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diff --git a/OpenSim/Region/CoreModules/World/LightShare/LightShareModule.cs b/OpenSim/Region/CoreModules/World/LightShare/LightShareModule.cs
new file mode 100644
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+++ b/OpenSim/Region/CoreModules/World/LightShare/LightShareModule.cs
@@ -0,0 +1,301 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Framework.InterfaceCommander;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using log4net;
+using Nini.Config;
+using Mono.Addins;
+
+namespace OpenSim.Region.CoreModules.World.LightShare
+{
+    [Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
+    public class LightShareModule : INonSharedRegionModule, ILightShareModule, ICommandableModule
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        private readonly Commander m_commander = new Commander("windlight");
+        private Scene m_scene;
+        private static bool m_enableWindlight;
+
+        #region ICommandableModule Members
+
+        public ICommander CommandInterface
+        {
+            get { return m_commander; }
+        }
+
+        #endregion
+
+        #region INonSharedRegionModule Members
+
+        public void Initialise(IConfigSource config)
+        {
+            try
+            {
+                m_enableWindlight = config.Configs["LightShare"].GetBoolean("enable_windlight", false);
+            }
+            catch (Exception)
+            {
+                m_log.Debug("[WINDLIGHT]: ini failure for enable_windlight - using default");
+            }
+
+            m_log.DebugFormat("[WINDLIGHT]: windlight module {0}", (m_enableWindlight ? "enabled" : "disabled"));
+        }
+
+        public void AddRegion(Scene scene)
+        {
+            if (!m_enableWindlight)
+                return;
+
+            m_scene = scene;
+            m_scene.RegisterModuleInterface<ILightShareModule>(this);
+            m_scene.EventManager.OnPluginConsole += EventManager_OnPluginConsole;
+
+            m_scene.EventManager.OnMakeRootAgent += EventManager_OnMakeRootAgent;
+            m_scene.EventManager.OnSaveNewWindlightProfile += EventManager_OnSaveNewWindlightProfile;
+            m_scene.EventManager.OnSendNewWindlightProfileTargeted += EventManager_OnSendNewWindlightProfileTargeted;
+            m_scene.LoadWindlightProfile();
+
+            InstallCommands();
+        }
+
+        public void RemoveRegion(Scene scene)
+        {
+            if (!m_enableWindlight)
+                return;
+
+            m_scene.EventManager.OnPluginConsole -= EventManager_OnPluginConsole;
+
+            m_scene.EventManager.OnMakeRootAgent -= EventManager_OnMakeRootAgent;
+            m_scene.EventManager.OnSaveNewWindlightProfile -= EventManager_OnSaveNewWindlightProfile;
+            m_scene.EventManager.OnSendNewWindlightProfileTargeted -= EventManager_OnSendNewWindlightProfileTargeted;
+
+            m_scene = null;
+        }
+
+        public void Close()
+        {
+        }
+
+        public string Name
+        {
+            get { return "LightShareModule"; }
+        }
+
+        public void RegionLoaded(Scene scene)
+        {
+        }
+
+        public Type ReplaceableInterface
+        {
+            get { return null; }
+        }
+
+        #endregion
+
+        public static bool EnableWindlight
+        {
+            get
+            {
+                return m_enableWindlight;
+            }
+            set
+            {
+            }
+        }
+
+        #region events
+
+        private List<byte[]> compileWindlightSettings(RegionLightShareData wl)
+        {
+            byte[] mBlock = new Byte[249];
+            int pos = 0;
+
+            wl.waterColor.ToBytes(mBlock, 0); pos += 12;
+            Utils.FloatToBytes(wl.waterFogDensityExponent).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.underwaterFogModifier).CopyTo(mBlock, pos); pos += 4;
+            wl.reflectionWaveletScale.ToBytes(mBlock, pos); pos += 12;
+            Utils.FloatToBytes(wl.fresnelScale).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.fresnelOffset).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.refractScaleAbove).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.refractScaleBelow).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.blurMultiplier).CopyTo(mBlock, pos); pos += 4;
+            wl.bigWaveDirection.ToBytes(mBlock, pos); pos += 8;
+            wl.littleWaveDirection.ToBytes(mBlock, pos); pos += 8;
+            wl.normalMapTexture.ToBytes(mBlock, pos); pos += 16;
+            wl.horizon.ToBytes(mBlock, pos); pos += 16;
+            Utils.FloatToBytes(wl.hazeHorizon).CopyTo(mBlock, pos); pos += 4;
+            wl.blueDensity.ToBytes(mBlock, pos); pos += 16;
+            Utils.FloatToBytes(wl.hazeDensity).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.densityMultiplier).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.distanceMultiplier).CopyTo(mBlock, pos); pos += 4;
+            wl.sunMoonColor.ToBytes(mBlock, pos); pos += 16;
+            Utils.FloatToBytes(wl.sunMoonPosition).CopyTo(mBlock, pos); pos += 4;
+            wl.ambient.ToBytes(mBlock, pos); pos += 16;
