04-geometry.html
<!DOCTYPE html>
<html>
<head>
<title>three.js webgl - geometry</title>
<meta charset="utf-8">
<style>
body {
background-color: #ffffff;
margin: 0;
overflow: hidden;
}
</style>
<script src="../frameworks/three.min.js"></script>
<script>
var camera, scene, renderer;
var geometry, material, mesh;
var clock;
function init() {
renderer = new THREE.WebGLRenderer();
renderer.setClearColor(0xffffff,1);
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 100 );
camera.position.z = 3;
scene = new THREE.Scene();
var geometry = new THREE.Geometry();
geometry.vertices.push(
new THREE.Vector3( -1, 1, 0 ),
new THREE.Vector3( -1, -1, 0 ),
new THREE.Vector3( 1, -1, 0 )
);
geometry.faces.push( new THREE.Face3( 0, 1, 2 ) );
material = new THREE.MeshBasicMaterial({color: 0x000000});
mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
addVertices(mesh);
clock = new THREE.Clock();
window.addEventListener( 'resize', onWindowResize, false );
}
function animate() {
requestAnimationFrame( animate );
renderer.render( scene, camera );
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function addVertices(mesh) {
var vertices = mesh.geometry.vertices;
var vertexMaterial = new THREE.MeshBasicMaterial({color: 0xff0000});
vertices.forEach(function (vertex) {
var vertexSphere = new THREE.SphereGeometry(0.05);
var vertexMesh = new THREE.Mesh(vertexSphere, vertexMaterial);
vertexMesh.position.copy(vertex);
scene.add(vertexMesh);
});
}
window.addEventListener("DOMContentLoaded", function(event) {
init();
animate();
});
</script>
</head>
<body>
</body>
</html>