参考链接：https://blog.csdn.net/weixin_33726318/article/details/93867101

初始化窗体的程序

比如title和backColor什么的

  1.  public partial class MainForm : GameWindow
  2.     {
  3.         //int width, int height, GraphicsMode mode, string title,
  4.         //GameWindowFlags options, DisplayDevice device, 
  5.         //int major, int minor, GraphicsContextFlags flags, 
  6.         //IGraphicsContext sharedContext, bool isSingleThreaded
  7.         public MainForm():base(300,300,GraphicsMode.Default,"第一个窗口",GameWindowFlags.Default,DisplayDevice.Default,4,0,GraphicsContextFlags.ForwardCompatible)
  8.         {
  9.             //InitializeComponent();
  10.             Title += ":OpenGL Version" + GL.GetString(StringName.Version);
  12.         }
  13.         //调整窗口时重置视图ViewPort
  14.         protected override void OnResize(EventArgs e)
  15.         {
  16.             GL.Viewport(0, 0, Width, Height);
  17.         }
  18.         //窗口加载时  初始化一次
  19.         protected override void OnLoad(EventArgs e)
  20.         {
  21.             CursorVisible = true;
  22.         }
  23.         //每帧更新内容
  24.         protected override void OnUpdateFrame(FrameEventArgs e)
  25.         {
  26.             HandleKeyboard();
  27.         }
  28.         //通过按Escape键轻松关闭窗口 Esc键
  29.         private void HandleKeyboard()
  30.         {
  31.             var keyState = Keyboard.GetState();
  33.             if (keyState.IsKeyDown(Key.Escape))
  34.             {
  35.                 Exit();
  36.             }
  37.         }
  39.         //最后一帧 Title记录共进行了多少帧
  40.         protected override void OnRenderFrame(FrameEventArgs e)
  41.         {
  42.             Title = $"(Vsync: {VSync}) FPS: {1f / e.Time:0}";
  44.             Color4 backColor;
  45.             backColor.A = 1.0f;
  46.             backColor.R = 0.1f;
  47.             backColor.G = 0.1f;
  48.             backColor.B = 0.3f;
  49.             GL.ClearColor(backColor);
  50.             GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
  52.             SwapBuffers();
  53.         }
  54.     }

四元素的拾取ARGB和RGB的区别

ARGB是Alpha，Red，Green，Blue组成的色彩空间
#FF99CC00 为例，其中，FF 是透明度，99 是红色值， CC 是绿色值， 00 是蓝色值。
ARGB值的选取

eg：#DCDCDC是浅灰色

C#中的调取ARGB
可以直接用

  1. Color4 backColor;
  2. backColor.A = Color4.Gray.A;
  3. backColor.R = Color4.Gray.R;
  4. backColor.G = Color4.Gray.G;
  5. backColor.B = Color4.Gray.B;

