一起学WP7 XNA游戏开发(六. 3d Model的载入)

在XNA中3D Model 一般都是autodesk公司的fbx 格式。载入的方法和2D基本上是一样的，但是在绘制时是有很大不同的。

一．载入：

protected override void LoadContent()

        {

            tankModel = Content.Load<Model>("tank");//载入fbx model

           

            tankBonesTransforms = new Matrix[tankModel.Bones.Count];//创建一个model的boneTransform数组，用来保存所有的model boneTransform.

 

        }

 

二．绘制：

tankModel.CopyAbsoluteBoneTransformsTo(tankBonesTransforms);//将model中的boneTransform拷到数组中，为绘制做准备

     Matrix projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4,                                                                    GraphicsDevice.Viewport.AspectRatio, 10, 20000);//创建投影矩阵

 

    Matrix view = Matrix.CreateLookAt(new Vector3(1500, 550, 0) * 1 + new Vector3(0, 150, 0), new Vector3(0, 150, 0), Vector3.Up);//创建视图矩阵，将世界坐标转为摄像机的坐标

 

            foreach (ModelMesh m in tankModel.Meshes)//开始绘制世界坐标中的每个对象

            {

                foreach (BasicEffect e in m.Effects)

                {

                    e.World = tankBonesTransforms[m.ParentBone.Index];

                    e.View = view;

                    e.Projection = projection;

                    e.LightingEnabled = true;

 

                    e.SpecularColor = new Vector3(0.8f, 0.8f, 0.6f);

                    e.SpecularPower = 16;

                    e.TextureEnabled = true;

                  

                }

 

                m.Draw();//使用ModelMesh中的draw方法来进行绘制，而不是用SpriteBatch中的draw方法来绘制

 

            }

 

示例下载地址：http://www.52winphone.com/bbs/viewthread.php?tid=282&extra=page%3D1