managed DirectX9第一个3D程序

对3D的东西一直很感兴趣，今天安装了DirectX9.0 的SDK,看了一片文章，挺不错的:
managed DirectX9（第一章） http://dev.csdn.net/article/62/62703.shtm
还有SDK里面的文档,比葫芦画瓢地写出了第一个3D程序:

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
using System.Text;

namespace DXTest
{
    public class Form1 : System.Windows.Forms.Form
    {
        private Device device=null;//声明一个Device
        private float x=8.0f;
        private float y=0.0f;
        private float z=7.0f;

        private System.ComponentModel.Container components = null;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.Button button4;

        public void InitGraph()
        {
            PresentParameters pp=new PresentParameters();
            pp.Windowed=true;
            pp.SwapEffect=SwapEffect.Discard;

            device=new Device(0,DeviceType.Hardware,this,CreateFlags.SoftwareVertexProcessing,pp);
        }
        protected override void OnPaint(PaintEventArgs e)
        {
            
            base.OnPaint (e);

            device.RenderState.Lighting=true;//开灯
            device.RenderState.CullMode = Cull.None;//关闭剔除模式

            device.Lights[0].Type = LightType.Directional;//以下设置light
            device.Lights[0].Direction = new Vector3(
                (float)Math.Cos(Environment.TickCount / 250.0f),
                -7.0f,
                (float)Math.Sin(Environment.TickCount / 250.0f));
            device.Lights[0].Diffuse = System.Drawing.Color.White;
            device.Lights[0].Attenuation0 = 0.2f;
            device.Lights[0].Range = 1000.0f;
            device.Lights[0].Enabled = true;

            device.Clear(ClearFlags.Target,System.Drawing.Color.CornflowerBlue,1.0f,0);//以清除的方式来显示带有颜色的背景的form

            //CustomVertex.TransformedColored[] verts=new Microsoft.DirectX.Direct3D.CustomVertex.TransformedColored[3];
            //verts[0].Color=System.Drawing.Color.Red.ToArgb();
            //verts[0].Position=new Vector4(11f,50.0f,0.5f,1.0f);
            //verts[1].Color=System.Drawing.Color.White.ToArgb();
            //verts[1].Position=new Vector4(222f,10.0f,0.5f,56.0f);
            //verts[2].Color=System.Drawing.Color.Black.ToArgb();
            //verts[2].Position=new Vector4(this.Width/1.0f-20.0f,this.Height/1.0f-80.0f,2.5f,23.0f);
            
            CustomVertex.PositionNormalColored[] verts2=new Microsoft.DirectX.Direct3D.CustomVertex.PositionNormalColored[3];//定义带法线的坐标顶点
            verts2[0].Position=new Vector3(-3.0f,0.0f,0.0f); //中心点的坐标是(0,0,0)
            verts2[0].Normal=new Vector3(0.0f,1.0f,-1.0f);
            verts2[0].Color=System.Drawing.Color.Red.ToArgb();
            verts2[1].Position=new Vector3(0.0f,4.0f,0.0f);
            verts2[1].Normal=new Vector3(0.0f,-3.0f,-1.0f);
            verts2[1].Color=System.Drawing.Color.Black.ToArgb();
            verts2[2].Position=new Vector3(3.0f,0.0f,0.0f);
            verts2[2].Normal=new Vector3(02.0f,1.0f,-1.0f);
            verts2[2].Color=System.Drawing.Color.White.ToArgb();

            //镜头坐标
            device.Transform.View = Matrix.LookAtLH( 
                new Vector3( x,y,z), 
                new Vector3( 0.0f, 0.0f, 0.0f ), 
                new Vector3( 0.0f, 1.0f, 0.0f ) );
            device.Transform.Projection = Matrix.PerspectiveFovLH(
                (float)Math.PI / 4, 
                1.0f, 
                1.0f, 
                100.0f );

            //产生旋转动作
            int  iTime  = Environment.TickCount % 1000;
            float fAngle = iTime * (2.0f * (float)Math.PI) / 1000.0f+(float)Math.PI;
            device.Transform.World = Matrix.RotationY( fAngle );

            device.BeginScene();//开始一个场景
            //device.VertexFormat=CustomVertex.TransformedColored.Format;
            device.VertexFormat=CustomVertex.PositionNormalColored.Format;
            device.DrawUserPrimitives(PrimitiveType.TriangleList,1,verts2);
            device.EndScene();
            device.Present();

            this.Invalidate();//使窗体失效
            
        }

        protected override void OnResize(EventArgs e)
        {
            base.OnResize (e);
        }


        public Form1()
        {
            InitializeComponent();
            this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.Opaque, true);
        }

        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }


        Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码
        /**//// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.button4 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(40, 8);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(32, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "^";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(8, 32);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(32, 23);
            this.button2.TabIndex = 1;
            this.button2.Text = "<-";
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(72, 32);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(32, 23);
            this.button3.TabIndex = 2;
            this.button3.Text = "->";
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // button4
            // 
            this.button4.Location = new System.Drawing.Point(40, 56);
            this.button4.Name = "button4";
            this.button4.Size = new System.Drawing.Size(32, 23);
            this.button4.TabIndex = 3;
            this.button4.Text = "!";
            this.button4.Click += new System.EventHandler(this.button4_Click);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Controls.Add(this.button4);
            this.Controls.Add(this.button3);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }
        #endregion

        [STAThread]
        static void Main() 
        {
            Form1 frm=new Form1();
            frm.Show();
            frm.InitGraph();
            Application.Run(frm);
            frm.ResizeRedraw=true;
        }

        private void button3_Click(object sender, System.EventArgs e)
        {
            x=x+1.0f;
        }

        private void button1_Click(object sender, System.EventArgs e)
        {
            y=y+1.0f;
        }

        private void button2_Click(object sender, System.EventArgs e)
        {
            x=x-1.0f;
        }

        private void button4_Click(object sender, System.EventArgs e)
        {
            y=y-1.0f;
        }

        private void Form1_Load(object sender, System.EventArgs e)
        {
        
        }
    }
}