public MainWindow()
{
InitializeComponent();
//当前窗口创建graphics
canvas = this.CreateGraphics();
//当前窗口的宽高值
buffer = new Bitmap(this.Width, this.Height);
RenderUtility.SetFrameBuffer(buffer);
//根据buffer的大小设定zbuffer
zbuffer = new float[this.Width, this.Height];
RenderUtility.SetZBuffer(zbuffer);
//创建平行光,平行光的位置默认为(0, 20, 0),光照颜色为橘黄色,环境光颜色为白色
light = new Light(new Vector3(0, 20, 0, 1), new Color4(Color.Orange), new Color4(Color.White));
RenderUtility.SetLight(light);
//创建摄像机, 摄像机位置默认为(0,0,0),朝向z轴方向(0,0,1),以(0,1,0)为单位up向量,y方向的视角为90度,zn = 1, zf = 500
float aspect = (float)this.Width / (float)this.Height;
camera = new Camera(new Vector3(0, 0, 0, 1), new Vector3(0, 0, 1, 0), new Vector3(0, 1, 0, 0),
3.1415926f / 4, aspect,
1.0f, 500.0f);
//设定渲染的模式
renderType = RenderType.WireFrame;
renderType = RenderType.VertexColor;
RenderUtility.SetRenderType(renderType);
//加载模型
//meshs,要渲染的网格列表
meshs = new List <Mesh>();
Mesh cube = new Mesh(Cube.positions, Cube.indices, Cube.colors);
meshs.Add(cube);
//开启计时器
SetupTimer();
}