我正在读一本书“学习Three.js - 用于WebGL的JavaScript 3D库 - 第2版”和书中的第一个例子，它根本不起作用。
有人可以给我一个方向吗？我试过"How can I enable WebGL in my browser?"并没有帮助。但是three.js / examples上的示例正在按预期工作。
我已经提取了three.js并将示例文件放在构建文件夹中，其中有三个.js。
我是否需要本地Web服务器来测试WebGL？
现在我尝试在Visual Code中进行调试和编码。还有其他建议吗？
<html>
<head>
<title>Example 01.02 - First Scene</title>
<script type="text/javascript" src="three.js"></script>
<style>
body {
/* set margin to 0 and overflow to hidden, to go fullscreen */
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<!-- Div which will hold the Output -->
<div id="WebGL-output">
</div>
<!-- Javascript code that runs our Three.js examples -->
<script type="text/javascript">
// once everything is loaded, we run our Three.js stuff.
function init() {
// 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 renderer = new THREE.WebGLRenderer();
renderer.setClearColorHex();
renderer.setClearColor(new THREE.Color(0xEEEEEE));
renderer.setSize(window.innerWidth, window.innerHeight);
// show axes in the screen
var axes = new THREE.AxisHelper(20);
scene.add(axes);
// create the ground plane
var planeGeometry = new THREE.PlaneGeometry(60, 20);
var planeMaterial = new THREE.MeshBasicMaterial({color: 0xcccccc});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
// rotate and position the plane
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 15;
plane.position.y = 0;
plane.position.z = 0;
// add the plane to the scene
scene.add(plane);
// create a cube
var cubeGeometry = new THREE.BoxGeometry(4, 4, 4);
var cubeMaterial = new THREE.MeshBasicMaterial({color: 0xff0000, wireframe: true});
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
// position the cube
cube.position.x = -4;
cube.position.y = 3;
cube.position.z = 0;
// add the cube to the scene
scene.add(cube);
// create a sphere
var sphereGeometry = new THREE.SphereGeometry(4, 20, 20);
var sphereMaterial = new THREE.MeshBasicMaterial({color: 0x7777ff, wireframe: true});
var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
// position the sphere
sphere.position.x = 20;
sphere.position.y = 4;
sphere.position.z = 2;
// add the sphere to the scene
scene.add(sphere);
// position and point the camera to the center of the scene
camera.position.x = -30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
// add the output of the renderer to the html element
document.getElementById("WebGL-output").appendChild(renderer.domElement);
// render the scene
renderer.render(scene, camera);
}
window.onload = init;
</script>
</body>
</html>
答案 0 :(得分：1)
行
renderer.setClearColorHex（）
应该删除。
这是带有jsfiddle的新代码（使用网络中的three.js）：
<html>
<head>
<title>Example 01.02 - First Scene</title>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/three.js/89/three.js"></script>
<style>
body {
/* set margin to 0 and overflow to hidden, to go fullscreen */
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<!-- Div which will hold the Output -->
<div id="WebGL-output">
</div>
<!-- Javascript code that runs our Three.js examples -->
<script type="text/javascript">
// once everything is loaded, we run our Three.js stuff.
function init() {
// 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 renderer = new THREE.WebGLRenderer();
//renderer.setClearColorHex();
renderer.setClearColor(new THREE.Color(0xEEEEEE));
renderer.setSize(window.innerWidth, window.innerHeight);
// show axes in the screen
var axes = new THREE.AxisHelper(20);
scene.add(axes);
// create the ground plane
var planeGeometry = new THREE.PlaneGeometry(60, 20);
var planeMaterial = new THREE.MeshBasicMaterial({
color: 0xcccccc
});
var plane = new THREE.Mesh(planeGeometry, planeMaterial);
// rotate and position the plane
plane.rotation.x = -0.5 * Math.PI;
plane.position.x = 15;
plane.position.y = 0;
plane.position.z = 0;
// add the plane to the scene
scene.add(plane);
// create a cube
var cubeGeometry = new THREE.BoxGeometry(4, 4, 4);
var cubeMaterial = new THREE.MeshBasicMaterial({
color: 0xff0000,
wireframe: true
});
var cube = new THREE.Mesh(cubeGeometry, cubeMaterial);
// position the cube
cube.position.x = -4;
cube.position.y = 3;
cube.position.z = 0;
// add the cube to the scene
scene.add(cube);
// create a sphere
var sphereGeometry = new THREE.SphereGeometry(4, 20, 20);
var sphereMaterial = new THREE.MeshBasicMaterial({
color: 0x7777ff,
wireframe: true
});
var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
// position the sphere
sphere.position.x = 20;
sphere.position.y = 4;
sphere.position.z = 2;
// add the sphere to the scene
scene.add(sphere);
// position and point the camera to the center of the scene
camera.position.x = -30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
// add the output of the renderer to the html element
document.getElementById("WebGL-output").appendChild(renderer.domElement);
// render the scene
renderer.render(scene, camera);
}
window.onload = init;
</script>
</body>
</html>