add test option ObjectsCullingByDistance. In future, if true, it may

prevent sending objects outside view range to viewers. DO NOT SET TRUE
 unless testing it. Code still not completei!!!

OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs

@@ -340,6 +340,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private Prioritizer m_prioritizer;
         private bool m_disableFacelights = false;
 
+        // needs optimazation
+        private HashSet<SceneObjectGroup> GroupsInView = new HashSet<SceneObjectGroup>();
+
         private bool m_VelocityInterpolate = false;
         private const uint MaxTransferBytesPerPacket = 600;
 
@@ -3979,6 +3982,21 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             IEntityUpdate iupdate;
             Int32 timeinqueue; // this is just debugging code & can be dropped later
 
+            bool doCulling = m_scene.ObjectsCullingByDistance;
+            float cullingrange = 64.0f;
+            HashSet<SceneObjectGroup> GroupsNeedFullUpdate = new HashSet<SceneObjectGroup>();
+            Vector3 mycamera = Vector3.Zero;
+            Vector3 mypos = Vector3.Zero;
+            ScenePresence mysp = (ScenePresence)SceneAgent;
+            if(mysp != null && !mysp.IsDeleted)
+            {
+                cullingrange = mysp.DrawDistance + m_scene.ReprioritizationDistance +16f;
+                mycamera = mysp.CameraPosition;
+                mypos = mysp.AbsolutePosition;
+            }
+            else
+                 doCulling = false;
+
             while (updatesThisCall < maxUpdates)
             {
                 lock (m_entityUpdates.SyncRoot)
@@ -4059,6 +4077,28 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                         }
                     }
 
+                    if(doCulling && !part.ParentGroup.IsAttachment)
+                    {
+                        lock(GroupsInView)
+                        {
+                            if(!GroupsInView.Contains(part.ParentGroup))
+                            {
+                                Vector3 partpos = part.ParentGroup.AbsolutePosition;
+                                float dcam = (partpos - mycamera).LengthSquared();
+                                float dpos = (partpos - mypos).LengthSquared();
+                                if(dcam < dpos)
+                                    dpos = dcam;
+                                dpos = (float)Math.Sqrt(dpos) + part.ParentGroup.GetBoundsRadius();
+                                if(dpos > cullingrange)
+                                    continue;
+ 
+                                if(!GroupsNeedFullUpdate.Contains(part.ParentGroup))
+                                   GroupsNeedFullUpdate.Add(part.ParentGroup);
+                                continue;
+                            }
+                        }
+                    }
+
                     if (part.Shape != null && (part.Shape.SculptType == (byte)SculptType.Mesh))
                     {
                         // Ensure that mesh has at least 8 valid faces
@@ -4247,8 +4287,21 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 SendKillObject(m_killRecord);
                 m_killRecord.Clear();
             }
-            #endregion
 
+            lock(GroupsNeedFullUpdate)
+            {
+                if(GroupsNeedFullUpdate.Count > 0)
+                {
+                    foreach(SceneObjectGroup grp in GroupsNeedFullUpdate)
+                    {
+                        grp.ScheduleGroupForFullUpdate();
+                        lock(GroupsInView)
+                            GroupsInView.Add(grp);
+                    }
+                    GroupsNeedFullUpdate.Clear();
+                }
+            }
+            #endregion
 
         }
 
@@ -4282,10 +4335,81 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         
         public void ReprioritizeUpdates()
         {
+            CheckGroupsInView();
             lock (m_entityUpdates.SyncRoot)
                 m_entityUpdates.Reprioritize(UpdatePriorityHandler);
         }
 
