C# RenderTargetView.Dispose方法代碼示例

//.........這裏部分代碼省略.........
                if (device == null)
                    throw new NotSupportedException("SharpDX.Direct3D11.Device1 is not supported");
            }

            // Rather than create a new DXGI Factory we should reuse
            // the one that has been used internally to create the device
            using (var dxgi = device.QueryInterface<SharpDX.DXGI.Device2>())
            using (var adapter = dxgi.Adapter)
            using (var factory = adapter.GetParent<Factory2>())
            {
                var desc1 = new SwapChainDescription1()
                {
                    Width = form.ClientSize.Width,
                    Height = form.ClientSize.Height,
                    Format = Format.R8G8B8A8_UNorm,
                    Stereo = false,
                    SampleDescription = new SampleDescription(1, 0),
                    Usage = Usage.BackBuffer | Usage.RenderTargetOutput,
                    BufferCount = 1,
                    Scaling = Scaling.Stretch,
                    SwapEffect = SwapEffect.Discard,
                };

                swapChain = new SwapChain1(factory,
                    device,
                    form.Handle,
                    ref desc1,
                    new SwapChainFullScreenDescription()
                    {
                        RefreshRate = new Rational(60, 1),
                        Scaling = DisplayModeScaling.Centered,
                        Windowed = true
                    },
                    // Restrict output to specific Output (monitor)
                    null);
            }

            // Create references to backBuffer and renderTargetView
            var backBuffer = Texture2D.FromSwapChain<Texture2D>(swapChain, 0);
            var renderTargetView = new RenderTargetView(device, backBuffer);

            #endregion

            #region Render loop

            // Create Clock and FPS counters
            var clock = new System.Diagnostics.Stopwatch();
            var clockFrequency = (double)System.Diagnostics.Stopwatch.Frequency;
            clock.Start();
            var deltaTime = 0.0;
            var fpsTimer = new System.Diagnostics.Stopwatch();
            fpsTimer.Start();
            var fps = 0.0;
            int fpsFrames = 0;

            // Create and run the render loop
            RenderLoop.Run(form, () =>
            {
                // Time in seconds
                var totalSeconds = clock.ElapsedTicks / clockFrequency;

                #region FPS and title update
                fpsFrames++;
                if (fpsTimer.ElapsedMilliseconds > 1000)
                {
                    fps = 1000.0 * fpsFrames / fpsTimer.ElapsedMilliseconds;

                    // Update window title with FPS once every second
                    form.Text = string.Format("D3DRendering D3D11.1 - FPS: {0:F2} ({1:F2}ms/frame)", fps, (float)fpsTimer.ElapsedMilliseconds / fpsFrames);

                    // Restart the FPS counter
                    fpsTimer.Reset();
                    fpsTimer.Start();
                    fpsFrames = 0;
                }
                #endregion

                // Execute rendering commands here...
                device.ImmediateContext.ClearRenderTargetView(
                    renderTargetView,
                    Color.LightBlue);

                // Present the frame
                swapChain.Present(0, PresentFlags.None, new PresentParameters());

                // Determine the time it took to render the frame
                deltaTime = (clock.ElapsedTicks / clockFrequency) - totalSeconds;
            });
            #endregion

            #region Direct3D Cleanup

            // Release the device and any other resources created
            renderTargetView.Dispose();
            backBuffer.Dispose();
            device.Dispose();
            swapChain.Dispose();

            #endregion
        }

//.........這裏部分代碼省略.........
                            });

            // Create Constant Buffer
            var contantBuffer = new Buffer(device, Utilities.SizeOf<Matrix>(), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);


            // Create Depth Buffer & View
            var depthBuffer = new Texture2D(device, new Texture2DDescription()
            {
                Format = Format.D32_Float_S8X24_UInt,
                ArraySize = 1,
                MipLevels = 1,
                Width = form.ClientSize.Width,
                Height = form.ClientSize.Height,
                SampleDescription = new SampleDescription(1, 0),
                Usage = ResourceUsage.Default,
                BindFlags = BindFlags.DepthStencil,
                CpuAccessFlags = CpuAccessFlags.None,
                OptionFlags = ResourceOptionFlags.None
            });

            var depthView = new DepthStencilView(device, depthBuffer);

