Unity 图片翻转

//水平翻转图片
    public static Texture2D horizontalFlipPic(Texture2D texture2d)
    {
        int width = texture2d.width;//得到图片的宽度.   
        int height = texture2d.height;//得到图片的高度 

        Texture2D NewTexture2d = new Texture2D(width, height);//创建一张同等大小的空白图片 

        int i = 0;

        while (i < width)
        {
            NewTexture2d.SetPixels(i, 0,1, height, texture2d.GetPixels(width - i - 1, 0, 1, height));
            i++;            
        }
        NewTexture2d.Apply();

        return NewTexture2d;
    }

    //垂直翻转图片
    public static Texture2D verticalFlipPic(Texture2D texture2d)
    {
        int width = texture2d.width;//得到图片的宽度.   
        int height = texture2d.height;//得到图片的高度 

        Texture2D NewTexture2d = new Texture2D(width, height);//创建一张同等大小的空白图片 

        int i = 0;

        while (i < height)
        {
            NewTexture2d.SetPixels(0, i, width, 1, texture2d.GetPixels (0,width - i - 1, width, 1));
            i++;
        }
        NewTexture2d.Apply();

        return NewTexture2d;
    }