public partial class DirectTest : Form
	{
		private Device device= null;
		private float angle = 0.0f;
		Light light = new Light();

		public DirectTest()
		{
			InitializeComponent();

			this.Size = new Size(800, 600);
			this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.Opaque, true);
		}
		/// <summary>
		/// We will initialize our graphics device here
		/// </summary>
		public void InitializeGraphics()
		{
			PresentParameters pres_params = new PresentParameters()
			{
				Windowed = true,
				SwapEffect = SwapEffect.Discard
			};
			device = new Device(new Direct3D(), 0, DeviceType.Hardware, this.Handle, 
						CreateFlags.SoftwareVertexProcessing, pres_params);
		}

		private void SetupCamera()
		{
			device.SetRenderState(RenderState.CullMode, Cull.None);
			device.SetTransform(TransformState.World, Matrix.RotationAxis(new Vector3(angle / ((float)Math.PI * 2.0f),
							 angle / ((float)Math.PI * 4.0f), angle / ((float)Math.PI * 6.0f)),
							angle / (float)Math.PI));
			angle += 0.1f;
			device.SetTransform(TransformState.Projection, Matrix.PerspectiveFovLH((float)Math.PI /
				4, this.Width / this.Height, 1.0f, 100.0f));
			device.SetTransform(TransformState.View, Matrix.LookAtLH(new Vector3(0, 0, 5.0f),
				new Vector3(), new Vector3(0, 1, 0)));
			device.SetRenderState(RenderState.Lighting, false);
		}

		protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
		{
			device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, Color.CornflowerBlue, 1.0f, 0);
			SetupCamera();

			CustomVertex.PositionColored[] verts = new CustomVertex.PositionColored[3];
			verts[0].Position = new Vector3(0.0f, 1.0f, 1.0f);
			verts[0].Normal = new Vector3(0.0f, 0.0f, -1.0f);
			verts[0].Color = System.Drawing.Color.White.ToArgb();
			verts[1].Position = new Vector3(-1.0f, -1.0f, 1.0f);
			verts[1].Normal = new Vector3(0.0f, 0.0f, -1.0f);
			verts[1].Color = System.Drawing.Color.White.ToArgb();
			verts[2].Position = new Vector3(1.0f, -1.0f, 1.0f);
			verts[2].Normal = new Vector3(0.0f, 0.0f, -1.0f);
			verts[2].Color = System.Drawing.Color.White.ToArgb();

			light.Type = LightType.Point;
			light.Position = new Vector3();
			light.Diffuse = System.Drawing.Color.White;
			light.Attenuation0 = 0.2f;
			light.Range = 10000.0f;

			device.SetLight(0, light);
			device.EnableLight(0, true);

			device.BeginScene();

			device.VertexFormat = CustomVertex.PositionColored.format;
			device.DrawUserPrimitives<CustomVertex.PositionColored>(PrimitiveType.TriangleList, 1, verts);
			device.EndScene();

			device.Present();
			this.Invalidate();
		}
	}
}

    	[StructLayout(LayoutKind.Sequential)]
		public struct PositionNormalColored
		{
			public Vector3 Position;
			public int Color;
			public Vector3 Normal;
			public static readonly VertexFormat format = VertexFormat.Diffuse | VertexFormat.Position | VertexFormat.Normal;
		}

CustomVertex.PositionColored[] verts = new CustomVertex.PositionColored[3];			verts[0].Position = new Vector3(0.0f, 1.0f, 1.0f);			verts[0].Normal = new Vector3(0.0f, 0.0f, -1.0f);			verts[0].Color = System.Drawing.Color.White.ToArgb();			verts[1].Position = new Vector3(-1.0f, -1.0f, 1.0f);			verts[1].Normal = new Vector3(0.0f, 0.0f, -1.0f);			verts[1].Color = System.Drawing.Color.White.ToArgb();			verts[2].Position = new Vector3(1.0f, -1.0f, 1.0f);			verts[2].Normal = new Vector3(0.0f, 0.0f, -1.0f);			verts[2].Color = System.Drawing.Color.White.ToArgb();

CustomVertex.PositionNormalColored[] verts = new CustomVertex.PositionNormalColored[3];			verts[0].Position = new Vector3(0.0f, 1.0f, 1.0f);			verts[0].Normal = new Vector3(0.0f, 0.0f, -1.0f);			verts[0].Color = System.Drawing.Color.White.ToArgb();			verts[1].Position = new Vector3(-1.0f, -1.0f, 1.0f);			verts[1].Normal = new Vector3(0.0f, 0.0f, -1.0f);			verts[1].Color = System.Drawing.Color.White.ToArgb();			verts[2].Position = new Vector3(1.0f, -1.0f, 1.0f);			verts[2].Normal = new Vector3(0.0f, 0.0f, -1.0f);			verts[2].Color = System.Drawing.Color.White.ToArgb();