* Applied Gerhard's Meshing patch (Thanks! Gerhard)

* Addition of Gerhard's ZeroMesher.
* Addition of meshing OpenSim.ini parameter
* Some modifications to the Meshmerizer
* Meshmerizer set to default meshing plugin because ZeroMesher needs a memory locking fix.  We'll switch it back after the memory locking issue is resolved.

OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs

@@ -88,6 +88,15 @@ namespace OpenSim.Region.Physics.Manager
 
         public void LoadPlugins()
         {
+
+            // Load "plugins", that are hard coded and not existing in form of an external lib
+            IMeshingPlugin plugHard;
+            plugHard = new ZeroMesherPlugin();
+            _MeshPlugins.Add(plugHard.GetName(), plugHard);
+            MainLog.Instance.Verbose("PHYSICS", "Added meshing engine: " + plugHard.GetName());
+            
+            // And now walk all assemblies (DLLs effectively) and see if they are home 
+            // of a plugin that is of interest for us
             string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Physics");
             string[] pluginFiles = Directory.GetFiles(path, "*.dll");
 
@@ -100,6 +109,7 @@ namespace OpenSim.Region.Physics.Manager
 
         private void AddPlugin(string FileName)
         {
+
             Assembly pluginAssembly = Assembly.LoadFrom(FileName);
 
             foreach (Type pluginType in pluginAssembly.GetTypes())

OpenSim/Region/Physics/Manager/ZeroMesher.cs

@@ -0,0 +1,74 @@
+/*
+* 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 OpenSim 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.Text;
+using OpenSim.Framework;
+
+
+/*
+ * This is the zero mesher.
+ * Whatever you want him to mesh, he can't, telling you that by responding with a null pointer.
+ * Effectivly this is for switching off meshing and for testing as each physics machine should deal 
+ * with the null pointer situation.
+ * But it's also a convenience thing, as physics machines can rely on having a mesher in any situation, even 
+ * if it's a dump one like this.
+ * Note, that this mesher is *not* living in a module but in the manager itself, so
+ * it's always availabe and thus the default in case of configuration errors
+*/
+
+namespace OpenSim.Region.Physics.Manager
+{
+    public class ZeroMesherPlugin : IMeshingPlugin
+    {
+        public ZeroMesherPlugin()
+        {
+        }
+
+        public string GetName()
+        {
+            return "ZeroMesher";
+        }
+
+        public IMesher GetMesher()
+        {
+            return new ZeroMesher();
+        }
+    }
+
+    public class ZeroMesher: IMesher
+    {
+
+        public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, PhysicsVector size)
+        {
+            return null;
+        }
+    }
+
+}

bin/OpenSim.ini.example

@@ -1,5 +1,15 @@
 [Startup]
 gridmode = false
+
+; Select a mesher here. ZeroMesher is save and fast.
+; ZeroMesher also means that the physics engine models the physics of prims
+; sticking to the basic shapes the engine does support. Usually this is only a box.
+; Meshmerizer gives a better handling of complex prims by using triangle meshes.
+; Note, that only ODE physics currently deals with meshed prims in a satisfactoring way
+; ZeroMesher currently has a memory locking issue.
+; meshing = ZeroMesher
+meshing = Meshmerizer
+
 physics = basicphysics
 ; Prim Storage
 ; if you would like to use sqlite uncomment the following line (and 

bin/mysql_connection.ini

@@ -1,7 +1,7 @@
 [mysqlconnection]
 hostname=localhost
-database=database
-username=username
-password=password
+database=opensim
+username=openSim
+password=f1r3st0rm
 pooling=false
 port=3306