (int)Constants.RegionSize) + conn.YEnd
                        >= (regionConnections.X * (int)Constants.RegionSize))
                        && (((int)conn.Y * (int)Constants.RegionSize) + conn.YEnd
                        >= (regionConnections.Y * (int)Constants.RegionSize)))
                    {
                        connectedYN = DoWorkForOneRegionOverPlusXPlusY(conn, regionConnections, scene);
                        break;

                    }
                }

                // If !connectYN means that this region is a root region
                if (!connectedYN)
                {
                    DoWorkForRootRegion(regionConnections, scene);
                }
            }
            // Set up infinite borders around the entire AABB of the combined ConnectedRegions
            AdjustLargeRegionBounds();
        }