            // Load texture and create sampler
            var texture = Texture2D.FromFile<Texture2D>(device, "GeneticaMortarlessBlocks.jpg");
            var textureView = new ShaderResourceView(device, texture);

            var sampler = new SamplerState(device, new SamplerStateDescription()
            {
                Filter = Filter.MinMagMipLinear,
                AddressU = TextureAddressMode.Wrap,
                AddressV = TextureAddressMode.Wrap,
                AddressW = TextureAddressMode.Wrap,
                BorderColor = Color.Black,
                ComparisonFunction = Comparison.Never,
                MaximumAnisotropy = 16,
                MipLodBias = 0,
                MinimumLod = 0,
                MaximumLod = 16,
            });


            // Prepare All the stages
            context.InputAssembler.InputLayout = layout;
            context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
            context.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(vertices, Utilities.SizeOf<Vector4>() + Utilities.SizeOf<Vector2>(), 0));
            context.VertexShader.SetConstantBuffer(0, contantBuffer);
            context.VertexShader.Set(vertexShader);
            context.Rasterizer.SetViewports(new Viewport(0, 0, form.ClientSize.Width, form.ClientSize.Height, 0.0f, 1.0f));
            context.PixelShader.Set(pixelShader);
            context.PixelShader.SetSampler(0, sampler);
            context.PixelShader.SetShaderResource(0, textureView);
            context.OutputMerger.SetTargets(depthView, renderView);

            // Prepare matrices
            var view = Matrix.LookAtLH(new Vector3(0, 0, -5), new Vector3(0, 0, 0), Vector3.UnitY);
            var proj = Matrix.PerspectiveFovLH((float)Math.PI / 4.0f, form.ClientSize.Width / (float)form.ClientSize.Height, 0.1f, 100.0f);
            var viewProj = Matrix.Multiply(view, proj);

            // Use clock
            var clock = new Stopwatch();
            clock.Start();

            // Main loop
            RenderLoop.Run(form, () =>
            {
                var time = clock.ElapsedMilliseconds / 1000.0f;

                // Clear views
                context.ClearDepthStencilView(depthView, DepthStencilClearFlags.Depth, 1.0f, 0);
                context.ClearRenderTargetView(renderView, Color.Black);

                // Update WorldViewProj Matrix
                var worldViewProj = Matrix.RotationX(time) * Matrix.RotationY(time * 2) * Matrix.RotationZ(time * .7f) * viewProj;
                worldViewProj.Transpose();
                context.UpdateSubresource(ref worldViewProj, contantBuffer);

                // Draw the cube
                context.Draw(36, 0);

                // Present!
                swapChain.Present(0, PresentFlags.None);
            });

            // Release all resources
            vertexShaderByteCode.Dispose();
            vertexShader.Dispose();
            pixelShaderByteCode.Dispose();
            pixelShader.Dispose();
            vertices.Dispose();
            layout.Dispose();
            renderView.Dispose();
            backBuffer.Dispose();
            context.ClearState();
            context.Flush();
            device.Dispose();
            context.Dispose();
            swapChain.Dispose();
            factory.Dispose();
        }

        private static void Main()
        {
            var form = new RenderForm("SharpDX - MiniTri Direct3D 11 Sample using Effects11 system");

            Configuration.EnableObjectTracking = true;

            // SwapChain description
            var desc = new SwapChainDescription()
            {
                BufferCount = 1,
                ModeDescription =
                    new ModeDescription(form.ClientSize.Width, form.ClientSize.Height,
                                        new Rational(60, 1), Format.R8G8B8A8_UNorm),
                IsWindowed = true,
                OutputHandle = form.Handle,
                SampleDescription = new SampleDescription(1, 0),
                SwapEffect = SwapEffect.Discard,
                Usage = Usage.RenderTargetOutput
            };

            // Create Device and SwapChain
            Device device;
            SwapChain swapChain;
            Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.None, desc, out device, out swapChain);
            var context = device.ImmediateContext;

            // Ignore all windows events
            var factory = swapChain.GetParent<Factory>();
            factory.MakeWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAll);

            // New RenderTargetView from the backbuffer
            var backBuffer = Texture2D.FromSwapChain<Texture2D>(swapChain, 0);
            var renderView = new RenderTargetView(device, backBuffer);

