BabylonJS - Mirror and Bump Texture

With mirror texture, you get mirror like reflection of the meshes created.

Syntax for Mirror Texture

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);

Bump texture creates bump and wrinkles on the surface of the meshes the material is attached to.

Syntax for Bump Texture

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

Demo

<!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>

Output

The above line of code generates the following output −

Advanced Texture

In this demo, we have used an image called btexture1.jpg. The images are stored in the images/ folder locally and are also pasted below for reference. You can download any image of your choice and use in the demo link.

images/btexture1.jpg

Following is the image used for bump structure −

Btexture1

Explanation

First, we will create a standard material and to that we will apply bumptexture as follows −

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

Create a standard material and apply mirror texture to it as follows −

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

For the same standard material, create a mirror plane and add the meshes to it which you need to see through the mirror as follows −

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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