+            Utils.FloatToBytes(wl.eastAngle).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.sunGlowFocus).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.sunGlowSize).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.sceneGamma).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.starBrightness).CopyTo(mBlock, pos); pos += 4;
+            wl.cloudColor.ToBytes(mBlock, pos); pos += 16;
+            wl.cloudXYDensity.ToBytes(mBlock, pos); pos += 12;
+            Utils.FloatToBytes(wl.cloudCoverage).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.cloudScale).CopyTo(mBlock, pos); pos += 4;
+            wl.cloudDetailXYDensity.ToBytes(mBlock, pos); pos += 12;
+            Utils.FloatToBytes(wl.cloudScrollX).CopyTo(mBlock, pos); pos += 4;
+            Utils.FloatToBytes(wl.cloudScrollY).CopyTo(mBlock, pos); pos += 4;
+            Utils.UInt16ToBytes(wl.maxAltitude).CopyTo(mBlock, pos); pos += 2;
+            mBlock[pos] = Convert.ToByte(wl.cloudScrollXLock); pos++;
+            mBlock[pos] = Convert.ToByte(wl.cloudScrollYLock); pos++;
+            mBlock[pos] = Convert.ToByte(wl.drawClassicClouds); pos++;
+            List<byte[]> param = new List<byte[]>();
+            param.Add(mBlock);
+            return param;
+        }
+
+        public void SendProfileToClient(IClientAPI client)
+        {
+            SendProfileToClient(client, m_scene.RegionInfo.WindlightSettings);
+        }
+
+        public void SendProfileToClient(IClientAPI client, RegionLightShareData wl)
+        {
+            if (client == null)
+                return;
+
+            if (m_enableWindlight)
+            {
+                if (m_scene.RegionInfo.WindlightSettings.valid)
+                {
+                    List<byte[]> param = compileWindlightSettings(wl);
+                    client.SendGenericMessage("Windlight", param);
+                }
+                else
+                {
+                    List<byte[]> param = new List<byte[]>();
+                    client.SendGenericMessage("WindlightReset", param);
+                }
+            }
+        }
+
+        private void EventManager_OnMakeRootAgent(ScenePresence presence)
+        {
+            if (m_enableWindlight && m_scene.RegionInfo.WindlightSettings.valid)
+                m_log.Debug("[WINDLIGHT]: Sending windlight scene to new client");
+            SendProfileToClient(presence.ControllingClient);
+        }
+
+        private void EventManager_OnSendNewWindlightProfileTargeted(RegionLightShareData wl, UUID pUUID)
+        {
+            IClientAPI client;
+            m_scene.TryGetClient(pUUID, out client);
+            SendProfileToClient(client, wl);
+        }
+
+        private void EventManager_OnSaveNewWindlightProfile()
+        {
+            m_scene.ForEachRootClient(SendProfileToClient);
+        }
+
+        #endregion
+
+        #region ICommandableModule Members
+
+        private void InstallCommands()
+        {
+            Command wlload = new Command("load", CommandIntentions.COMMAND_NON_HAZARDOUS, HandleLoad, "Load windlight profile from the database and broadcast");
+            Command wlenable = new Command("enable", CommandIntentions.COMMAND_NON_HAZARDOUS, HandleEnable, "Enable the windlight plugin");
+            Command wldisable = new Command("disable", CommandIntentions.COMMAND_NON_HAZARDOUS, HandleDisable, "Disable the windlight plugin");
+
+            m_commander.RegisterCommand("load", wlload);
+            m_commander.RegisterCommand("enable", wlenable);
+            m_commander.RegisterCommand("disable", wldisable);
+
+            m_scene.RegisterModuleCommander(m_commander);
+        }
+
+        private void HandleLoad(Object[] args)
+        {
+            if (!m_enableWindlight)
+            {
+                m_log.InfoFormat("[WINDLIGHT]: Cannot load windlight profile, module disabled. Use 'windlight enable' first.");
+            }
+            else
+            {
+                m_log.InfoFormat("[WINDLIGHT]: Loading Windlight profile from database");
+                m_scene.LoadWindlightProfile();
+                m_log.InfoFormat("[WINDLIGHT]: Load complete");
+            }
+        }
+
+        private void HandleDisable(Object[] args)
+        {
+            m_log.InfoFormat("[WINDLIGHT]: Plugin now disabled");
+            m_enableWindlight = false;
+        }
+
+        private void HandleEnable(Object[] args)
+        {
+            m_log.InfoFormat("[WINDLIGHT]: Plugin now enabled");
+            m_enableWindlight = true;
+        }
+
+        /// <summary>
+        /// Processes commandline input. Do not call directly.
+        /// </summary>
+        /// <param name="args">Commandline arguments</param>
+        private void EventManager_OnPluginConsole(string[] args)
+        {
+            if (args[0] == "windlight")
+            {
+                if (args.Length == 1)
+                {
+                    m_commander.ProcessConsoleCommand("add", new string[0]);
+                    return;
+                }
+
+                string[] tmpArgs = new string[args.Length - 2];
+                int i;
+                for (i = 2; i < args.Length; i++)
+                {
+                    tmpArgs[i - 2] = args[i];
+                }
+
+                m_commander.ProcessConsoleCommand(args[1], tmpArgs);
+            }
+        }
+        #endregion
+
+    }
+}
+