一些RGB颜色

  1. <?xml version="1.0" encoding="utf-8"?>  
  2.     <resources>  
  3.         <color name="white">#FFFFFF</color> <!--白色 -->  
  4.         <color name="ivory">#FFFFF0</color> <!--象牙色 -->  
  5.         <color name="lightyellow">#FFFFE0</color> <!--亮黄色 -->  
  6.         <color name="yellow">#FFFF00</color> <!--黄色 -->  
  7.         <color name="snow">#FFFAFA</color> <!--雪白色 -->  
  8.         <color name="floralwhite">#FFFAF0</color> <!--花白色 -->  
  9.         <color name="lemonchiffon">#FFFACD</color> <!--柠檬绸色 -->  
  10.         <color name="cornsilk">#FFF8DC</color> <!--米绸色 -->  
  11.         <color name="seashell">#FFF5EE</color> <!--海贝色 -->  
  12.         <color name="lavenderblush">#FFF0F5</color> <!--淡紫红 -->  
  13.         <color name="papayawhip">#FFEFD5</color> <!--番木色 -->  
  14.         <color name="blanchedalmond">#FFEBCD</color> <!--白杏色 -->  
  15.         <color name="mistyrose">#FFE4E1</color> <!--浅玫瑰色 -->  
  16.         <color name="bisque">#FFE4C4</color> <!--桔黄色 -->  
  17.         <color name="moccasin">#FFE4B5</color> <!--鹿皮色 -->  
  18.         <color name="navajowhite">#FFDEAD</color> <!--纳瓦白 -->  
  19.         <color name="peachpuff">#FFDAB9</color> <!--桃色 -->  
  20.         <color name="gold">#FFD700</color> <!--金色 -->  
  21.         <color name="pink">#FFC0CB</color> <!--粉红色 -->  
  22.         <color name="lightpink">#FFB6C1</color> <!--亮粉红色 -->  
  23.         <color name="orange">#FFA500</color> <!--橙色 -->  
  24.         <color name="lightsalmon">#FFA07A</color> <!--亮肉色 -->  
  25.         <color name="darkorange">#FF8C00</color> <!--暗桔黄色 -->  
  26.         <color name="coral">#FF7F50</color> <!--珊瑚色 -->  
  27.         <color name="hotpink">#FF69B4</color> <!--热粉红色 -->  
  28.         <color name="tomato">#FF6347</color> <!--西红柿色 -->  
  29.         <color name="orangered">#FF4500</color> <!--红橙色 -->  
  30.         <color name="deeppink">#FF1493</color> <!--深粉红色 -->  
  31.         <color name="fuchsia">#FF00FF</color> <!--紫红色 -->  
  32.         <color name="magenta">#FF00FF</color> <!--红紫色 -->  
  33.         <color name="red">#FF0000</color> <!--红色 -->  
  34.         <color name="oldlace">#FDF5E6</color> <!--老花色 -->  
  35.         <color name="lightgoldenrodyellow">#FAFAD2</color> <!--亮金黄色 -->  
  36.         <color name="linen">#FAF0E6</color> <!--亚麻色 -->  
  37.         <color name="antiquewhite">#FAEBD7</color> <!--古董白 -->  
  38.         <color name="salmon">#FA8072</color> <!--鲜肉色 -->  
  39.         <color name="ghostwhite">#F8F8FF</color> <!--幽灵白 -->  
  40.         <color name="mintcream">#F5FFFA</color> <!--薄荷色 -->  
  41.         <color name="whitesmoke">#F5F5F5</color> <!--烟白色 -->  
  42.         <color name="beige">#F5F5DC</color> <!--米色 -->  
  43.         <color name="wheat">#F5DEB3</color> <!--浅黄色 -->  
  44.         <color name="sandybrown">#F4A460</color> <!--沙褐色 -->  
  45.         <color name="azure">#F0FFFF</color> <!--天蓝色 -->  
  46.         <color name="honeydew">#F0FFF0</color> <!--蜜色 -->  
  47.         <color name="aliceblue">#F0F8FF</color> <!--艾利斯兰 -->  
  48.         <color name="khaki">#F0E68C</color> <!--黄褐色 -->  
  49.         <color name="lightcoral">#F08080</color> <!--亮珊瑚色 -->  
  50.         <color name="palegoldenrod">#EEE8AA</color> <!--苍麒麟色 -->  
  51.         <color name="violet">#EE82EE</color> <!--紫罗兰色 -->  