            // Compile Vertex and Pixel shaders
            var effectByteCode = ShaderBytecode.CompileFromFile("MiniTri.fx", "fx_5_0", ShaderFlags.None, EffectFlags.None);
            var effect = new Effect(device, effectByteCode);
            var technique = effect.GetTechniqueByIndex(0);
            var pass = technique.GetPassByIndex(0);

            // Layout from VertexShader input signature
            var passSignature = pass.Description.Signature;
            var layout = new InputLayout(device, passSignature, new[]
                                                                                 {
                                                                                     new InputElement("POSITION", 0, Format.R32G32B32A32_Float, 0, 0),
                                                                                     new InputElement("COLOR", 0, Format.R32G32B32A32_Float, 16, 0)
                                                                                 });
            // Instantiate Vertex buffer from vertex data
            var vertices = Buffer.Create(device, BindFlags.VertexBuffer, new[]
                                  {
                                      new Vector4(0.0f, 0.5f, 0.5f, 1.0f), new Vector4(1.0f, 0.0f, 0.0f, 1.0f),
                                      new Vector4(0.5f, -0.5f, 0.5f, 1.0f), new Vector4(0.0f, 1.0f, 0.0f, 1.0f),
                                      new Vector4(-0.5f, -0.5f, 0.5f, 1.0f), new Vector4(0.0f, 0.0f, 1.0f, 1.0f)
                                  });

            // Prepare All the stages
            context.InputAssembler.InputLayout = layout;
            context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
            context.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(vertices, 32, 0));
            context.Rasterizer.SetViewport(new Viewport(0, 0, form.ClientSize.Width, form.ClientSize.Height, 0.0f, 1.0f));
            context.OutputMerger.SetTargets(renderView);

            // Main loop
            RenderLoop.Run(form, () =>
            {
                context.ClearRenderTargetView(renderView, Color.Black);
                for (int i = 0; i < technique.Description.PassCount; ++i)
                {
                    pass.Apply(context);
                    context.Draw(3, 0);
                }
                swapChain.Present(0, PresentFlags.None);
            });

            // Release all resources
            passSignature.Dispose();
            effect.Dispose();
            effectByteCode.Dispose();
            vertices.Dispose();
            layout.Dispose();
            renderView.Dispose();
            backBuffer.Dispose();
            device.Dispose();
            swapChain.Dispose();
            factory.Dispose();
        }

//.........這裏部分代碼省略.........
            String directory = null;
            if (scene != null)
            {
                directory = Path.GetDirectoryName(path);
            }
            else
            {
                MessageBox.Show("Failed to open file: " + path + ". Either Assimp screwed up or the path is not valid.");
                Application.Exit();
            }

            SceneLoader SceneLoader = new SceneLoader();
            List<model> models = new List<model>();
            for (int i = 0; i < scene.mNumMeshes; i++)
            {
                models.Add(SceneLoader.CreateMesh(device, scene.mMeshes[i], scene.mMaterials,directory));
            }

            //////////////////////////////

            // Compile Vertex and Pixel shaders
            var effectByteCode = ShaderBytecode.CompileFromFile("MiniTri.fx", "fx_5_0", ShaderFlags.None, EffectFlags.None);
            var effect = new Effect(device, effectByteCode);
            var technique = effect.GetTechniqueByIndex(0);
            var pass = technique.GetPassByIndex(0);

            // Layout from VertexShader input signature
            var passSignature = pass.Description.Signature;

            // Layout from VertexShader input signature
            var layout = new InputLayout(
                device,
                passSignature,
                new[]
                    {
                        new InputElement("POSITION", 0, Format.R32G32B32_Float, 0, 0),
                        new InputElement("TEXCOORD", 0, Format.R32G32_Float, 12, 0)
                    });

            // Prepare All the stages
            context.Rasterizer.SetViewports(new Viewport(0, 0, form.ClientSize.Width, form.ClientSize.Height, 0.0f, 1.0f));
            context.OutputMerger.DepthStencilState = depthStencilState;

            Input input = new Input(form);
            //FreeLook FreeLook = new SharpExamples.FreeLook(input, (float)form.Width / (float)form.Height);
            CameraFirstPerson FreeLook = new CameraFirstPerson(input, 0, 0, Vector3.Zero, form.Width, form.Height);
            //FreeLook.SetEyeTarget(new Vector3(300), Vector3.Zero);
            Clock Clock = new SharpExamples.Clock();
            Clock.Start();

            effect.GetVariableByName("projection").AsMatrix().SetMatrix(FreeLook.Projection);

