earth.cs

一个Wince的小程序

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;

namespace WindowsFormsApplication1
{
    class Earth : BaseEarth
    {
        public Earth(ref Device device, Matrix location)
            : base(ref device)
        {
            meshDevice = device;
            locationOffset = location;
        }
        private Material[] mMaterials; //保存材质
        private Texture[] mTextures; //保存纹理
        private Matrix locationOffset; //用来保存网格对象的相对位置
        //private Mesh mMesh = null; //三角形网格对象
        private Device meshDevice; //需要显示在哪个设备上。
        public bool LoadMesh(string meshfile)
        {
            ExtendedMaterial[] mtrl;
            try
            {
                // 装载文件
                mMesh = Mesh.FromFile(meshfile, MeshFlags.Managed, meshDevice, out mtrl);
                // 如果有材质的话，装入它们
                if ((mtrl != null) && (mtrl.Length > 0))
                {
                    mMaterials = new Material[mtrl.Length];
                    mTextures = new Texture[mtrl.Length];
                    // 得到材质和纹理
                    for (int i = 0; i < mtrl.Length; i++)
                    {
                        mMaterials[i] = mtrl[i].Material3D;
                        if ((mtrl[i].TextureFilename != null) && (mtrl[i].TextureFilename != string.Empty))
                        {
                            //前面得到的纹理的路径是相对路径，需要保存的是绝对路径，通过应用程序路径可以获得
                            mTextures[i] = TextureLoader.FromFile(meshDevice, @"..\..\" + mtrl[i].TextureFilename);
                        }
                    }
                }
                return true;
            }
            catch
            {
                return false;
            }
        }

        public void Render(Matrix worldTransform)
         {
              //把位置变为世界坐标
              meshDevice.Transform.World = Matrix.Multiply(locationOffset, worldTransform);
              //绘制网格
              for (int i = 0; i < mMaterials.Length; i++)
              {
                   meshDevice.Material = mMaterials[i];
                   meshDevice.SetTexture(0, mTextures[i]);
                   mMesh.DrawSubset(i);
              }
         }
        public override void Render()
 
         {
              base.Render();
              //把位置变为世界坐标
         //   meshDevice.Transform.World = Matrix.Multiply(locationOffset, worldTransform);
              //绘制网格
 
         }


    }
}