  52.         <color name="darksalmon">#E9967A</color> <!--暗肉色 -->  
  53.         <color name="lavender">#E6E6FA</color> <!--淡紫色 -->  
  54.         <color name="lightcyan">#E0FFFF</color> <!--亮青色 -->  
  55.         <color name="burlywood">#DEB887</color> <!--实木色 -->  
  56.         <color name="plum">#DDA0DD</color> <!--洋李色 -->  
  57.         <color name="gainsboro">#DCDCDC</color> <!--淡灰色 -->  
  58.         <color name="crimson">#DC143C</color> <!--暗深红色 -->  
  59.         <color name="palevioletred">#DB7093</color> <!--苍紫罗兰色 -->  
  60.         <color name="goldenrod">#DAA520</color> <!--金麒麟色 -->  
  61.         <color name="orchid">#DA70D6</color> <!--淡紫色 -->  
  62.         <color name="thistle">#D8BFD8</color> <!--蓟色 -->  
  63.         <color name="lightgray">#D3D3D3</color> <!--亮灰色 -->  
  64.         <color name="lightgrey">#D3D3D3</color> <!--亮灰色 -->  
  65.         <color name="tan">#D2B48C</color> <!--茶色 -->  
  66.         <color name="chocolate">#D2691E</color> <!--巧可力色 -->  
  67.         <color name="peru">#CD853F</color> <!--秘鲁色 -->  
  68.         <color name="indianred">#CD5C5C</color> <!--印第安红 -->  
  69.         <color name="mediumvioletred">#C71585</color> <!--中紫罗兰色 -->  
  70.         <color name="silver">#C0C0C0</color> <!--银色 -->  
  71.         <color name="darkkhaki">#BDB76B</color> <!--暗黄褐色-->  
  72.         <color name="rosybrown">#BC8F8F</color> <!--褐玫瑰红 -->  
  73.         <color name="mediumorchid">#BA55D3</color> <!--中粉紫色 -->  
  74.         <color name="darkgoldenrod">#B8860B</color> <!--暗金黄色 -->  
  75.         <color name="firebrick">#B22222</color> <!--火砖色 -->  
  76.         <color name="powderblue">#B0E0E6</color> <!--粉蓝色 -->  
  77.         <color name="lightsteelblue">#B0C4DE</color> <!--亮钢兰色-->  
  78.         <color name="paleturquoise">#AFEEEE</color> <!--苍宝石绿 -->  
  79.         <color name="greenyellow">#ADFF2F</color> <!--黄绿色 -->  
  80.         <color name="lightblue">#ADD8E6</color> <!--亮蓝色 -->  
  81.         <color name="darkgray">#A9A9A9</color> <!--暗灰色 -->  
  82.         <color name="darkgrey">#A9A9A9</color> <!--暗灰色 -->  
  83.         <color name="brown">#A52A2A</color> <!--褐色 -->  
  84.         <color name="sienna">#A0522D</color> <!--赭色 -->  
  85.         <color name="darkorchid">#9932CC</color> <!--暗紫色 -->  
  86.         <color name="palegreen">#98FB98</color> <!--苍绿色 -->  
  87.         <color name="darkviolet">#9400D3</color> <!--暗紫罗兰色 -->  
  88.         <color name="mediumpurple">#9370DB</color> <!--中紫色 -->  
  89.         <color name="lightgreen">#90EE90</color> <!--亮绿色 -->  
  90.         <color name="darkseagreen">#8FBC8F</color> <!--暗海兰色 -->  
  91.         <color name="saddlebrown">#8B4513</color> <!--重褐色 -->  
  92.         <color name="darkmagenta">#8B008B</color> <!--暗洋红 -->  
  93.         <color name="darkred">#8B0000</color> <!--暗红色 -->  
  94.         <color name="blueviolet">#8A2BE2</color> <!--紫罗兰蓝色 -->  
  95.         <color name="lightskyblue">#87CEFA</color> <!--亮天蓝色 -->  
  96.         <color name="skyblue">#87CEEB</color> <!--天蓝色 -->  
  97.         <color name="gray">#808080</color> <!--灰色 -->  
  98.         <color name="grey">#808080</color> <!--灰色 -->  
  99.         <color name="olive">#808000</color> <!--橄榄色 -->  
  100.         <color name="purple">#800080</color> <!--紫色 -->  