            // Main loop
            RenderLoop.Run(form, () =>
                                      {
                                          foreach (var item in models)
                                          {
                                                context.InputAssembler.InputLayout = layout;
                                                context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
                                                int SizeInBytes = Marshal.SizeOf(typeof(VertexPostitionTexture));
                                                context.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(item.vertex, SizeInBytes, 0));
                                                context.InputAssembler.SetIndexBuffer(item.indices, Format.R32_UInt, 0);

                                                float elapsed = Clock.Update();
                                                FreeLook.Update(elapsed);

                                                effect.GetVariableByName("view").AsMatrix().SetMatrix(FreeLook.View);
                                                effect.GetVariableByName("World").AsMatrix().SetMatrix(Matrix.Scaling(5));
                                                effect.GetVariableByName("tex0").AsShaderResource().SetResource(item.ShaderResourceView);
                                                context.ClearRenderTargetView(renderView, Colors.Black);
                                                context.ClearDepthStencilView(depthStencilView, DepthStencilClearFlags.Depth | DepthStencilClearFlags.Stencil, 1, 0);

                                                for (int i = 0; i < technique.Description.PassCount; ++i)
                                                {
                                                    pass.Apply(context);
                                                    context.DrawIndexed(item.numberIndices, 0, 0);
                                                }
                                                swapChain.Present(0, PresentFlags.None);
                                          }

                                      });

            // Release all resources
            foreach (var item in models)
            {
                item.vertex.Dispose();
                item.indices.Dispose();
                item.ShaderResourceView.Dispose();
            }

            layout.Dispose();
            renderView.Dispose();
            backBuffer.Dispose();
            context.ClearState();
            context.Flush();
            device.Dispose();
            context.Dispose();
            swapChain.Dispose();
            factory.Dispose();
        }

        static void Main()
        {
            var form = new RenderForm("FUN STUFF PHYSXS");

            // SwapChain description
            var desc = new SwapChainDescription()
                           {
                               BufferCount = 1,
                               ModeDescription =
                                   new ModeDescription(form.ClientSize.Width, form.ClientSize.Height,
                                                       new Rational(60, 1), Format.R8G8B8A8_UNorm),
                               IsWindowed = true,
                               OutputHandle = form.Handle,
                               SampleDescription = new SampleDescription(1, 0),
                               SwapEffect = SwapEffect.Discard,
                               Usage = Usage.RenderTargetOutput
                           };

            // Create Device and SwapChain
            Device device;
            SwapChain swapChain;
            Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.BgraSupport, new SharpDX.Direct3D.FeatureLevel[] { SharpDX.Direct3D.FeatureLevel.Level_10_0 }, desc, out device, out swapChain);

            var d2dFactory = new SharpDX.Direct2D1.Factory();

            // Ignore all windows events
            Factory factory = swapChain.GetParent<Factory>();
            factory.MakeWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAll);

            // New RenderTargetView from the backbuffer
            Texture2D backBuffer = Texture2D.FromSwapChain<Texture2D>(swapChain, 0);
            var renderView = new RenderTargetView(device, backBuffer);

            Surface surface = backBuffer.QueryInterface<Surface>();

            var d2dRenderTarget = new RenderTarget(d2dFactory, surface,
                                                            new RenderTargetProperties(new PixelFormat(Format.Unknown, AlphaMode.Premultiplied)));

            var solidColorBrush = new SolidColorBrush(d2dRenderTarget, Color.White);

            var sim = new Simulation();

            // Main loop
            RenderLoop.Run(form, () =>
                                      {
                                          d2dRenderTarget.BeginDraw();

                                          int width = form.ClientSize.Width;
                                          int height = form.ClientSize.Height;
                                          var simScaleX = sim.SimBounds.MaxX - sim.SimBounds.MinX;
                                          var simScaleY = sim.SimBounds.MaxY - sim.SimBounds.MinY;
                                          var viewScaleX = sim.ViewBounds.MaxX - sim.ViewBounds.MinX;
                                          var viewScaleY = sim.ViewBounds.MaxY - sim.ViewBounds.MinY;

