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Unity打包WebGL后 自适应网页分辨率_unity 2021webgl 窗口化自适应打包

作者：一键难忘520 | 2024-07-23 13:16:41

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unity 2021webgl 窗口化自适应打包

使用版本：Unity2022.3.14

效果： 可自适应 ，留白为黑色

视频效果：

2024-03-21-16-46-25-CSDN直播

坑1

top left 无效，无法居中显示游戏内容

原因; position 不能是 static 改为absolute

  1. <canvas id="unity-canvas" 
  2. style=" position: absolute; width: 1920px; height: 1080px;">
  3. </canvas>

坑2

留白改为黑色

  1.  
  2.   <style>
  3.     html
  4.     {
  5.       background-color: black;
  6.     }
  7.   </style>

修改步骤

1 自适应代码块（'unity-canvas'拼写需要和上发一样 不然无效）

  1.  <script>
  2.       var unityContainer = document.getElementById('unity-canvas');
  3.       function unityContainerResize()
  4.       {
  5.         var w = window.innerWidth || document.body.clientWidth,
  6.                 h = window.innerHeight || document.body.clientHeight,
  7.                 ratio = 16 / 9,
  8.                 r = w/h;
  9.         var setW, setH, setTop, setLeft;
  10.         if (r >= ratio) { // 高度撑满
  11.           setW = h * ratio;
  12.           setLeft = (w - setW) / 2;
  13.         } else { // 宽度撑满
  14.           setH = w / ratio;
  15.           setTop = (h - setH) / 2;
  16.         }
  17.         
  18.  
  19.         unityContainer.style.width = (setW || w) + 'px';
  20.         unityContainer.style.height = (setH || h) + 'px';
  21.         unityContainer.style.top = (setTop || 0) + 'px';
  22.         unityContainer.style.left = (setLeft || 0) + 'px';
  23.  
  24.       }
  25.       window.addEventListener('resize', unityContainerResize)
  26.       unityContainerResize()
  27.     </script>

2 修改了positon属性为absolute

  1. <canvas id="unity-canvas" 
  2. style=" position: absolute; width: 1920px; height: 1080px;">
  3. </canvas>

3 修改默认 留白为留黑

  1. <style>
  2.     html
  3.     {
  4.       background-color: black;
  5.     }
  6.   </style>