  101.         <color name="maroon">#800000</color> <!--粟色 -->  
  102.         <color name="aquamarine">#7FFFD4</color> <!--碧绿色 -->  
  103.         <color name="chartreuse">#7FFF00</color> <!--黄绿色 -->  
  104.         <color name="lawngreen">#7CFC00</color> <!--草绿色 -->  
  105.         <color name="mediumslateblue">#7B68EE</color> <!--中暗蓝色 -->  
  106.         <color name="lightslategray">#778899</color> <!--亮蓝灰 -->  
  107.         <color name="lightslategrey">#778899</color> <!--亮蓝灰 -->  
  108.         <color name="slategray">#708090</color> <!--灰石色 -->  
  109.         <color name="slategrey">#708090</color> <!--灰石色 -->  
  110.         <color name="olivedrab">#6B8E23</color> <!--深绿褐色 -->  
  111.         <color name="slateblue">#6A5ACD</color> <!--石蓝色 -->  
  112.         <color name="dimgray">#696969</color> <!--暗灰色 -->  
  113.         <color name="dimgrey">#696969</color> <!--暗灰色 -->  
  114.         <color name="mediumaquamarine">#66CDAA</color> <!--中绿色 -->  
  115.         <color name="cornflowerblue">#6495ED</color> <!--菊兰色 -->  
  116.         <color name="cadetblue">#5F9EA0</color> <!--军兰色 -->  
  117.         <color name="darkolivegreen">#556B2F</color> <!--暗橄榄绿-->  
  118.         <color name="indigo">#4B0082</color> <!--靛青色 -->  
  119.         <color name="mediumturquoise">#48D1CC</color> <!--中绿宝石 -->  
  120.         <color name="darkslateblue">#483D8B</color> <!--暗灰蓝色 -->  
  121.         <color name="steelblue">#4682B4</color> <!--钢兰色 -->  
  122.         <color name="royalblue">#4169E1</color> <!--皇家蓝 -->  
  123.         <color name="turquoise">#40E0D0</color> <!--青绿色 -->  
  124.         <color name="mediumseagreen">#3CB371</color> <!--中海蓝 -->  
  125.         <color name="limegreen">#32CD32</color> <!--橙绿色 -->  
  126.         <color name="darkslategray">#2F4F4F</color> <!--暗瓦灰色 -->  
  127.         <color name="darkslategrey">#2F4F4F</color> <!--暗瓦灰色 -->  
  128.         <color name="seagreen">#2E8B57</color> <!--海绿色 -->  
  129.         <color name="forestgreen">#228B22</color> <!--森林绿 -->  
  130.         <color name="lightseagreen">#20B2AA</color> <!--亮海蓝色 -->  
  131.         <color name="dodgerblue">#1E90FF</color> <!--闪兰色 -->  
  132.         <color name="midnightblue">#191970</color> <!--中灰兰色 -->  
  133.         <color name="aqua">#00FFFF</color> <!--浅绿色 -->  
  134.         <color name="cyan">#00FFFF</color> <!--青色 -->  
  135.         <color name="springgreen">#00FF7F</color> <!--春绿色 -->  
  136.         <color name="lime">#00FF00</color> <!--酸橙色 -->  
  137.         <color name="mediumspringgreen">#00FA9A</color> <!--中春绿色 -->  
  138.         <color name="darkturquoise">#00CED1</color> <!--暗宝石绿 -->  
  139.         <color name="deepskyblue">#00BFFF</color> <!--深天蓝色 -->  
  140.         <color name="darkcyan">#008B8B</color> <!--暗青色 -->  
  141.         <color name="teal">#008080</color> <!--水鸭色 -->  
  142.         <color name="green">#008000</color> <!--绿色 -->  
  143.         <color name="darkgreen">#006400</color> <!--暗绿色 -->  
  144.         <color name="blue">#0000FF</color> <!--蓝色 -->  
  145.         <color name="mediumblue">#0000CD</color> <!--中兰色 -->  
  146.         <color name="darkblue">#00008B</color> <!--暗蓝色 -->  
  147.         <color name="navy">#000080</color> <!--海军色 -->  
  148.         <color name="black">#000000</color> <!--黑色 -->  
  150.     </resources>