                                          d2dRenderTarget.Clear(Color.Black);
                                          foreach (Body body in sim.State)
                                          {
                                              var x = Convert.ToSingle((body.Pos.X - sim.SimBounds.MinX) * width / simScaleX);
                                              var y = Convert.ToSingle((body.Pos.Y - sim.SimBounds.MinY) * height / simScaleY);
                                              var xRad = Convert.ToSingle((body.Radius) * width / viewScaleX);
                                              var yRad = Convert.ToSingle((body.Radius) * height / viewScaleY);
                                              var elipse = new EllipseGeometry(d2dFactory, new Ellipse(new Vector2(x, y), xRad, yRad));
                                              d2dRenderTarget.FillGeometry(elipse, solidColorBrush, null);
                                          }

                                          d2dRenderTarget.EndDraw();

                                          sim.Step();
                                          swapChain.Present(0, PresentFlags.None);
                                      });

            // Release all resources
            renderView.Dispose();
            backBuffer.Dispose();
            device.ImmediateContext.ClearState();
            device.ImmediateContext.Flush();
            device.Dispose();
            device.Dispose();
            swapChain.Dispose();
            factory.Dispose();
        }

        private static void Main()
        {
            var form = new RenderForm("SharpDX - MiniTri Direct2D - Direct3D 10 Sample");

            // SwapChain description
            var desc = new SwapChainDescription()
                           {
                               BufferCount = 1,
                               ModeDescription = 
                                   new ModeDescription(form.ClientSize.Width, form.ClientSize.Height,
                                                       new Rational(60, 1), Format.R8G8B8A8_UNorm),
                               IsWindowed = true,
                               OutputHandle = form.Handle,
                               SampleDescription = new SampleDescription(1, 0),
                               SwapEffect = SwapEffect.Discard,
                               Usage = Usage.RenderTargetOutput
                           };

            // Create Device and SwapChain
            Device device;
            SwapChain swapChain;
            Device.CreateWithSwapChain(DriverType.Hardware, DeviceCreationFlags.BgraSupport, new SharpDX.Direct3D.FeatureLevel[] { SharpDX.Direct3D.FeatureLevel.Level_10_0 }, desc, out device, out swapChain);

            var d2dFactory = new SharpDX.Direct2D1.Factory();

            int width = form.ClientSize.Width;
            int height = form.ClientSize.Height;

            var rectangleGeometry = new RoundedRectangleGeometry(d2dFactory, new RoundedRectangle() { RadiusX = 32, RadiusY = 32, Rect = new RectangleF(128, 128, width - 128 * 2, height-128 * 2) });

            // Ignore all windows events
            Factory factory = swapChain.GetParent<Factory>();
            factory.MakeWindowAssociation(form.Handle, WindowAssociationFlags.IgnoreAll);

            // New RenderTargetView from the backbuffer
            Texture2D backBuffer = Texture2D.FromSwapChain<Texture2D>(swapChain, 0);
            var renderView = new RenderTargetView(device, backBuffer);

            Surface surface = backBuffer.QueryInterface<Surface>();


            var d2dRenderTarget = new RenderTarget(d2dFactory, surface,
                                                            new RenderTargetProperties(new PixelFormat(Format.Unknown, AlphaMode.Premultiplied)));

            var solidColorBrush = new SolidColorBrush(d2dRenderTarget, Color.White);

            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();

            // Main loop
            RenderLoop.Run(form, () =>
                                      {
                                          d2dRenderTarget.BeginDraw();
                                          d2dRenderTarget.Clear(Color.Black);
                                          solidColorBrush.Color = new Color4(1, 1, 1, (float)Math.Abs(Math.Cos(stopwatch.ElapsedMilliseconds * .001)));
                                          d2dRenderTarget.FillGeometry(rectangleGeometry, solidColorBrush, null);
                                          d2dRenderTarget.EndDraw();

                                          swapChain.Present(0, PresentFlags.None);
                                      });

            // Release all resources
            renderView.Dispose();
            backBuffer.Dispose();
            device.ImmediateContext.ClearState();
            device.ImmediateContext.Flush();
            device.Dispose();
            device.Dispose();
            swapChain.Dispose();
            factory.Dispose();
        }

//.........這裏部分代碼省略.........
            var sampler = new SamplerState(device, new SamplerStateDescription()
            {
                Filter = Filter.MinMagMipLinear,
                AddressU = TextureAddressMode.Wrap,
                AddressV = TextureAddressMode.Wrap,
                AddressW = TextureAddressMode.Wrap,
                BorderColor = Color.Black,
                ComparisonFunction = Comparison.Never,
                MaximumAnisotropy = 16,
                MipLodBias = 0,
                MinimumLod = 0,
                MaximumLod = 16,
            });