+        public void CheckGroupsInView()
+        {
+            bool doCulling = m_scene.ObjectsCullingByDistance;
+            if(!doCulling)
+                return;
+            float cullingrange = 64.0f;
+            Vector3 mycamera = Vector3.Zero;
+            Vector3 mypos = Vector3.Zero;
+            ScenePresence mysp = (ScenePresence)SceneAgent;
+            if(mysp != null && !mysp.IsDeleted)
+            {
+                cullingrange  = mysp.DrawDistance + m_scene.ReprioritizationDistance + 16f;
+                mycamera = mysp.CameraPosition;
+                mypos = mysp.AbsolutePosition;
+            }
+            else
+                 return;
+
+            HashSet<SceneObjectGroup> NewGroupsInView = new HashSet<SceneObjectGroup>();
+            HashSet<SceneObjectGroup> GroupsNeedFullUpdate = new HashSet<SceneObjectGroup>();
+
+            lock(GroupsInView)
+            {
+            EntityBase[] entities = m_scene.Entities.GetEntities();
+            foreach (EntityBase e in entities)
+            {
+                if (e != null && e is SceneObjectGroup && !((SceneObjectGroup)e).IsAttachment)
+                {
+                    SceneObjectGroup grp = (SceneObjectGroup)e;
+                    Vector3 grppos = grp.AbsolutePosition;
+                    float dcam = (grppos - mycamera).LengthSquared();
+                    float dpos = (grppos - mypos).LengthSquared();
+                    if(dcam < dpos)
+                        dpos = dcam;
+                    dpos = (float)Math.Sqrt(dpos) + grp.GetBoundsRadius();
+                    if(dpos > cullingrange)
+                    {
+                        if(GroupsInView.Contains(grp))
+                        {
+                            GroupsInView.Remove(grp);
+                            if (!m_killRecord.Contains(grp.LocalId))
+                                m_killRecord.Add(grp.LocalId);
+                           }
+                        }
+                    else
+                    {
+                        if(!GroupsInView.Contains(grp) && !GroupsNeedFullUpdate.Contains(grp))
+                            GroupsNeedFullUpdate.Add(grp);
+                        NewGroupsInView.Add(grp);
+                        }
+                    }
+                }
+            }
+
+            GroupsInView = NewGroupsInView;
+
+            if (m_killRecord.Count > 0)
+            {
+                SendKillObject(m_killRecord);
+                m_killRecord.Clear();
+            }
+
+            if(GroupsNeedFullUpdate.Count > 0)
+            {
+                foreach(SceneObjectGroup grp in GroupsNeedFullUpdate)
+                    grp.ScheduleGroupForFullUpdate();
+            }
+            GroupsNeedFullUpdate.Clear();
+        }
+
         private bool UpdatePriorityHandler(ref uint priority, ISceneEntity entity)
         {
             if (entity != null)

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -803,9 +803,9 @@ namespace OpenSim.Region.Framework.Scenes
         public UpdatePrioritizationSchemes UpdatePrioritizationScheme { get; set; }
         public bool IsReprioritizationEnabled { get; set; }
         public float ReprioritizationInterval { get; set; }
-        public float RootReprioritizationDistance { get; set; }
+        public float ReprioritizationDistance { get; set; }
-        public float ChildReprioritizationDistance { get; set; }
         private float m_minReprioritizationDistance = 32f;
+        public bool ObjectsCullingByDistance = false;
 
         public AgentCircuitManager AuthenticateHandler
         {
@@ -1185,15 +1185,15 @@ namespace OpenSim.Region.Framework.Scenes
                     = interestConfig.GetBoolean("ReprioritizationEnabled", IsReprioritizationEnabled);
                 ReprioritizationInterval
                     = interestConfig.GetFloat("ReprioritizationInterval", ReprioritizationInterval);
-                RootReprioritizationDistance
+                ReprioritizationDistance
-                    = interestConfig.GetFloat("RootReprioritizationDistance", RootReprioritizationDistance);
+                    = interestConfig.GetFloat("RootReprioritizationDistance", ReprioritizationDistance);
-                ChildReprioritizationDistance
+
-                    = interestConfig.GetFloat("ChildReprioritizationDistance", ChildReprioritizationDistance);
+                if(ReprioritizationDistance < m_minReprioritizationDistance)
+                    ReprioritizationDistance = m_minReprioritizationDistance;
+
+                ObjectsCullingByDistance
+                    = interestConfig.GetBoolean("ObjectsCullingByDistance", ObjectsCullingByDistance);
 
-                if(RootReprioritizationDistance < m_minReprioritizationDistance)
-                    RootReprioritizationDistance = m_minReprioritizationDistance;
-                if(ChildReprioritizationDistance < m_minReprioritizationDistance)
-                    ChildReprioritizationDistance = m_minReprioritizationDistance;
 
