UV 坐标

三维模型除了顶点XYZ坐标就是UV坐标了，先上图：

它的坐标是这样的,定义纹理坐标的顺序为：（0,0）-》（1.0,0.0）-》（0.0,1.0）-》（1.0,1.0）【不要搞错哦】

如果UV 的坐标大于1 ,那么将根据图片的Wrap Mode设置来决定是拉伸还是重复

自己搞一下最好了：附上一段测试代码：

go = new GameObject ();meshFilter = go.AddComponent<MeshFilter> ();meshRender = go.AddComponent<MeshRenderer> ();mesh = meshFilter.mesh;mesh.vertices = new Vector3[]{new Vector3(0.0f,0.0f,0.0f),new Vector3(1.0f,0.0f,0.0f),new Vector3(0.0f,1.0f,0.0f)};mesh.triangles = new int[]{0,1,2};mesh.uv = new Vector2[]{ new Vector2(0.0f,0.0f),new Vector2(0.0f,1.0f),new Vector2(10.0f,0.0f)};material = new Material (Shader.Find ("Custom/BasicDiffuse"));meshRender.material = material;meshRender.sharedMaterial.SetTexture ("_MainTex", tex);

图片和shader自己要设置下