c# i directX

0

Witam wszystkich,
po zainstalowaniu SharpDevelop (wcześniej bawiłem sie na MS VisualStudio) zauważyłem, że jest tam przykład DirectX. Spodobał mi się ten język, ale w tym konkretnum kodzie nie moge sobie poradzić:

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;

using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;

namespace _d
{
	/// <summary>
	/// This is the main class of my Direct3D application
	/// </summary>
	public class MainClass : Form
	{
		/// <summary>
		/// The rendering device
		/// </summary>
		Device device = null;
		CustomVertex.TransformedColored[] vertices;
		float angle=1.0f;
	
		
		public MainClass()
		{
			this.ClientSize = new System.Drawing.Size(640, 480);
			this.Text = "f";
		}
		
		public bool InitializeGraphics()
		{
			try {
				// Now let's setup the Direct3D stuff
				PresentParameters presentParams = new PresentParameters();
				presentParams.Windowed   = true;
				presentParams.SwapEffect = SwapEffect.Discard;
				
				// Create the device
				device = new Device(0, DeviceType.Hardware, this, CreateFlags.SoftwareVertexProcessing, presentParams);
				
				// Setup the event handlers for the device
				device.DeviceLost     += new EventHandler(this.InvalidateDeviceObjects);
				device.DeviceReset    += new EventHandler(this.RestoreDeviceObjects);
				device.Disposing      += new EventHandler(this.DeleteDeviceObjects);
				device.DeviceResizing += new CancelEventHandler(this.EnvironmentResizing);
				
				device.Transform.World = Matrix.Identity;
				
				return true;
			} catch (DirectXException) {
				return false;
			}
		}
		
		protected virtual void InvalidateDeviceObjects(object sender, EventArgs e)
		{
		}
		
		protected virtual void RestoreDeviceObjects(object sender, EventArgs e)
		{
		}
		
		protected virtual void DeleteDeviceObjects(object sender, EventArgs e)
		{
		}
		
		protected virtual void EnvironmentResizing(object sender, CancelEventArgs e)
		{
		}
		
		
		
		/// <summary>
		/// This method moves the scene
		/// </summary>
		
		protected virtual void FrameMove()
		{
			// TODO : Frame movement
			device.Transform.World = Matrix.RotationZ((System.Environment.TickCount/450f) / (float)Math.PI);
		}
		
		/// <summary>
		/// This method renders  the scene
		/// </summary>
		protected virtual void Render()
		{
			if (device != null) {
				device.Clear(ClearFlags.Target, Color.Black, 1.0f, 0);
				device.BeginScene();
				
				// TODO : Scene rendering
				
				 vertices = new CustomVertex.TransformedColored[3];
				vertices[0].Position = new Vector4(150f, 100f, 0f, 1f);
				vertices[0].Color = Color.Red.ToArgb();
				vertices[1].Position = new Vector4(this.Width/2+100f, 100f, 0f, 1f);
				vertices[1].Color = Color.Green.ToArgb();
				vertices[2].Position = new Vector4(250f, 300f, 0f, 1f);
				vertices[2].Color = Color.Yellow.ToArgb();
				device.VertexFormat = CustomVertex.TransformedColored.Format;				

				device.DrawUserPrimitives(PrimitiveType.TriangleList, 1, vertices);
				
				device.EndScene();
				device.Present();
			}
		}
		
		/// <summary>
		/// Our mainloop
		/// </summary>
		public void Run()
		{
			// While the form is still valid, render and process messages
			while (Created) {
				FrameMove();	
				Render();
				Application.DoEvents();
			}
		}
		
		protected override void OnPaint(PaintEventArgs e)
		{
			this.Render();
		}
		
		protected override void OnKeyPress(KeyPressEventArgs e)
		{
			base.OnKeyPress(e);
			if ((int)e.KeyChar == (int)System.Windows.Forms.Keys.Escape) {
				this.Close(); 
			}
		}
		
		/// <summary>
		/// The main entry point for the application
		/// </summary>
		static void Main()
		{
			using (MainClass mainClass = new MainClass()) {
				if (!mainClass.InitializeGraphics()) {
					MessageBox.Show("Error while initializing Direct3D");
					return;
				}
				mainClass.Show();
				mainClass.Run();
			}
		}
	}
}

nie moge obracać tego trójkąta. Wszędzie na necie znajduje tylko:

device.Transform.World = Matrix.RotationZ(kąt);

ale to nie działa. W ogóle co to jest ten Matrix? Czy ja man do tego jakos dodawać moje vertexy?</cpp>

Dziękuję za wszystkie odpowiedzi.

0

Zobacz, może inny sposób:

rotationAngle += 0.01f;
rotationAngle %= Geometry.DegreeToRadian(360);

Matrix rotateX = Matrix.RotationX(rotationAngle);
Matrix rotateY = Matrix.RotationY(0);
Matrix world = Matrix.Multiply(rotateX, rotateY);
device.SetTransform( TransformType.World, world );
0

W ogóle co to jest ten Matrix?

Matrix to po angielsku po prostu macierz.

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