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example25.html
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example25.html
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<!DOCTYPE html>
<html>
<head>
<title>Example 25 - Basic 3D geometries - Polyhedron</title>
<style>
body{
margin: 0;
overflow: hidden;
}
#stats { /* Align stats top-left */
position: absolute;
left: 0px;
top: 0px;
}
</style>
</head>
<body>
<!-- JavaScript libraries -->
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/three.js/r67/three.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/stats.js/r11/Stats.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.5/dat.gui.min.js"></script>
<script src="assets/libs/TrackballControls.js"></script>
<!-- Javascript code that runs our Three.js examples -->
<script>
// once everything is loaded, we run our Three.js stuff.
$(function () {
var stats = initStats();
// create a scene, that will hold all our elements such as objects, cameras and lights.
var scene = new THREE.Scene();
// create a camera, which defines where we're looking at.
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
// create a render and set the size
var webGLRenderer = new THREE.WebGLRenderer();
webGLRenderer.setClearColor(new THREE.Color(0xEEEEEE, 1.0));
webGLRenderer.setSize(window.innerWidth, window.innerHeight);
webGLRenderer.shadowMapEnabled = true;
var polyhedron = createMesh(new THREE.IcosahedronGeometry(10, 0));
// add the sphere to the scene
scene.add(polyhedron);
// position and point the camera to the center of the scene
camera.position.set(-30,40,50);
camera.lookAt(new THREE.Vector3(10, 0, 0));
// add the output of the renderer to the html element
$('body').append(webGLRenderer.domElement);
// call the render function
var step = 0;
// setup the control gui
var controls = new function () {
// we need the first child, since it's a multimaterial
this.radius = 10;
this.detail = 0;
this.type = 'Icosahedron';
this.redraw = function () {
// remove the old plane
scene.remove(polyhedron);
// create a new one
switch (controls.type) {
case 'Icosahedron':
polyhedron = createMesh(new THREE.IcosahedronGeometry(controls.radius, controls.detail));
break;
case 'Tetrahedron':
polyhedron = createMesh(new THREE.TetrahedronGeometry(controls.radius, controls.detail));
break;
case 'Octahedron':
polyhedron = createMesh(new THREE.OctahedronGeometry(controls.radius, controls.detail));
break;
}
// add it to the scene.
scene.add(polyhedron);
};
}
var gui = new dat.GUI();
gui.add(controls, 'radius', 0, 40).step(1).onChange(controls.redraw);
gui.add(controls, 'detail', 0, 3).step(1).onChange(controls.redraw);
gui.add(controls, 'type', ['Icosahedron', 'Tetrahedron', 'Octahedron']).onChange(controls.redraw);
render();
function createMesh(geom) {
// assign two materials
var meshMaterial = new THREE.MeshNormalMaterial();
meshMaterial.side = THREE.DoubleSide;
var wireFrameMat = new THREE.MeshBasicMaterial();
wireFrameMat.wireframe = true;
// create a multimaterial
var mesh = THREE.SceneUtils.createMultiMaterialObject(geom, [meshMaterial, wireFrameMat]);
return mesh;
}
function render() {
stats.update();
polyhedron.rotation.y = step += 0.01;
// render using requestAnimationFrame
requestAnimationFrame(render);
webGLRenderer.render(scene, camera);
}
function initStats() {
var stats = new Stats();
stats.setMode(0); // 0: fps, 1: ms
$('body').append(stats.domElement);
return stats;
}
});
</script>
</body>
</html>