From 9b6e747d789bfc1ba0a193f7b5f8a02f19bf6654 Mon Sep 17 00:00:00 2001
From: Teravus Ovares
Date: Mon, 12 Nov 2007 16:22:23 +0000
Subject: * Sets ZeroMesher as default.  (If you want to cut and hollow, you'll
 need to uncomment the Meshmerizer in OpenSim.ini) * Fixes a geometry issue in
 ODE when using ZeroMesher

---
 OpenSim/Region/Application/OpenSimMain.cs     |  2 +-
 OpenSim/Region/Physics/OdePlugin/OdePlugin.cs | 23 ++++++++++++++++++++---
 bin/OpenSim.ini.example                       | 12 +++++++++---
 3 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/OpenSim/Region/Application/OpenSimMain.cs b/OpenSim/Region/Application/OpenSimMain.cs
index e3c326b..7efe408 100644
--- a/OpenSim/Region/Application/OpenSimMain.cs
+++ b/OpenSim/Region/Application/OpenSimMain.cs
@@ -213,7 +213,7 @@ namespace OpenSim
             {
                 m_sandbox = !startupConfig.GetBoolean("gridmode", false);
                 m_physicsEngine = startupConfig.GetString("physics", "basicphysics");
-                m_meshEngineName = startupConfig.GetString("meshing", "Meshmerizer");
+                m_meshEngineName = startupConfig.GetString("meshing", "ZeroMesher");
                 m_verbose = startupConfig.GetBoolean("verbose", true);
                 m_physicalPrim = startupConfig.GetBoolean("physical_prim", true);
                 m_permissions = startupConfig.GetBoolean("serverside_object_permissions", false);
diff --git a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
index 646ccb5..2ba8827 100644
--- a/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
+++ b/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
@@ -308,7 +308,11 @@ namespace OpenSim.Region.Physics.OdePlugin
                         p = (OdePrim) prim;
                         p.disableBody();
                     }
-                    d.GeomDestroy(((OdePrim)prim).prim_geom);
+                    if (((OdePrim)prim).prim_geom != null)
+                    {
+                        if (((OdePrim)prim).prim_geom != (IntPtr) 0)
+                            d.GeomDestroy(((OdePrim)prim).prim_geom);
+                    }
                     _prims.Remove((OdePrim)prim);
                     
                 }
@@ -1181,7 +1185,13 @@ namespace OpenSim.Region.Physics.OdePlugin
                         IMesh mesh = _parent_scene.mesher.CreateMesh(oldname, _pbs, _size);
                         // createmesh returns null when it's a shape that isn't a cube.
                         if (mesh != null)
-                        setMesh(_parent_scene, mesh);
+                        {
+                            setMesh(_parent_scene, mesh);
+                        }
+                        else
+                        {
+                            prim_geom = d.CreateBox(_parent_scene.space, _size.X, _size.Y, _size.Z);
+                        }
                     } else {
                         prim_geom = d.CreateBox(_parent_scene.space, _size.X, _size.Y, _size.Z);
                         
@@ -1228,7 +1238,14 @@ namespace OpenSim.Region.Physics.OdePlugin
                     if (this._parent_scene.needsMeshing(_pbs))
                     {
                         IMesh mesh = _parent_scene.mesher.CreateMesh(oldname, _pbs, _size);
-                        setMesh(_parent_scene, mesh);
+                        if (mesh != null)
+                        {
+                            setMesh(_parent_scene, mesh);
+                        }
+                        else
+                        {
+                            prim_geom = d.CreateBox(_parent_scene.space, _size.X, _size.Y, _size.Z);
+                        }
                     } else {
                         prim_geom = d.CreateBox(_parent_scene.space, _size.X, _size.Y, _size.Z);
                     }
diff --git a/bin/OpenSim.ini.example b/bin/OpenSim.ini.example
index 1a61425..43af529 100644
--- a/bin/OpenSim.ini.example
+++ b/bin/OpenSim.ini.example
@@ -6,11 +6,15 @@ gridmode = false
 ; 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
+; 
+meshing = ZeroMesher
+;meshing = Meshmerizer
 
+; Choose one of the physics engines below
 physics = basicphysics
+;physics = OpenDynamicsEngine
+;physics = modified_BulletX
+
 ; Prim Storage
 ; if you would like to use sqlite uncomment the following line (and 
 ; comment the NullStorage line)
@@ -24,6 +28,8 @@ serverside_object_permissions = false
 ; to try sqlite as the asset database , comment out the above line, and uncomment following one
 asset_database = "sqlite"
 verbose = true
+
+; if you would like to allow prim to be physical and move by physics with the physical checkbox in the client set this to true.
 physical_prim = true
 
 [StandAlone]
-- 
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