            // Create Constant Buffers
            var vertexConstantBuffer = new Buffer(device, Utilities.SizeOf<VertexShaderData>(), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
            var pixelConstantBuffer = new Buffer(device, Utilities.SizeOf<PixelShaderData>(), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);

            // Prepare some of the stages. The others are mesh dependent and will be set later       
            context.VertexShader.Set(vertexShader);
            context.Rasterizer.SetViewport(new Viewport(0, 0, form.Width, form.Height, 0.0f, 1.0f));
            context.PixelShader.Set(pixelShader);
            context.PixelShader.SetSampler(0, sampler);
            context.OutputMerger.SetTargets(depthView, renderView);
            context.VertexShader.SetConstantBuffer(0, vertexConstantBuffer);
            context.PixelShader.SetConstantBuffer(0, pixelConstantBuffer);

            //allocate data structs for the vertex and pixel constant buffers
            VertexShaderData vsData = new VertexShaderData();
            PixelShaderData psData = new PixelShaderData();

            //set light position
            psData.lightPos = new Vector4(0, 2.5f, 0, 0);

            //update pixel shader constant buffer. Only need to do this once.
            context.UpdateSubresource(ref psData, pixelConstantBuffer);

            // Calc projection matrix
            var proj = Matrix.PerspectiveFovLH((float)Math.PI / 4.0f, form.Width / (float)form.Height, 0.1f, 100.0f);

            // Use clock
            var clock = new Stopwatch();
            clock.Start();

            // Main loop
            RenderLoop.Run(form, () =>
            {
                var time = clock.ElapsedMilliseconds / 1000.0f;

                // Prepare matrices
                Vector3 cameraPosition = new Vector3(0, 3, 5.0f);
                Vector3 cameraLookAt = new Vector3(0, 2.0f, 0);

                //rotate camera
                Vector4 tempPos = Vector3.Transform(cameraPosition, Matrix.RotationY(0.2f * time));
                cameraPosition = new Vector3(tempPos.X, tempPos.Y, tempPos.Z);

                //calculate the view matrix 
                var view = Matrix.LookAtLH(cameraPosition, cameraLookAt, Vector3.UnitY);
                var viewProj = Matrix.Multiply(view, proj);

                // Clear views
                context.ClearDepthStencilView(depthView, DepthStencilClearFlags.Depth, 1.0f, 0);
                context.ClearRenderTargetView(renderView, Color.Black);

                // Update transformation matrices
                vsData.world = Matrix.Translation(0, -model.AABoxCentre.Y / 2, 0);
                vsData.worldView = vsData.world * view;
                vsData.worldViewProj = vsData.world * viewProj;

                //transpose matrices before sending them to the shader
                vsData.world.Transpose();
                vsData.worldView.Transpose();
                vsData.worldViewProj.Transpose();

                //update vertex shader constant buffer
                context.UpdateSubresource(ref vsData, vertexConstantBuffer);

                // Draw the cube
                model.Render(context);

                // Present
                swapChain.Present(0, PresentFlags.None);
            });

            // Release all resources
            model.Dispose();
            vertexShaderByteCode.Dispose();
            vertexShader.Dispose();
            pixelShaderByteCode.Dispose();
            pixelShader.Dispose();
            renderView.Dispose();
            backBuffer.Dispose();
            context.ClearState();
            context.Flush();
            device.Dispose();
            context.Dispose();
            swapChain.Dispose();
            factory.Dispose();
        }

//.........這裏部分代碼省略.........
                    int textureIndex = eyeTexture.SwapTextureSet.CurrentIndex++;

                    immediateContext.OutputMerger.SetRenderTargets(eyeTexture.DepthStencilView, eyeTexture.RenderTargetViews[textureIndex]);
                    immediateContext.ClearRenderTargetView(eyeTexture.RenderTargetViews[textureIndex], Color.Black);
                    immediateContext.ClearDepthStencilView(eyeTexture.DepthStencilView, DepthStencilClearFlags.Depth | DepthStencilClearFlags.Stencil, 1.0f, 0);
                    immediateContext.Rasterizer.SetViewport(eyeTexture.Viewport);
                    //added a custom rasterizer
                    immediateContext.Rasterizer.State = rasterizerState;

