[c#] swap chain

		bool InitializeGraphics()
		{
			try
			{
				Caps caps = Manager.GetDeviceCaps( Manager.Adapters.Default.Adapter, 
					DeviceType.Hardware );
				CreateFlags flags;

				if( caps.DeviceCaps.SupportsHardwareTransformAndLight )
					flags = CreateFlags.HardwareVertexProcessing;
				else
					flags = CreateFlags.SoftwareVertexProcessing;

				presentParams[0] = new PresentParameters();
				presentParams[1] = new PresentParameters();

				presentParams[0].Windowed = true;
				presentParams[0].SwapEffect = SwapEffect.Discard;
				DisplayMode mode = new DisplayMode();

				presentParams[0].BackBufferFormat = mode.Format;
				presentParams[0].BackBufferWidth = panel1.Width;
				presentParams[0].BackBufferHeight = panel1.Height;
				presentParams[0].EnableAutoDepthStencil = true;
				presentParams[0].AutoDepthStencilFormat = DepthFormat.D16;

				presentParams[1].Windowed = true;
				presentParams[1].SwapEffect = SwapEffect.Discard;

				presentParams[1].BackBufferFormat = mode.Format;
				presentParams[1].BackBufferWidth = panel2.Width;
				presentParams[1].BackBufferHeight = panel2.Height;
				presentParams[1].EnableAutoDepthStencil = true;
				presentParams[1].AutoDepthStencilFormat = DepthFormat.D16;

				// create the device
				device = new Device(0, DeviceType.Hardware, this, flags, presentParams);
				
				device.DeviceReset += new System.EventHandler(this.OnResetDevice);
				device.DeviceLost += new EventHandler(this.OnLostDevice);

				this.OnResetDevice(device, null);
				initializedDirect3D = true;
			}
			catch(Direct3DXException)
			{
				return false;
			}

			return true;
		}

		public void OnResizingDevice()
		{
			if(initializedDirect3D)
			{
				pause = false;
				Reset_Present_Params();
				device.Reset(presentParams);
			}
		}

		private void Reset_Present_Params()
		{
			DisplayMode mode = new DisplayMode();

			presentParams[0].Windowed = true;
			presentParams[0].SwapEffect = SwapEffect.Discard;
			presentParams[0].BackBufferFormat = mode.Format;
			presentParams[0].BackBufferWidth = panel1.Width;
			presentParams[0].BackBufferHeight = panel1.Height;
			presentParams[0].EnableAutoDepthStencil = true;
			presentParams[0].AutoDepthStencilFormat = DepthFormat.D16;

			presentParams[1].Windowed = true;
			presentParams[1].SwapEffect = SwapEffect.Discard;
			presentParams[1].BackBufferFormat = mode.Format;
			presentParams[1].BackBufferWidth = panel2.Width;
			presentParams[1].BackBufferHeight = panel2.Height;
			presentParams[1].EnableAutoDepthStencil = true;
			presentParams[1].AutoDepthStencilFormat = DepthFormat.D16;
		}

		public void OnResetDevice(object sender, EventArgs e)
		{
			sc_0 = device.GetSwapChain(0);
			sc_1 = new SwapChain(device, presentParams[1]);
			device.RenderState.ZBufferEnable = true;
			device.RenderState.Ambient = System.Drawing.Color.White;
		}

		void SetupMatrices()
		{

			float scale = 1.0f; // The gun is gigantic, so let's scale it down a bit
			Vector3 pos = new Vector3(); // Let's display at 0, 0,
			Vector3 camPos = new Vector3(0.0f, 9.5f, 17.0f);
			Vector3 lookAt = new Vector3(); // We are facing 0, 0, 0, so we can see the model
			Vector3 camUp = new Vector3(0, 1, 0); // Up vector of the cam

			// Setup the camera
			device.Transform.Projection = Matrix.PerspectiveFovLH((float)Math.PI / 4, this.Width / this.Height, 1.0f, 1000.0f); 
			device.Transform.View = Matrix.LookAtLH(camPos, lookAt, camUp);

			// Display our model
			device.Transform.World = Matrix.Scaling(scale, scale, scale) * 
Matrix.Translation(0f, 0f, 0f)*Matrix.RotationY(Environment.TickCount/1000.0f); 

		}

		private void Render()
		{
			if (device == null)
				return;

			if (pause)
				return;

			if(x_file_list.Count > 0)
			{
				// panel1
				Surface pBackBuffer = sc_0.GetBackBuffer(0, BackBufferType.Mono);
				device.SetRenderTarget(0, pBackBuffer);
				//Clear the backbuffer to a blue color
				device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, System.Drawing.Color.DarkGray, 1.0f, 0);			
				device.BeginScene();
				// Setup the world, view, and projection matrices
				SetupMatrices();
        
				// Meshes are divided into subsets, one for each material. Render them in
				// a loop
				for( int i=0; i<meshMaterials.Length; i++ )
				{
					// Set the material and texture for this subset
					device.Material = meshMaterials;
					device.SetTexture(0, meshTextures);
    
					// Draw the mesh subset
					xMesh.DrawSubset(i);
				}

				if(active_panel == panel1)
					Draw_Active_Rect(panel1);

				//End the scene
				device.EndScene();
				sc_0.Present(panel1);
				//device.Present();
				pBackBuffer.ReleaseGraphics();

				// panel2
				Surface pBackBuffer2 = sc_1.GetBackBuffer(0, BackBufferType.Mono);
				device.SetRenderTarget( 0, pBackBuffer2 );


				//Clear the backbuffer to a blue color
				device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, System.Drawing.Color.DarkGray, 1.0f, 0);
				device.BeginScene();
				// Setup the world, view, and projection matrices
				SetupMatrices();
        
				// Meshes are divided into subsets, one for each material. Render them in
				// a loop
				for( int i=0; i<meshMaterials.Length; i++ )
				{
					// Set the material and texture for this subset
					device.Material = meshMaterials;
					device.SetTexture(0, meshTextures);
    
					// Draw the mesh subset
					xMesh.DrawSubset(i);
				}
				
				if(active_panel == panel2)
					Draw_Active_Rect(panel2);

				//End the scene
				device.EndScene();
				//device.Present();

				sc_1.Present(panel2);
				pBackBuffer2.ReleaseGraphics();

				//pause = true;
			}
		}