BabylonJS - 自发光

你可以通过此属性应用颜色和纹理。通过自发光，它将辐射所使用的纹理或颜色。

语法

考虑与 Emissive 属性相关的以下语法。

materialforbox.emissiveColor = new BABYLON.Color3(1, .2, .7);
materialforbox.emissiveTexture = new BABYLON.Texture("images/nature.jpg", scene);

演示

<!doctype html>
<html>
   <head>
      <meta charset = "utf-8">
      <title>BabylonJs - Basic Element-Creating Scene</title>
      <script src = "babylon.js"></script>
      <style>
         canvas {width: 100%; height: 100%;}
      </style>
   </head>

   <body>
      <canvas id = "renderCanvas"></canvas>
      <script type = "text/javascript">
         var canvas = document.getElementById("renderCanvas");
         var engine = new BABYLON.Engine(canvas, true);
         var createScene  = function() {
            var scene = new BABYLON.Scene(engine);
            scene.clearColor = new BABYLON.Color3(0, 1, 0);
            
            var camera = new BABYLON.ArcRotateCamera("Camera", 1, 0.8, 10, new BABYLON.Vector3(0, 0, 0), scene);
            camera.attachControl(canvas, true);
            
            var light = new BABYLON.HemisphericLight("light1", new BABYLON.Vector3(0, 1, 0), scene);
            light.intensity = 0.7;	
            
            var materialforbox = new BABYLON.StandardMaterial("texture1", scene);
            
            var box = BABYLON.Mesh.CreateBox("box", '3', scene);	
            box.material  = materialforbox;

            materialforbox.emissiveColor = new BABYLON.Color3(0.5, .2, .2);

            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

输出

以上代码行生成以下输出 −

带有纹理的自发光

现在让我们看看自发光如何和纹理一起使用。

演示

<!doctype html>
<html>
   <head>
      <meta charset = "utf-8">
      <title>BabylonJs - Basic Element-Creating Scene</title>
      <script src = "babylon.js"></script>
      <style>
         canvas {width: 100%; height: 100%;}
      </style>
   </head>

   <body>
      <canvas id = "renderCanvas"></canvas>
      <script type = "text/javascript">
         var canvas = document.getElementById("renderCanvas");
         var engine = new BABYLON.Engine(canvas, true);
         var createScene  = function() {
            var scene = new BABYLON.Scene(engine);
            scene.clearColor = new BABYLON.Color3(0, 1, 0);
            
            var camera = new BABYLON.ArcRotateCamera("Camera", 1, 0.8, 10, new BABYLON.Vector3(0, 0, 0), scene);
            camera.attachControl(canvas, true);
            
            var light = new BABYLON.HemisphericLight("light1", new BABYLON.Vector3(0, 1, 0), scene);
            light.intensity = 0.7;	
            
            var materialforbox = new BABYLON.StandardMaterial("texture1", scene);
            
            var box = BABYLON.Mesh.CreateBox("box", '3', scene);	
            box.material  = materialforbox;
            materialforbox.emissiveTexture = new BABYLON.Texture("images/nature.jpg", scene);

            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

输出

以上代码行生成以下输出 −

如果图像文件不正确，它会使用默认纹理，如下所示 −

在此演示中，我们使用了一个名为 nature.jpg 的图像。图像存储在本地 images/ 文件夹中。你可以在演示链接中下载你选择的任何图像并使用。

babylonjs_materials.htm

打印页面

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