                    // Retrieve the eye rotation quaternion and use it to calculate the LookAt direction and the LookUp direction.
                    Quaternion rotationQuaternion = SharpDXHelpers.ToQuaternion(eyePoses[eyeIndex].Orientation);
                    Matrix rotationMatrix = Matrix.RotationQuaternion(rotationQuaternion);
                    Vector3 lookUp = Vector3.Transform(new Vector3(0, -1, 0), rotationMatrix).ToVector3();
                    Vector3 lookAt = Vector3.Transform(new Vector3(0, 0, 1), rotationMatrix).ToVector3();

                    Vector3 viewPosition = position - eyePoses[eyeIndex].Position.ToVector3();

                    //use this to get the first rotation to goal
                    Matrix world = Matrix.Scaling(1.0f) /** Matrix.RotationX(timeSinceStart*0.2f) */* Matrix.RotationY(timeSinceStart * 2 / 10f) /** Matrix.RotationZ(timeSinceStart*3/10f)*/;
                    Matrix viewMatrix = Matrix.LookAtRH(viewPosition, viewPosition + lookAt, lookUp);

                    Matrix projectionMatrix = OVR.ovrMatrix4f_Projection(eyeTexture.FieldOfView, 0.1f, 10.0f, OVR.ProjectionModifier.None).ToMatrix();
                    projectionMatrix.Transpose();

                    Matrix worldViewProjection = world * viewMatrix * projectionMatrix;
                    worldViewProjection.Transpose();

                    // Update the transformation matrix.
                    immediateContext.UpdateSubresource(ref worldViewProjection, constantBuffer);

                    // Draw the cube
                    //immediateContext.Draw(vertices.Length/2, 0);
                    immediateContext.DrawIndexed(indices.Length, 0, 0);
                }

                hmd.SubmitFrame(0, layers);

                immediateContext.CopyResource(mirrorTextureD3D11, backBuffer);
                swapChain.Present(0, PresentFlags.None);


                if (newTextureArrived == true)
                {
                    newTextureArrived = false;
                    DataBox map = device.ImmediateContext.MapSubresource(myTexture, 0, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None);

                    //load the BitMapSource with appropriate formating (Format32bppPRGBA)
                    SharpDX.WIC.BitmapSource bitMap = LoadBitmap(new SharpDX.WIC.ImagingFactory(), streamTexture);
                    //string newFile = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName) + @"\img_merged.jpg";
                    //SharpDX.WIC.BitmapSource bitMap = LoadBitmapFromFile(new SharpDX.WIC.ImagingFactory(), newFile);

                    int width = bitMap.Size.Width;
                    int height = bitMap.Size.Height;
                    int stride = bitMap.Size.Width * 4;

                    bitMap.CopyPixels(stride, map.DataPointer, height * stride);

                    device.ImmediateContext.UnmapSubresource(myTexture, 0);

                    //bitMap.Dispose();
                    streamTexture.Seek(0, SeekOrigin.Begin);
                }


            });
            #endregion
            // Release all resources
            inputLayout.Dispose();
            constantBuffer.Dispose();
            indexBuffer.Dispose();
            vertexBuffer.Dispose();
            inputLayout.Dispose();
            shaderSignature.Dispose();
            pixelShader.Dispose();
            pixelShaderByteCode.Dispose();
            vertexShader.Dispose();
            vertexShaderByteCode.Dispose();
            mirrorTextureD3D11.Dispose();
            layers.Dispose();
            eyeTextures[0].Dispose();
            eyeTextures[1].Dispose();
            immediateContext.ClearState();
            immediateContext.Flush();
            immediateContext.Dispose();
            depthStencilState.Dispose();
            depthStencilView.Dispose();
            depthBuffer.Dispose();
            backBufferRenderTargetView.Dispose();
            backBuffer.Dispose();
            swapChain.Dispose();
            factory.Dispose();

            // Disposing the device, before the hmd, will cause the hmd to fail when disposing.
            // Disposing the device, after the hmd, will cause the dispose of the device to fail.
            // It looks as if the hmd steals ownership of the device and destroys it, when it's shutting down.
            // device.Dispose();

            hmd.Dispose();
            oculus.Dispose();
        }