babylonjs limitations

HTML

<script src="https://rawgithub.com/BabylonJS/Babylon.js/v1.14/babylon.1.14.js"></script>
<div>
    <canvas id="renderCanvas"></canvas>
</div>

CSS

html, body, div, canvas {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

JavaScript

var canvas = document.getElementById("renderCanvas");
var engine = new BABYLON.Engine(canvas, true);
var scene = new BABYLON.Scene(engine);

var box = BABYLON.Mesh.CreateBox("box", 1, scene);
box.material = new BABYLON.StandardMaterial("boxMat", scene);
box.material.emissiveColor = new BABYLON.Color3(Math.random(), Math.random(), Math.random());

//box.material.alpha = 0.5;


var camera = new BABYLON.ArcRotateCamera("camera", 0, 0, 5, new BABYLON.Vector3.Zero(), scene);
scene.activeCamera = camera;
camera.attachControl(canvas);

engine.runRenderLoop(function () {
    scene.render();
});