                 RootTerseUpdatePeriod = interestConfig.GetInt("RootTerseUpdatePeriod", RootTerseUpdatePeriod);
                 ChildTerseUpdatePeriod = interestConfig.GetInt("ChildTerseUpdatePeriod", ChildTerseUpdatePeriod);
@@ -1252,8 +1252,7 @@ namespace OpenSim.Region.Framework.Scenes
             RootRotationUpdateTolerance = 0.1f;
             RootVelocityUpdateTolerance = 0.001f;
             RootPositionUpdateTolerance = 0.05f;
-            RootReprioritizationDistance = m_minReprioritizationDistance;
+            ReprioritizationDistance = m_minReprioritizationDistance;
-            ChildReprioritizationDistance = m_minReprioritizationDistance;
 
             m_eventManager = new EventManager();
 

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -1567,6 +1567,39 @@ namespace OpenSim.Region.Framework.Scenes
 
         #endregion
 
+        private float? m_boundsRadius = null;
+
+        public float GetBoundsRadius()
+        {
+        // this may need more threading work
+            if(m_boundsRadius == null)
+            {
+                float res = 0;
+                SceneObjectPart p;
+                SceneObjectPart[] parts;
+                float partR;
+                lock (m_parts)
+                {
+                    parts = m_parts.GetArray();
+                }
+
+                int nparts = parts.Length;
+                for (int i = 0; i < nparts; i++)
+                {
+                    p = parts[i];
+                    partR = p.Scale.Length();
+                    if(p != RootPart)
+                        partR += p.OffsetPosition.Length();
+                    if(partR > res)
+                        res = partR;
+                }
+                m_boundsRadius = res;
+                return res;
+            }
+
+            return m_boundsRadius.Value;
+        }
+
         public void GetResourcesCosts(SceneObjectPart apart,
             out float linksetResCost, out float linksetPhysCost, out float partCost, out float partPhysCost)
         {
@@ -4596,14 +4629,11 @@ namespace OpenSim.Region.Framework.Scenes
             if (nparts <= 1)
                 return gc;
 
-            Quaternion parentRot = RootPart.RotationOffset;
             Vector3 pPos;
 
             // average all parts positions
             for (int i = 0; i < nparts; i++)
             {
-                // do it directly
-                //                gc += parts[i].GetWorldPosition();
                 if (parts[i] != RootPart)
                 {
                     pPos = parts[i].OffsetPosition;
@@ -4613,8 +4643,6 @@ namespace OpenSim.Region.Framework.Scenes
             }
             gc /= nparts;
 
-            // relative to root:
-//            gc -= AbsolutePosition;
             return gc;
         }
 
@@ -4661,30 +4689,6 @@ namespace OpenSim.Region.Framework.Scenes
             return Ptot;
         }
 
-        /// <summary>
-        /// If the object is a sculpt/mesh, retrieve the mesh data for each part and reinsert it into each shape so that
-        /// the physics engine can use it.
-        /// </summary>
-        /// <remarks>
-        /// When the physics engine has finished with it, the sculpt data is discarded to save memory.
-        /// </remarks>
-/*        
-        public void CheckSculptAndLoad()
-        {
-            if (IsDeleted)
-                return;
-
-            if ((RootPart.GetEffectiveObjectFlags() & (uint)PrimFlags.Phantom) != 0)
-                return;
-
-//            m_log.Debug("Processing CheckSculptAndLoad for {0} {1}", Name, LocalId);
-
-            SceneObjectPart[] parts = m_parts.GetArray();
-
-            for (int i = 0; i < parts.Length; i++)
-                parts[i].CheckSculptAndLoad();
-        }
-*/
         /// <summary>
         /// Set the user group to which this scene object belongs.
         /// </summary>

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -350,6 +350,7 @@ namespace OpenSim.Region.Framework.Scenes
         protected int  m_reprioritizationLastTime;
         protected bool m_reprioritizationBusy;
         protected Vector3 m_reprioritizationLastPosition;
+        protected float m_reprioritizationLastDrawDistance;
         
         private Quaternion m_headrotation = Quaternion.Identity;
 
@@ -1047,6 +1048,8 @@ namespace OpenSim.Region.Framework.Scenes
             AbsolutePosition = posLastMove = posLastSignificantMove = CameraPosition =
                m_reprioritizationLastPosition = ControllingClient.StartPos;
 
