add option RegionViewDistance

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -275,6 +275,12 @@ namespace OpenSim.Region.Framework.Scenes
             get { return m_maxRegionViewDistance; }
         }
 
+        protected float m_minRegionViewDistance = 96f;
+        public float MinRegionViewDistance
+        {
+            get { return m_minRegionViewDistance; }
+        }
+
         private List<string> m_AllowedViewers = new List<string>();
         private List<string> m_BannedViewers = new List<string>();
 
@@ -920,6 +926,7 @@ namespace OpenSim.Region.Framework.Scenes
                 m_defaultDrawDistance = startupConfig.GetFloat("DefaultDrawDistance", m_defaultDrawDistance);
                 m_maxDrawDistance = startupConfig.GetFloat("MaxDrawDistance", m_maxDrawDistance);
                 m_maxRegionViewDistance = startupConfig.GetFloat("MaxRegionsViewDistance", m_maxRegionViewDistance);
+                m_minRegionViewDistance = startupConfig.GetFloat("MinRegionsViewDistance", m_maxRegionViewDistance);
 
                 // old versions compatibility
                 LegacySitOffsets = startupConfig.GetBoolean("LegacySitOffsets", LegacySitOffsets);
@@ -930,6 +937,11 @@ namespace OpenSim.Region.Framework.Scenes
                 if (m_maxRegionViewDistance > m_maxDrawDistance)
                     m_maxRegionViewDistance = m_maxDrawDistance;
 
+                if(m_minRegionViewDistance < 96f)
+                    m_minRegionViewDistance = 96f;
+                if(m_minRegionViewDistance > m_maxRegionViewDistance)
+                    m_minRegionViewDistance = m_maxRegionViewDistance;
+
                 UseBackup = startupConfig.GetBoolean("UseSceneBackup", UseBackup);
                 if (!UseBackup)
                     m_log.InfoFormat("[SCENE]: Backup has been disabled for {0}", RegionInfo.RegionName);

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -629,7 +629,7 @@ namespace OpenSim.Region.Framework.Scenes
         {
             get
             {
-                return Util.Clamp(m_drawDistance + 64f, 64f, m_scene.MaxRegionViewDistance);
+                return Util.Clamp(m_drawDistance + 64f, m_scene.MinRegionViewDistance, m_scene.MaxRegionViewDistance);
             }
          }
 

bin/OpenSimDefaults.ini

@@ -164,15 +164,10 @@
 	; limit the maximum view range ( no effect still (does limit MaxRegionsViewDistance) )
 	;MaxDrawDistance = 512
 
-	; the maximum distance to tell a viewer to connect to a neighbour region, so it can be seen
+	; Other regions visibilty depends on avatar position and view range
-	; (it is limited by MaxDrawDistance above)
+	; the view range considered is limited the maximum and minimum distances:
-	; less than 256 shows immediate neighbours; 256 to 511 also second imediate neighbours etc
-	; more than 511m can cause viewers problems specially in case of dense regions.
-	; curretly this distance is from current region borders.
-	; Warning: if relevant regions have different setting you may notice strange
-    ; effects due to that asymmetry
-    ; *****
 	;MaxRegionsViewDistance = 255
+	;MinRegionsViewDistance = 96
 
     ; If you have only one region in an instance, or to avoid the many bugs
     ; that you can trigger in modules by restarting a region, set this to