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diff --git a/OpenSim/Tests/Stress/VectorRenderModuleStressTests.cs b/OpenSim/Tests/Stress/VectorRenderModuleStressTests.cs
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+++ b/OpenSim/Tests/Stress/VectorRenderModuleStressTests.cs
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+/*
+ * 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.IO;
+using System.Linq;
+using System.Reflection;
+using System.Threading;
+using log4net.Config;
+using NUnit.Framework;
+using OpenMetaverse;
+using OpenMetaverse.Assets;
+using OpenSim.Framework;
+using OpenSim.Region.CoreModules.Scripting.DynamicTexture;
+using OpenSim.Region.CoreModules.Scripting.VectorRender;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.Framework.Scenes.Serialization;
+using OpenSim.Tests.Common;
+using OpenSim.Tests.Common.Mock;
+
+namespace OpenSim.Tests.Stress
+{
+    [TestFixture]
+    public class VectorRenderModuleStressTests : OpenSimTestCase
+    {
+        public Scene Scene { get; private set; }
+        public DynamicTextureModule Dtm { get; private set; }
+        public VectorRenderModule Vrm { get; private set; }
+
+        private void SetupScene(bool reuseTextures)
+        {
+            Scene = new SceneHelpers().SetupScene();
+
+            Dtm = new DynamicTextureModule();
+            Dtm.ReuseTextures = reuseTextures;
+
+            Vrm = new VectorRenderModule();
+
+            SceneHelpers.SetupSceneModules(Scene, Dtm, Vrm);
+        }
+
+        [Test]
+        public void TestConcurrentRepeatedDraw()
+        {
+            int threads = 4;
+            TestHelpers.InMethod();
+
+            SetupScene(false);
+
+            List<Drawer> drawers = new List<Drawer>();
+
+            for (int i = 0; i < threads; i++)
+            {
+                Drawer d = new Drawer(this, i);
+                drawers.Add(d);
+                Console.WriteLine("Starting drawer {0}", i);
+                Util.FireAndForget(o => d.Draw());
+            }
+
+            Thread.Sleep(10 * 60 * 1000);
+
+            drawers.ForEach(d => d.Ready = false);
+            drawers.ForEach(d => Console.WriteLine("Drawer {0} drew {1} textures", d.Number, d.Pass + 1));
+        }
+
+        class Drawer
+        {
+            public int Number { get; private set; }
+            public int Pass { get; private set; }
+            public bool Ready { get; set; }
+
+            private VectorRenderModuleStressTests m_tests;
+
+            public Drawer(VectorRenderModuleStressTests tests, int number)
+            {
+                m_tests = tests;
+                Number = number;
+                Ready = true;
+            }
+
+            public void Draw()
+            {
+                SceneObjectGroup so = SceneHelpers.AddSceneObject(m_tests.Scene);
+                
+                while (Ready)
+                {
+                    UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+                    // Ensure unique text
+                    string text = string.Format("{0:D2}{1}", Number, Pass);
+
+                    m_tests.Dtm.AddDynamicTextureData(
+                        m_tests.Scene.RegionInfo.RegionID,
+                        so.UUID,
+                        m_tests.Vrm.GetContentType(),
+                        string.Format("PenColour BLACK; MoveTo 40,220; FontSize 32; Text {0};", text),
+                        "",
+                        0);
+    
+                    Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+
+                    Pass++;
+                }
+            }
+        }
+    }
+}
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