From 78ccadb27ec48e4d02c07d37bc45c5e0b23c47a7 Mon Sep 17 00:00:00 2001
From: Justin Clark-Casey (justincc)
Date: Wed, 6 Aug 2014 00:53:14 +0100
Subject: Add RootPositionUpdateTolerance, RootRotationUpdateTolerance, and
 RootVelocityUpdateTolerance parameters to [InterestManagement] in
 OpenSimDefaults.ini

These govern when AgentUpdates are sent to observers on position, rotation and velocity changes to an avatar (including the avatar themselves).
Higher values reduce AgentUpdate traffic but at a certain level will degrade smoothness of avatar and perceived avatar movement.
---
 OpenSim/Region/Framework/Scenes/Scene.cs |  7 +++++++
 bin/OpenSimDefaults.ini                  | 24 ++++++++++++++++--------
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index da99d4f..8268235 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -1035,6 +1035,13 @@ namespace OpenSim.Region.Framework.Scenes
                 m_rootReprioritizationDistance = interestConfig.GetDouble("RootReprioritizationDistance", 10.0);
                 ChildReprioritizationDistance 
                     = interestConfig.GetDouble("ChildReprioritizationDistance", ChildReprioritizationDistance);
+
+                RootPositionUpdateTolerance 
+                    = interestConfig.GetFloat("RootPositionUpdateTolerance", RootPositionUpdateTolerance);
+                RootRotationUpdateTolerance
+                    = interestConfig.GetFloat("RootRotationUpdateTolerance", RootRotationUpdateTolerance);
+                RootVelocityUpdateTolerance
+                    = interestConfig.GetFloat("RootVelocityUpdateTolerance", RootVelocityUpdateTolerance);
             }
 
             m_log.DebugFormat("[SCENE]: Using the {0} prioritization scheme", m_priorityScheme);
diff --git a/bin/OpenSimDefaults.ini b/bin/OpenSimDefaults.ini
index 3f0be2e..708a094 100644
--- a/bin/OpenSimDefaults.ini
+++ b/bin/OpenSimDefaults.ini
@@ -1729,15 +1729,23 @@
 
 
 [InterestManagement]
-     ; This section controls how state updates are prioritized for each client
-     ; Valid values are BestAvatarResponsiveness, Time, Distance,
-     ; SimpleAngularDistance, and FrontBack
-     UpdatePrioritizationScheme = BestAvatarResponsiveness
-     ReprioritizationEnabled = true
-     ReprioritizationInterval = 2000.0
-     RootReprioritizationDistance = 10.0
-     ChildReprioritizationDistance = 20.0
+    ; This section controls how state updates are prioritized for each client
+    ; Valid values are BestAvatarResponsiveness, Time, Distance,
+    ; SimpleAngularDistance, and FrontBack
+    UpdatePrioritizationScheme = BestAvatarResponsiveness
+    ReprioritizationEnabled = true
+    ReprioritizationInterval = 2000.0
+    RootReprioritizationDistance = 10.0
+    ChildReprioritizationDistance = 20.0
+    
+    ; Send an update to clients if the difference from the last sent avatar position is greater than this tolerance
+    RootPositionUpdateTolerance = 0.05
+
+    ; Send an update to clients if the euclidian difference from the last sent avatar rotation is greater than this tolerance
+    RootRotationUpdateTolerance = 0.01
 
+    ; Send an update to clients if the difference from the last sent avatar velocity is greater than this tolerance
+    RootVelocityUpdateTolerance = 0.001
 
 [Monitoring]
     ; Enable region monitoring
-- 
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