我试图使用csg.js-functions将一个球体切成一个盒子，但是它不起作用吗？我阅读了http://learningthreejs.com/blog/2011/12/10/constructive-solid-geometry-with-csg-js/上的教程，但仍然无法正常工作。
<html>
<head>
<title>Experiment</title>
</head>
<body>
<script src="three_js\build\three.min.js"></script>
<script src="ThreeCSG.js"></script>
<script src="csg.js"></script>
<script type="text/javascript">
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth-20, window.innerHeight -20);
document.body.appendChild( renderer.domElement );
var geometry1 = new THREE.BoxGeometry( 10, 10, 10);
var material = new THREE.MeshPhongMaterial( {specular: "#fdfb57", color: "#d8d613", emissive: "#6b6a0d", side: THREE.DoubleSide} );
var box = new THREE.Mesh(geometry1, material);
var sphere = new THREE.Mesh(new THREE.SphereGeometry(5, 32, 32), material);
scene.add(box);
scene.add(sphere);
var boxCsg = THREE.CSG.toCSG(box);
var sphereCsg = THREE.CSG.toCSG(sphere);
boxCsg.substract(sphereCsg);
box = THREE.CSG.fromCSG(boxCsg);
camera.position.z = 50;
var directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
directionalLight.position.set( 5, 10, 5 );
scene.add( directionalLight );
var render = function () {
requestAnimationFrame( render );
renderer.render(scene, camera);
//Hier wird die Größe des Fensters manipuliert!
renderer.setSize(window.innerWidth - 20, window.innerHeight - 20);
};
render();
</script>
</body>
</html>
最佳答案
本文已过时，这是新语法：
var box = new THREE.Mesh( new THREE.BoxGeometry( 10, 1, 10 ) );
var box_bsp = new ThreeBSP( box );
var cutgeo = new THREE.SphereGeometry( 1, 16, 8 );
var sub = new THREE.Mesh( cutgeo );
var subtract_bsp = new ThreeBSP( sub );
var result_bsp = box_bsp.subtract( substract_bsp );
var result = result_bsp.toMesh();
scene.add( result );
Three.js r107：
http://jsfiddle.net/r7suq1mv/2/