BabylonJS - 映象紋理凹凸紋理

使用映象紋理，可獲得所建立蒙皮的映象反射。

映象紋理語法

mirrorMaterial.reflectionTexture = new BABYLON.MirrorTexture("mirror", 512, scene, true); //Create a mirror texture
mirrorMaterial.reflectionTexture.mirrorPlane = new BABYLON.Plane(0, -1.0, 0, -10.0);

凹凸紋理會在附加材質的蒙皮表面建立凹凸和皺紋。

凹凸紋理語法

bumpMaterial.bumpTexture = new BABYLON.Texture("images/btexture1.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, 0, 1);
            
            var light = new BABYLON.PointLight("Omni", new BABYLON.Vector3(10, 10, 50), scene);
            
            var light2 = new BABYLON.PointLight("Omni", new BABYLON.Vector3(10, 10, -20), scene);
            
            var camera = new BABYLON.ArcRotateCamera("Camera", -Math.PI/2, Math.PI/4, 25, BABYLON.Vector3.Zero(), scene);
            camera.attachControl(canvas, true);

            var sphere1 = BABYLON.Mesh.CreateSphere("Sphere1", 16.0, 10.0, scene);
            var box1 = BABYLON.Mesh.CreateBox("box", 5.0, scene);
            
            var sphere3 = BABYLON.Mesh.CreateSphere("Sphere3", 16.0, 10.0, scene);
            var box2 = BABYLON.Mesh.CreateBox("box1", 3.0, scene);

            sphere1.position.x = -20;
            box1.position.x = 0;
            sphere3.position.x = 20;
            box2.position.z = 10;

            // Mirror
            var plane = BABYLON.Mesh.CreatePlane("plan", 70, scene);
            plane.position.y = -10;
            plane.rotation = new BABYLON.Vector3(Math.PI / 2, 0, 0);

            var bumpMaterial = new BABYLON.StandardMaterial("texture1", scene);
            bumpMaterial.diffuseColor = new BABYLON.Color3(0, 0, 1);//Blue
            bumpMaterial.bumpTexture = new BABYLON.Texture("images/btexture1.jpg", scene);

            var simpleMaterial = new BABYLON.StandardMaterial("texture2", scene);
            simpleMaterial.diffuseColor = new BABYLON.Color3(1, 0, 0);//Red

            var textMat = new BABYLON.StandardMaterial("texture3", scene);
            textMat.diffuseTexture = new BABYLON.Texture("images/btexture1.jpg", scene);

            // Multimaterial
            var multimat = new BABYLON.MultiMaterial("multi", scene);
            multimat.subMaterials.push(simpleMaterial);
            multimat.subMaterials.push(bumpMaterial);
            multimat.subMaterials.push(textMat);

            //Creation of a mirror material
            var mirrorMaterial = new BABYLON.StandardMaterial("texture4", scene);
            
            mirrorMaterial.diffuseColor = new BABYLON.Color3(0.4, 0.4, 0.4);
           
            mirrorMaterial.reflectionTexture = new BABYLON.MirrorTexture("mirror", 512, scene, true); //Create a mirror texture
            
            mirrorMaterial.reflectionTexture.mirrorPlane = new BABYLON.Plane(0, -1.0, 0, -10.0);
            
            mirrorMaterial.reflectionTexture.renderList = [sphere1, box1, sphere3, box2];
            
            mirrorMaterial.reflectionTexture.level = 0.4;//Select the level (0.0 > 1.0) of the reflection

            box1.subMeshes = [];
            var verticesCount = box1.getTotalVertices();
            box1.subMeshes.push(new BABYLON.SubMesh(0, 0, verticesCount, 0, 6, box1));	
            box1.subMeshes.push(new BABYLON.SubMesh(1, 1, verticesCount, 6, 6, box1));	
            box1.subMeshes.push(new BABYLON.SubMesh(2, 2, verticesCount, 12, 6, box1));	
            box1.subMeshes.push(new BABYLON.SubMesh(3, 3, verticesCount, 18, 6, box1));	
            box1.subMeshes.push(new BABYLON.SubMesh(4, 4, verticesCount, 24, 6, box1));	
            box1.subMeshes.push(new BABYLON.SubMesh(5, 5, verticesCount, 30, 6, box1));				
            
            plane.material = mirrorMaterial;
            sphere1.material = bumpMaterial;
            sphere3.material = simpleMaterial;
            box1.material = multimat;//simpleMaterial;		
            return scene;
         };
         var scene = createScene();
         engine.runRenderLoop(function() {
            scene.render();
         });
      </script>
   </body>
</html>

輸出

以下程式碼行會生成以下輸出 −

在該演示中，我們使用了名為 btexture1.jpg 的影像。這些影像儲存在本地 images/ 資料夾中，為方便參考也貼上在下方。你可以下載任何你喜歡的影像，然後在演示連結中使用。

images/btexture1.jpg

以下為用於凹凸結構的影像 −

說明

首先，我們將建立一個標準材質，並以如下方式應用凹凸紋理 −

bumpMaterial.bumpTexture = new BABYLON.Texture("images/btexture1.jpg", scene);

建立一個標準材質，並以如下方式應用映象紋理 −

mirrorMaterial.reflectionTexture = new BABYLON.MirrorTexture("mirror", 512, scene, true); //Create a mirror texture

對於相同的標準材質，建立一個映象平面，並以如下方式新增需要透過映象觀看的蒙皮 −

mirrorMaterial.reflectionTexture.mirrorPlane = new BABYLON.Plane(0, -1.0, 0, -10.0);
mirrorMaterial.reflectionTexture.renderList = [sphere1, box1, sphere3, box2];
mirrorMaterial.reflectionTexture.level = 0.4;//Select the level (0.0 > 1.0) of the reflection

babylonjs_mesh.htm

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