3d水球图,利用three.js实现
时间: 2023-11-17 08:49:45 浏览: 281
要利用 Three.js 实现 3D 水球图,可以按照以下步骤进行:
1. 准备基本的 HTML 结构和 Three.js 库文件的引入:
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>3D 水球图</title>
<style>
body {
margin: 0;
padding: 0;
}
canvas {
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<script src="https://cdn.jsdelivr.net/npm/three@0.128.0/build/three.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/controls/OrbitControls.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/loaders/GLTFLoader.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/loaders/RGBELoader.js"></script>
</body>
</html>
```
2. 创建 Three.js 场景、相机、渲染器、光源等基本元素:
```javascript
// 创建场景
const scene = new THREE.Scene();
// 创建相机
const camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.set(0, 0, 5);
// 创建渲染器
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// 创建球体
const sphereGeometry = new THREE.SphereGeometry(1, 64, 64);
const sphereMaterial = new THREE.MeshPhysicalMaterial({
color: 0x00aaff,
roughness: 0.2,
metalness: 0.7,
transparent: true,
opacity: 0.8,
clearcoat: 1,
clearcoatRoughness: 0.1,
envMapIntensity: 1.5,
});
const sphere = new THREE.Mesh(sphereGeometry, sphereMaterial);
scene.add(sphere);
// 创建光源
const ambientLight = new THREE.AmbientLight(0xffffff, 0.5);
scene.add(ambientLight);
const directionalLight = new THREE.DirectionalLight(0xffffff, 0.5);
directionalLight.position.set(0, 1, 1);
scene.add(directionalLight);
// 创建控制器
const controls = new THREE.OrbitControls(camera, renderer.domElement);
controls.enableDamping = true;
controls.dampingFactor = 0.05;
controls.screenSpacePanning = false;
controls.minDistance = 3;
controls.maxDistance = 10;
controls.maxPolarAngle = Math.PI / 2;
```
3. 加载环境贴图和球体纹理:
```javascript
// 加载 HDR 环境贴图
const envMapLoader = new THREE.RGBELoader();
envMapLoader.load('path/to/hdr/image.hdr', (texture) => {
texture.mapping = THREE.EquirectangularReflectionMapping;
scene.environment = texture;
});
// 加载球体纹理
const textureLoader = new THREE.TextureLoader();
textureLoader.load('path/to/texture/image.jpg', (texture) => {
sphereMaterial.map = texture;
sphereMaterial.needsUpdate = true;
});
```
4. 渲染场景:
```javascript
function render() {
requestAnimationFrame(render);
controls.update();
renderer.render(scene, camera);
}
render();
```
以上是实现 3D 水球图的基本步骤,具体实现还需要根据实际需求进行调整。
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