+            m_reprioritizationLastDrawDistance = DrawDistance;
+
             // disable updates workjobs for now
             childUpdatesBusy = true;  
             m_reprioritizationBusy = true;
@@ -2130,6 +2133,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                 // priority uses avatar position only
                 m_reprioritizationLastPosition = AbsolutePosition;
+                m_reprioritizationLastDrawDistance = DrawDistance;
                 m_reprioritizationLastTime = Util.EnvironmentTickCount() + 15000; // delay it
                 m_reprioritizationBusy = false;
 
@@ -3986,24 +3990,24 @@ namespace OpenSim.Region.Framework.Scenes
             if(m_reprioritizationBusy)
                 return;
 
+            float limit = Scene.ReprioritizationDistance;
+            bool byDrawdistance = Scene.ObjectsCullingByDistance;
+            if(byDrawdistance)
+                byDrawdistance = (Math.Abs(DrawDistance-m_reprioritizationLastDrawDistance) > 0.5f * limit);
+
             int tdiff =  Util.EnvironmentTickCountSubtract(m_reprioritizationLastTime);
-            if(tdiff < Scene.ReprioritizationInterval)
+            if(!byDrawdistance && tdiff < Scene.ReprioritizationInterval)
                 return;
             // priority uses avatar position
             Vector3 pos = AbsolutePosition;
             Vector3 diff = pos - m_reprioritizationLastPosition;
-            float limit;
-            if(IsChildAgent)
-                limit = (float)Scene.ChildReprioritizationDistance;
-            else
-                limit = (float)Scene.RootReprioritizationDistance;
-
             limit *= limit;
-            if (diff.LengthSquared() < limit)
+            if (!byDrawdistance && diff.LengthSquared() < limit)
                 return;
 
             m_reprioritizationBusy = true;
             m_reprioritizationLastPosition = pos;
+            m_reprioritizationLastDrawDistance = DrawDistance;
 
             Util.FireAndForget(
                 o =>

OpenSim/Region/OptionalModules/World/SceneCommands/SceneCommandsModule.cs

@@ -156,7 +156,6 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
             cdl.AddRow("active", m_scene.Active);
             cdl.AddRow("animations", m_scene.DebugAnimations);
             cdl.AddRow("appear-refresh", m_scene.SendPeriodicAppearanceUpdates);
-            cdl.AddRow("child-repri", m_scene.ChildReprioritizationDistance);
             cdl.AddRow("client-pos-upd", m_scene.RootPositionUpdateTolerance);
             cdl.AddRow("client-rot-upd", m_scene.RootRotationUpdateTolerance);
             cdl.AddRow("client-vel-upd", m_scene.RootVelocityUpdateTolerance);
@@ -219,15 +218,6 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
                     m_scene.SendPeriodicAppearanceUpdates = newValue;     
             }
 
-            if (options.ContainsKey("child-repri"))
-            {
-                double newValue;
-
-                // FIXME: This can only come from the console at the moment but might not always be true.
-                if (ConsoleUtil.TryParseConsoleDouble(MainConsole.Instance, options["child-repri"], out newValue))
-                    m_scene.ChildReprioritizationDistance = (float)newValue;                
-            }
-
             if (options.ContainsKey("client-pos-upd"))
             {
                 float newValue;

bin/OpenSim.ini.example

@@ -1122,6 +1122,9 @@
      ;; SimpleAngularDistance, FrontBack
      ; UpdatePrioritizationScheme = BestAvatarResponsiveness
 
+	; TEST OPTION KEEP AS FALSE
+	; if true, don't send object updates if outside view range
+	; ObjectsCullingByDistance = false	 
 
 [MediaOnAPrim]
     ;# {Enabled} {} {Enable Media-on-a-Prim (MOAP)} {true false} true

bin/OpenSimDefaults.ini

@@ -2017,6 +2017,10 @@
     RootReprioritizationDistance = 10.0
     ChildReprioritizationDistance = 20.0
 	
+	; TEST OPTION KEEP AS FALSE
+	; if true, don't send object updates if outside view range
+	ObjectsCullingByDistance = false
+
     ; If n > 1, only every n UDP terse updates will be sent to observers of an avatar that are in the same region
     ; Updates will always be sent to the avatar that the update addresses and if av velocity is effectively zero (to prevent drift due to missing updates).
     ; n > 1 will reduce UDP traffic but will lead to laggier movement observed in other avatars.