diff --git a/RenderSystems/ANX.Framework.Windows.DX10/GraphicsDeviceWindowsDX10.cs b/RenderSystems/ANX.Framework.Windows.DX10/GraphicsDeviceWindowsDX10.cs
index 9bb4f0ce..cd3942cc 100644
--- a/RenderSystems/ANX.Framework.Windows.DX10/GraphicsDeviceWindowsDX10.cs
+++ b/RenderSystems/ANX.Framework.Windows.DX10/GraphicsDeviceWindowsDX10.cs
@@ -334,7 +334,15 @@ namespace ANX.Framework.Windows.DX10
         #region DrawUserPrimitives<T>
         public void DrawUserPrimitives<T>(PrimitiveType primitiveType, T[] vertexData, int vertexOffset, int primitiveCount, VertexDeclaration vertexDeclaration) where T : struct, IVertexType
         {
-            throw new NotImplementedException();
+            int vertexCount = vertexData.Length;
+            VertexBuffer_DX10 vb10 = new VertexBuffer_DX10(this.device, vertexDeclaration, vertexCount, BufferUsage.None);
+            vb10.SetData<T>(null, vertexData);
+
+            SharpDX.Direct3D10.VertexBufferBinding nativeVertexBufferBindings = new SharpDX.Direct3D10.VertexBufferBinding(vb10.NativeBuffer, vertexDeclaration.VertexStride, 0);
+
+            device.InputAssembler.SetVertexBuffers(0, nativeVertexBufferBindings);
+
+            DrawPrimitives(primitiveType, vertexOffset, primitiveCount);
         }
 
         #endregion // DrawUserPrimitives<T>
diff --git a/RenderSystems/ANX.Framework.Windows.DX10/VertexBuffer_DX10.cs b/RenderSystems/ANX.Framework.Windows.DX10/VertexBuffer_DX10.cs
index 630df546..f53c6025 100644
--- a/RenderSystems/ANX.Framework.Windows.DX10/VertexBuffer_DX10.cs
+++ b/RenderSystems/ANX.Framework.Windows.DX10/VertexBuffer_DX10.cs
@@ -65,13 +65,23 @@ namespace ANX.Framework.Windows.DX10
         int vertexStride;
 
         public VertexBuffer_DX10(GraphicsDevice graphics, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage usage)
+        {
+            GraphicsDeviceWindowsDX10 gd10 = graphics.NativeDevice as GraphicsDeviceWindowsDX10;
+            SharpDX.Direct3D10.Device device = gd10 != null ? gd10.NativeDevice as SharpDX.Direct3D10.Device : null;
+
+            InitializeBuffer(device, vertexDeclaration, vertexCount, usage);
+        }
+
+        internal VertexBuffer_DX10(SharpDX.Direct3D10.Device device, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage usage)
+        {
+            InitializeBuffer(device, vertexDeclaration, vertexCount, usage);
+        }
+
+        private void InitializeBuffer(SharpDX.Direct3D10.Device device, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage usage)
         {
             this.vertexStride = vertexDeclaration.VertexStride;
 
             //TODO: translate and use usage
-            
-            GraphicsDeviceWindowsDX10 gd10 = graphics.NativeDevice as GraphicsDeviceWindowsDX10;
-            SharpDX.Direct3D10.Device device = gd10 != null ? gd10.NativeDevice as SharpDX.Direct3D10.Device : null;
 
             if (device != null)
             {
diff --git a/RenderSystems/ANX.RenderSystem.Windows.DX11/GraphicsDeviceWindowsDX11.cs b/RenderSystems/ANX.RenderSystem.Windows.DX11/GraphicsDeviceWindowsDX11.cs
index a2acf150..b0a4a3cd 100644
--- a/RenderSystems/ANX.RenderSystem.Windows.DX11/GraphicsDeviceWindowsDX11.cs
+++ b/RenderSystems/ANX.RenderSystem.Windows.DX11/GraphicsDeviceWindowsDX11.cs
@@ -338,7 +338,15 @@ namespace ANX.RenderSystem.Windows.DX11
         #region DrawUserPrimitives<T>
         public void DrawUserPrimitives<T>(PrimitiveType primitiveType, T[] vertexData, int vertexOffset, int primitiveCount, VertexDeclaration vertexDeclaration) where T : struct, IVertexType
         {
-            throw new NotImplementedException();
+            int vertexCount = vertexData.Length;
+            VertexBuffer_DX11 vb11 = new VertexBuffer_DX11(this.deviceContext.Device, vertexDeclaration, vertexCount, BufferUsage.None);
+            vb11.SetData<T>(null, vertexData);
+
+            SharpDX.Direct3D11.VertexBufferBinding nativeVertexBufferBindings = new SharpDX.Direct3D11.VertexBufferBinding(vb11.NativeBuffer, vertexDeclaration.VertexStride, 0);
+
+            deviceContext.InputAssembler.SetVertexBuffers(0, nativeVertexBufferBindings);
+
+            DrawPrimitives(primitiveType, vertexOffset, primitiveCount);
         }
 
         #endregion // DrawUserPrimitives<T>
diff --git a/RenderSystems/ANX.RenderSystem.Windows.DX11/VertexBuffer_DX11.cs b/RenderSystems/ANX.RenderSystem.Windows.DX11/VertexBuffer_DX11.cs
index 2229a8ba..25ebb758 100644
--- a/RenderSystems/ANX.RenderSystem.Windows.DX11/VertexBuffer_DX11.cs
+++ b/RenderSystems/ANX.RenderSystem.Windows.DX11/VertexBuffer_DX11.cs
@@ -65,15 +65,25 @@ namespace ANX.RenderSystem.Windows.DX11
         int vertexStride;
 
         public VertexBuffer_DX11(GraphicsDevice graphics, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage usage)
+        {
+            GraphicsDeviceWindowsDX11 gd11 = graphics.NativeDevice as GraphicsDeviceWindowsDX11;
+            SharpDX.Direct3D11.DeviceContext context = gd11 != null ? gd11.NativeDevice as SharpDX.Direct3D11.DeviceContext : null;
+
+            InitializeBuffer(context.Device, vertexDeclaration, vertexCount, usage);
+        }
+
+        internal VertexBuffer_DX11(SharpDX.Direct3D11.Device device, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage usage)
+        {
+            InitializeBuffer(device, vertexDeclaration, vertexCount, usage);
+        }
+
+        private void InitializeBuffer(SharpDX.Direct3D11.Device device, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage usage)
         {
             this.vertexStride = vertexDeclaration.VertexStride;
 
             //TODO: translate and use usage
 
-            GraphicsDeviceWindowsDX11 gd11 = graphics.NativeDevice as GraphicsDeviceWindowsDX11;
-            SharpDX.Direct3D11.DeviceContext context = gd11 != null ? gd11.NativeDevice as SharpDX.Direct3D11.DeviceContext : null;
-
-            if (context != null)
+            if (device != null)
             {
                 BufferDescription description = new BufferDescription()
                 {
@@ -84,8 +94,7 @@ namespace ANX.RenderSystem.Windows.DX11
                     OptionFlags = ResourceOptionFlags.None
                 };
 
-                this.buffer = new SharpDX.Direct3D11.Buffer(context.Device, description);
-                //this.buffer.Unmap();
+                this.buffer = new SharpDX.Direct3D11.Buffer(device, description);
             }
         }