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Polyhedra-Touch3.html
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<!doctype html>
<html lang="en">
<head>
<title>Polyhedra (Three.js)</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link rel=stylesheet href="css/base.css"/>
</head>
<body>
<script src="js/Three58.js"></script>
<script src="js/Detector.js"></script>
<script src="js/TrackballControls.js"></script>
<script src="js/polyhedra.js"></script>
<div id="ThreeJS" style="position: absolute; left:0px; top:0px"></div>
<script>
/*
Three.js "tutorials by example"
Author: Lee Stemkoski
Date: July 2013 (three.js v59dev)
*/
// MAIN
// standard global variables
var container, scene, camera, renderer, controls, stats;
// var clock = new THREE.Clock();
// custom global variables
var mesh;
init();
animate();
// FUNCTIONS
function init()
{
// SCENE
scene = new THREE.Scene();
// CAMERA
var SCREEN_WIDTH = window.innerWidth, SCREEN_HEIGHT = window.innerHeight;
var VIEW_ANGLE = 45, ASPECT = SCREEN_WIDTH / SCREEN_HEIGHT, NEAR = 0.1, FAR = 20000;
camera = new THREE.PerspectiveCamera( VIEW_ANGLE, ASPECT, NEAR, FAR);
scene.add(camera);
camera.position.set(0,150,400);
camera.lookAt(scene.position);
// RENDERER
if ( Detector.webgl )
renderer = new THREE.WebGLRenderer( {antialias:true} );
else
renderer = new THREE.CanvasRenderer();
renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
container = document.getElementById( 'ThreeJS' );
container.appendChild( renderer.domElement );
// CONTROLS
controls = new THREE.TrackballControls( camera, renderer.domElement );
controls.noPan = true;
// LIGHT
var light = new THREE.PointLight(0xffffff);
// light.position.set(100,250,100);
light.position = camera.position;
scene.add(light);
var light = new THREE.PointLight(0x888888);
light.position.set(-100,-250,-100);
scene.add(light);
// SKYBOX
var skyBoxGeometry = new THREE.CubeGeometry( 10000, 10000, 10000 );
var skyBoxMaterial = new THREE.MeshBasicMaterial( { color: 0xccccff, side: THREE.BackSide } );
var skyBox = new THREE.Mesh( skyBoxGeometry, skyBoxMaterial );
scene.add(skyBox);
////////////
// CUSTOM //
////////////
this.polyhedronMesh = polyhedronDataToMesh( POLYHEDRA.TruncatedIcosidodecahedron );
polyhedronMesh.scale.multiplyScalar(0.90);
scene.add(polyhedronMesh);
// SPRITE GUI?
var ballTexture = THREE.ImageUtils.loadTexture( 'images/redball.png' );
var ballMaterial = new THREE.SpriteMaterial( { color: 0x0000ff, map: ballTexture, useScreenCoordinates: true, alignment: THREE.SpriteAlignment.bottomLeft } );
var sprite = new THREE.Sprite( ballMaterial );
sprite.position.set( 5, window.innerHeight - 5, 0 );
sprite.scale.set( 128, 128, 1.0 ); // imageWidth, imageHeight
scene.add( sprite );
} // end of function init()
var faces;
function displayMesh(mesh)
{
scene.remove(polyhedronMesh);
polyhedronMesh = mesh;
scene.add(polyhedronMesh);
}
function polyhedronDataToMesh(data)
{
var polyhedron = new THREE.Object3D();
//var chromeTexture = new THREE.ImageUtils.loadTexture( 'images/Chrome.png' );
//var chromeMaterial = new THREE.MeshBasicMaterial( { color:0x999900, map: chromeTexture} );
// convert vertex data to THREE.js vectors
var vertex = []
for (var i = 0; i < data.vertex.length; i++)
vertex.push( new THREE.Vector3( data.vertex[i][0], data.vertex[i][1], data.vertex[i][2] ).multiplyScalar(100) );
// render vertices as spheres
