BabylonJS - 漫反射

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漫反射屬性將顏色散佈到與其關聯的網格的各個部分。

示例

請考慮以下示例以瞭解其工作原理。

語法

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

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.diffuseColor = new BABYLON.Color3(1.0, 0.7, 0.3); // color is applied to he box
            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

輸出

Standard Material Diffuse Property

使用標準材質，您可以將顏色應用到與其關聯的形狀。

帶紋理的演示

紋理是使用影像建立的。

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

輸出

以上程式碼行生成以下輸出 -

Standard Material With Texture

在此演示中，我們使用了名為 nature.jpg 的影像。這些影像儲存在本地 images/ 資料夾中，並在下面提供參考。您可以下載任何您選擇的影像並在演示連結中使用。

我們為該盒子使用了以下影像 - images/nature.jpg

Standard Material With Texture1

使用偏移的漫反射

現在讓我們看看如何使用偏移進行漫反射。

語法

materialforbox.diffuseTexture.uOffset = 0.5;
materialforbox.diffuseTexture.vOffset = 0.5;

U 和 v 指的是 x & y 軸 -

<!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.diffuseTexture = new BABYLON.Texture("images/nature.jpg", scene);

            materialforbox.diffuseTexture.uOffset = 0.5;
            materialforbox.diffuseTexture.vOffset = 0.5;

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

輸出

以上程式碼行生成以下輸出 -

Standard Material Diffuse using offsets

在此演示中，我們使用了名為 nature.jpg 的影像。這些影像儲存在本地 images/ 資料夾中。在這裡，我們使用了與上一個演示中相同的影像。該影像已在上面貼上以供參考。您可以下載任何您選擇的影像並在演示連結中使用。

帶縮放的漫反射

現在讓我們看看如何使用縮放進行漫反射。

語法

materialforbox.diffuseTexture.uScale = 5.0;
materialforbox.diffuseTexture.vScale = 5.0;

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.diffuseTexture = new BABYLON.Texture("images/nature.jpg", scene);
            materialforbox.diffuseTexture.uOffset = 0.5;
            materialforbox.diffuseTexture.vOffset = 0.5;
            materialforbox.diffuseTexture.uScale = 5.0;
            materialforbox.diffuseTexture.vScale = 5.0;
            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

輸出

以上程式碼行生成以下輸出 -

Standard Material Diffuse with scaling

在此演示中，我們使用了名為 nature.jpg 的影像。這些影像儲存在本地 images/ 資料夾中。我們使用了與上一個演示中相同的影像。該影像已在上面貼上以供參考。您可以下載任何您選擇的影像並在演示連結中使用。

babylonjs_materials.htm
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