如何为纹理边框设置UV

Question

我正在生成一个能够在没有纹理边缘受像素影响的情况下进行缩放的平面。飞机需要能够保持其边界比例，但能够伸展到几乎任何尺寸。网格有8个顶点和10个三角形来构成边框。无论如何这里是我得到的。忽略网格几何上的数字。

是否可以编辑UV以获得所需结果？ 这是代码：

Mesh mesh = new Mesh();
    var renderer = mesh.AddRenderer();


    //create verticies

    mesh.vertices = new Vector3[] {

        //vertices in order for convienience 
        Manager.GUI.ScreenToWorldPoint(new Vector3(0f,0f,0f)),                            //0
        Manager.GUI.ScreenToWorldPoint(new Vector3(padding,padding,0)),                   //1
        Manager.GUI.ScreenToWorldPoint(new Vector3(width - padding, padding,0f)),         //2
        Manager.GUI.ScreenToWorldPoint(new Vector3(width,0f,0f)),                         //3
        Manager.GUI.ScreenToWorldPoint(new Vector3(width - padding, height - padding,0f)),//4
        Manager.GUI.ScreenToWorldPoint(new Vector3(width,height,0f)),                     //5
        Manager.GUI.ScreenToWorldPoint(new Vector3(padding, height - padding, 0f)),       //6
        Manager.GUI.ScreenToWorldPoint(new Vector3(0f,height,0f)),                        //7
    };



    //create triangles
    mesh.triangles = new int[] {
        7,5,6,
        6,5,4,
        4,5,3,
        2,4,3,
        0,2,3,
        0,1,2,
        0,7,6,
        0,6,1,
        1,6,4,
        1,4,2
};

    //create UV's uvs are in order of creation for convienience
       mesh.uv = new Vector2[] {
           new Vector2(0f,0f),
           new Vector2(padding/width, padding/height),
           new Vector2((width-padding)/width, padding/height),
           new Vector2(1f,0f),
           new Vector2((width - padding)/width,(height-padding)/height),
           new Vector2(1f,1f),
           new Vector2(padding/width,(height-padding)/height),
           new Vector2(0f,1f)





    };



    mesh.calculateNormals();
    mesh.calculateBounds();
    renderer.Texture = mytex;
    return plane;
}

填充是纹理周围定义的忽略缩放的像素，而高度和宽度是形状的尺寸。

Answer 1

正如乔治所说，我生成的网格使得无法在没有趣味的情况下缩放图像。修复网格必须重新制作成有效的东西。代码现在是

Mesh mesh = new Mesh();
    var renderer = mesh.AddRenderer();
         mesh.vertices = new Vector3[] {

                //vertices in order for convienience  
                Manager.GUI.ScreenToWorldPoint(new Vector3(0f,0f,0f)),                            //0
                Manager.GUI.ScreenToWorldPoint(new Vector3(padding,0f,0f)),                      //1
                Manager.GUI.ScreenToWorldPoint(new Vector3(padding,padding,0)),                   //2
                Manager.GUI.ScreenToWorldPoint(new Vector3(width - padding, 0f,0f)),              //3
                Manager.GUI.ScreenToWorldPoint(new Vector3(width - padding, padding,0f)),         //4
                Manager.GUI.ScreenToWorldPoint(new Vector3(width,0f,0f)),                         //5
                Manager.GUI.ScreenToWorldPoint(new Vector3(width,padding,0f)),                    //6
                Manager.GUI.ScreenToWorldPoint(new Vector3(width , height - padding,0f)),         //7
                Manager.GUI.ScreenToWorldPoint(new Vector3(width - padding, height - padding,0f)),//8
                Manager.GUI.ScreenToWorldPoint(new Vector3(width,height,0f)),                     //9
                Manager.GUI.ScreenToWorldPoint(new Vector3(width - padding,height,0f)),           //10
                Manager.GUI.ScreenToWorldPoint(new Vector3(padding, height, 0f)),                 //11
                Manager.GUI.ScreenToWorldPoint(new Vector3(padding, height - padding, 0f)),       //12
                Manager.GUI.ScreenToWorldPoint(new Vector3(0f,height,0f)),                        //13
                Manager.GUI.ScreenToWorldPoint(new Vector3(0f,height - padding,0f)),              //14
                Manager.GUI.ScreenToWorldPoint(new Vector3(0f,padding,0f)),                       //15
            };



            //create triangles
            mesh.triangles = new int[] {
                15,2,0,
                1,0,2,
                1,2,4,
                1,4,3,
                3,4,6,
                3,6,5,
                4,8,7,
                4,7,6,
                8,10,9,
                8,9,7,
                12,10,8,
                12,11,10,
                14,11,12,
                14,13,11,
                15,14,12,
                15,12,2,
                2,12,8,
                2,8,4

    };

            //create UV's uvs are in order of creation for convienience
               mesh.uv = new Vector2[] {
                   new Vector2(0f,0f),   //0
                   new Vector2(padding / width, 0f), //1
                   new Vector2(padding/width, padding/height), //2
                   new Vector2((width-padding)/width, 0f), //3
                   new Vector2((width-padding)/width, padding/height), //4
                   new Vector2(1f,0f), //5
                   new Vector2(1f,padding / height), //6
                    new Vector2(1f, (height - padding) / height), //7
                   new Vector2((width - padding)/width,(height-padding)/height),//8
                   new Vector2(1f,1f), //9
                    new Vector2((width -padding)/width,1f), //10
                    new Vector2(padding/width,1f), //11
                   new Vector2(padding/width,(height-padding)/height), //12
                   new Vector2(0f,1f), //13
                   new Vector2(0f,(height - padding) / height), //14
                   new Vector2(0f,padding / height) //15





            };



            mesh.RecalculateNormals();
            mesh.RecalculateBounds();

            return plane;

希望它可以帮助其他程序员