diff --git a/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs b/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs
index 3f40170d2a..5465035c58 100644
--- a/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs
+++ b/OpenSim/Region/PhysicsModules/ubOde/ODEMeshWorker.cs
@@ -62,6 +62,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
         public byte shapetype;
         public bool hasOBB;
         public bool hasMeshVolume;
+        public bool isTooSmall;
         public MeshState meshState;
         public UUID? assetID;
         public meshWorkerCmnds comand;
@@ -69,16 +70,14 @@ namespace OpenSim.Region.PhysicsModule.ubOde
 
     public class ODEMeshWorker
     {
-
         private ILog m_log;
         private ODEScene m_scene;
         private IMesher m_mesher;
 
         public bool meshSculptedPrim = true;
-        public bool forceSimplePrimMeshing = false;
         public float meshSculptLOD = 32;
         public float MeshSculptphysicalLOD = 32;
-
+        public float MinSizeToMeshmerize = 0.1f;
 
         private OpenSim.Framework.BlockingQueue<ODEPhysRepData> workQueue = new OpenSim.Framework.BlockingQueue<ODEPhysRepData>();
         private bool m_running;
@@ -93,9 +92,9 @@ namespace OpenSim.Region.PhysicsModule.ubOde
 
             if (pConfig != null)
             {
-                forceSimplePrimMeshing = pConfig.GetBoolean("force_simple_prim_meshing", forceSimplePrimMeshing);
                 meshSculptedPrim = pConfig.GetBoolean("mesh_sculpted_prim", meshSculptedPrim);
                 meshSculptLOD = pConfig.GetFloat("mesh_lod", meshSculptLOD);
+                MinSizeToMeshmerize =  pConfig.GetFloat("mesh_min_size", MinSizeToMeshmerize);
                 MeshSculptphysicalLOD = pConfig.GetFloat("mesh_physical_lod", MeshSculptphysicalLOD);
             }
             m_running = true;
@@ -288,6 +287,16 @@ namespace OpenSim.Region.PhysicsModule.ubOde
         {
             PrimitiveBaseShape pbs = repData.pbs;
             // check sculpts or meshs
+
+            Vector3 scale = pbs.Scale;
+            if(scale.X <= MinSizeToMeshmerize &&
+               scale.Y <= MinSizeToMeshmerize &&
+               scale.Z <= MinSizeToMeshmerize)
+            {
+                repData.isTooSmall = true;
+                return false;
+            }
+
             if (pbs.SculptEntry)
             {
                 if (meshSculptedPrim)
@@ -299,9 +308,6 @@ namespace OpenSim.Region.PhysicsModule.ubOde
                 return false;
             }
 
-            if (forceSimplePrimMeshing)
-                return true;
-
             // convex shapes have no holes
             ushort profilehollow = pbs.ProfileHollow;
             if(repData.shapetype == 2)
@@ -554,10 +560,16 @@ namespace OpenSim.Region.PhysicsModule.ubOde
 
         private void CalculateBasicPrimVolume(ODEPhysRepData repData)
         {
-            PrimitiveBaseShape _pbs = repData.pbs;
             Vector3 _size = repData.size;
 
             float volume = _size.X * _size.Y * _size.Z; // default
+            if(repData.isTooSmall)
+            {
+                repData.volume = volume;
+                return;
+            }
+
+            PrimitiveBaseShape _pbs = repData.pbs;
             float tmp;
 
             float hollowAmount = (float)_pbs.ProfileHollow * 2.0e-5f;
diff --git a/OpenSim/Region/PhysicsModules/ubOde/ODEPrim.cs b/OpenSim/Region/PhysicsModules/ubOde/ODEPrim.cs
index 76ef88b440..b191dbc9e8 100644
--- a/OpenSim/Region/PhysicsModules/ubOde/ODEPrim.cs
+++ b/OpenSim/Region/PhysicsModules/ubOde/ODEPrim.cs
@@ -1733,7 +1733,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
             return true;
         }
 
-        private void CreateGeom()
+        private void CreateGeom(bool OverrideToBox)
         {
             bool hasMesh = false;
 
@@ -1742,7 +1742,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
             if ((m_meshState & MeshState.MeshNoColide) != 0)
                 m_NoColide = true;
 
-            else if(m_mesh != null)
+            else if(!OverrideToBox && m_mesh != null)
             {
                 if (GetMeshGeom())
                     hasMesh = true;
@@ -1755,7 +1755,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
             {
                 IntPtr geo = IntPtr.Zero;
 
-                if (_pbs.ProfileShape == ProfileShape.HalfCircle && _pbs.PathCurve == (byte)Extrusion.Curve1
+                if (!OverrideToBox && _pbs.ProfileShape == ProfileShape.HalfCircle && _pbs.PathCurve == (byte)Extrusion.Curve1
                     && _size.X == _size.Y && _size.Y == _size.Z)
                 { // it's a sphere
                     try
@@ -3180,7 +3180,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
 
             primVolume = repData.volume;
 
-            CreateGeom();
+            CreateGeom(repData.isTooSmall);
 
             if (prim_geom != IntPtr.Zero)
             {
@@ -3256,7 +3256,7 @@ namespace OpenSim.Region.PhysicsModule.ubOde
 
             primVolume = repData.volume;
 
-            CreateGeom();
+            CreateGeom(repData.isTooSmall);
 
             if (prim_geom != IntPtr.Zero)
             {