完整代码

在unity打包后的文件夹下面名字是index.html

按照上方修改步骤进行

  1. <!DOCTYPE html>
  2. <html lang="en-us">
  3.   <head>
  4.     <meta charset="utf-8">
  5.     <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  6.     <title>Unity WebGL Player | TestWebGL</title>
  7.     <link rel="shortcut icon" href="TemplateData/favicon.ico">
  8.     <link rel="stylesheet" href="TemplateData/style.css">
  9.     <link rel="manifest" href="manifest.webmanifest">
  10.   </head>
  11.   <body>
  12.     <div id="unity-container">
  13.       <canvas id="unity-canvas" style=" position: absolute; width: 1920px; height: 1080px;"></canvas>
  14.       <div id="unity-loading-bar">
  15.         <div id="unity-logo"></div>
  16.         <div id="unity-progress-bar-empty">
  17.           <div id="unity-progress-bar-full"></div>
  18.         </div>
  19.       </div>
  20.       <div id="unity-warning"> </div>
  21.     </div>
  22.     
  23.     <script>
  24.  
  25.       window.addEventListener("load", function () {
  26.         if ("serviceWorker" in navigator) {
  27.           navigator.serviceWorker.register("ServiceWorker.js");
  28.         }
  29.       });
  30.  
  31.       var container = document.querySelector("#unity-container");
  32.       var canvas = document.querySelector("#unity-canvas");
  33.       var loadingBar = document.querySelector("#unity-loading-bar");
  34.       var progressBarFull = document.querySelector("#unity-progress-bar-full");
  35.       var warningBanner = document.querySelector("#unity-warning");
  36.  
  37.       // Shows a temporary message banner/ribbon for a few seconds, or
  38.       // a permanent error message on top of the canvas if type=='error'.
  39.       // If type=='warning', a yellow highlight color is used.
  40.       // Modify or remove this function to customize the visually presented
  41.       // way that non-critical warnings and error messages are presented to the
  42.       // user.
  43.       function unityShowBanner(msg, type) {
  44.         function updateBannerVisibility() {
  45.           warningBanner.style.display = warningBanner.children.length ? 'block' : 'none';
  46.         }
  47.  
  48.         var div = document.createElement('div');
  49.         div.innerHTML = msg;
  50.         warningBanner.appendChild(div);
  51.         if (type == 'error') div.style = 'background: red; padding: 10px;';
  52.         else {
  53.           if (type == 'warning') div.style = 'background: yellow; padding: 10px;';
  54.           setTimeout(function () {
  55.             warningBanner.removeChild(div);
  56.             updateBannerVisibility();
  57.           }, 5000);
  58.         }
  59.         updateBannerVisibility();
  60.       }
  61.  
  62.       var buildUrl = "Build";
  63.       var loaderUrl = buildUrl + "/TestWebGL.loader.js";
  64.       var config = {
  65.         dataUrl: buildUrl + "/TestWebGL.data",
  66.         frameworkUrl: buildUrl + "/TestWebGL.framework.js",
  67.         codeUrl: buildUrl + "/TestWebGL.wasm",
  68.         streamingAssetsUrl: "StreamingAssets",
  69.         companyName: "DefaultCompany",
  70.         productName: "TestWebGL",
  71.         productVersion: "0.1",
  72.         showBanner: unityShowBanner,
  73.       };
  74.  
  75.       // By default Unity keeps WebGL canvas render target size matched with
  76.       // the DOM size of the canvas element (scaled by window.devicePixelRatio)
  77.       // Set this to false if you want to decouple this synchronization from
  78.       // happening inside the engine, and you would instead like to size up
  79.       // the canvas DOM size and WebGL render target sizes yourself.
  80.       // config.matchWebGLToCanvasSize = false;
  81.  
  82.       if (/iPhone|iPad|iPod|Android/i.test(navigator.userAgent)) {
  83.         // Mobile device style: fill the whole browser client area with the game canvas:
  84.         var meta = document.createElement('meta');
  85.         meta.name = 'viewport';
  86.         meta.content = 'width=device-width, height=device-height, initial-scale=1.0, user-scalable=no, shrink-to-fit=yes';
  87.         document.getElementsByTagName('head')[0].appendChild(meta);
  88.       }
  89.  
  90.       loadingBar.style.display = "block";
  91.  
  92.       var script = document.createElement("script");
  93.       script.src = loaderUrl;
  94.       script.onload = () => {
  95.         createUnityInstance(canvas, config, (progress) => {
  96.           progressBarFull.style.width = 100 * progress + "%";
  97.         }).then((unityInstance) => {
  98.           loadingBar.style.display = "none";
  99.         }).catch((message) => {
  100.           alert(message);
  101.         });
  102.       };
  103.       document.body.appendChild(script);
  104.     </script>
  105.  
  106.     
  107.     <script>
  108.       // 自适应代码块
  109.       var unityContainer = document.getElementById('unity-canvas');
  110.       function unityContainerResize()
  111.       {
  112.         var w = window.innerWidth || document.body.clientWidth,
  113.                 h = window.innerHeight || document.body.clientHeight,
  114.                 ratio = 16 / 9,
  115.                 r = w/h;
  116.         var setW, setH, setTop, setLeft;
  117.         if (r >= ratio) { // 高度撑满
  118.           setW = h * ratio;
  119.           setLeft = (w - setW) / 2;
  120.         } else { // 宽度撑满
  121.           setH = w / ratio;
  122.           setTop = (h - setH) / 2;
  123.         }
  124.         
  125.  
  126.         unityContainer.style.width = (setW || w) + 'px';
  127.         unityContainer.style.height = (setH || h) + 'px';
  128.         unityContainer.style.top = (setTop || 0) + 'px';
  129.         unityContainer.style.left = (setLeft || 0) + 'px';
  130.  
  131.       }
  132.       window.addEventListener('resize', unityContainerResize)
  133.       unityContainerResize()
  134.     </script>
  135.   
  136.   </body>
  137.  
  138.   <style>
  139.     html
  140.     {
  141.       background-color: black;
  142.     }
  143.   </style>
  144. </html>

声明

代码借鉴的不同帖子的代码非完全原创
仅仅作为记录！

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