var vertexGeometry = new THREE.SphereGeometry( 6, 32, 16 );
var vertexMaterial = new THREE.MeshLambertMaterial( { color: 0x222244 } );
var mesh = new THREE.Mesh( vertexGeometry, vertexMaterial );
var vertexAmalgam = new THREE.Geometry();
for (var i = 0; i < data.vertex.length; i++)
{
var vMesh = mesh.clone();
vMesh.position = vertex[i];
THREE.GeometryUtils.merge( vertexAmalgam, vMesh );
// polyhedron.add(vMesh);
}
var vertexMesh = new THREE.Mesh( vertexAmalgam, vertexMaterial );
polyhedron.add( vertexMesh );
// convert edge data to cylinders
var edgeMaterial = new THREE.MeshLambertMaterial( {color: 0x666666} );
var edgeAmalgam = new THREE.Geometry();
for (var i = 0; i < data.edge.length; i++)
{
var index0 = data.edge[i][0];
var index1 = data.edge[i][1];
var eMesh = cylinderMesh( vertex[index0], vertex[index1], edgeMaterial );
THREE.GeometryUtils.merge( edgeAmalgam, eMesh );
// polyhedron.add(eMesh);
//var outline = eMesh.clone();
//outline.setMaterial( new THREE.MeshBasicMaterial({color:0x000000, side:THREE.BackSide}) );
//outline.scale.x = outline.scale.z = 1.5;
//scene.add(outline);
}
var edgeMesh = new THREE.Mesh( edgeAmalgam, edgeMaterial );
polyhedron.add( edgeMesh );
// convert face data to a single (triangulated) geometry
var faceMaterial = new THREE.MeshBasicMaterial( { color: 0xffffff, vertexColors: THREE.FaceColors }); //, side: THREE.DoubleSide transparent:true, opacity:0.8 } );
var faceColors =
{
// cc0000 663300 cccc00 00cc00 0000cc 660066 brown-663300
3: new THREE.Color( 0xcc0000 ),
4: new THREE.Color( 0x00cc00 ),
5: new THREE.Color( 0x0000cc ),
6: new THREE.Color( 0xcccc00 ),
7: new THREE.Color( 0x999999 ),
8: new THREE.Color( 0x990099 ),
9: new THREE.Color( 0xff6600 ),
10: new THREE.Color( 0x6666ff )
};
var geometry = new THREE.Geometry();
geometry.vertices = vertex;
var faceIndex = 0;
for (var faceNum = 0; faceNum < data.face.length; faceNum++)
{
for (var i = 0; i < data.face[faceNum].length - 2; i++)
{
geometry.faces[faceIndex] = new THREE.Face3( data.face[faceNum][0], data.face[faceNum][i+1], data.face[faceNum][i+2] );
geometry.faces[faceIndex].color = faceColors[data.face[faceNum].length];
faceIndex++;
}
}
geometry.computeFaceNormals();
geometry.computeVertexNormals();
faces = new THREE.Mesh(geometry, faceMaterial);
polyhedron.add(faces);
return polyhedron;
}
function cylinderMesh(point1, point2, material)
{
var direction = new THREE.Vector3().subVectors(point2, point1);
var arrow = new THREE.ArrowHelper(direction.clone().normalize(), point1);
var rotation = new THREE.Vector3().setEulerFromQuaternion(arrow.quaternion);
var edgeGeometry = new THREE.CylinderGeometry( 2, 2, direction.length(), 16, 16 );
var edge = new THREE.Mesh(edgeGeometry, material);
edge.position = new THREE.Vector3().addVectors(point1, direction.multiplyScalar(0.5));
edge.rotation = rotation;
return edge;
// the result should align with:
// scene.add( new THREE.ArrowHelper( direction.clone().normalize(), point1, direction.length()) );
}
function animate()
{
requestAnimationFrame( animate );
render();
update();
}
function update()
{
if (camera.position.length() < 150) //console.log(1234);
camera.position.setLength(150);
if (camera.position.length() > 400)
camera.position.setLength(400);
controls.update();
}
function render()
{
renderer.render( scene, camera );
}
</script>
<!-- override dat.gui styles -->
<style>.dg .property-name { width: 95% }</style>
</body>
</html>