BabylonJS - 高光

當光線照射到 Specular（高光）屬性時，該屬性會反射出像鏡子一樣的效果。Specular（高光）提供了兩個屬性：specularColor 和 specularTexture。顏色和紋理在光線照射的方向上顯示。它就像網格上的聚光燈。可以在下面的示例中看到相同的效果。

高光顏色的語法

materialforbox.specularColor = new BABYLON.Color3(1.0, 0.2, 0.7);

高光紋理的語法

materialforbox.specularTexture = new BABYLON.Texture("grass.png", scene);

高光顏色的示例

<!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);
            
            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.specularColor = new BABYLON.Color3(1, 0.8, 0.8);	
            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

高光顏色的輸出

以上程式碼會生成以下輸出 -

高光紋理的示例

<!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);
            
            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.specularTexture = new BABYLON.Texture("images/rainbow.png", scene);
            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

高光紋理的輸出

以上程式碼會生成以下輸出 -

在此示例中，我們使用了名為 rainbow.png 的影像。這些影像儲存在 images/ 資料夾中，並如下方貼上以供參考。你可以下載你選擇的任何影像，然後將其用於示例連結。

用於盒子的紋理 - images/rainbow.png

babylonjs_materials.htm

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