2025-03-11 08:25:45 +00:00
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<!--********************************************************************
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* by jiawanlong
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*********************************************************************-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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<style>
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* {
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margin: 0;
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padding: 0;
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}
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body,
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.box {
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width: 100%;
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background-color: #1f1f1f;
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height: 100%;
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}
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.card {
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color: white;
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background: blueviolet;
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backface-visibility: hidden;
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}
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</style>
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</head>
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<body>
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<!-- CSS3DObject、CSS3DSprite(精灵)、CSS2DObject的区别
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CSS3D不面向摄像机，场景缩放时，缩小放大跟随着，不被模型遮挡，通过DOM事件点击
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CSS2D面向摄像机，场景缩放时，缩小放大都一样大，不被模型遮挡，通过DOM事件点击。
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精灵面向摄像机，场景缩放时，缩小放大跟随着，会被模型遮挡，可以被射线拾取。 -->
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<!-- 渲染容器 -->
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<div class="box" id="box"></div>
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<!-- 标签 -->
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<div class="card" id="cardId">模型标签</div>
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<script type="importmap">
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{
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"imports": {
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2025-03-19 03:00:22 +00:00
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"three": "./../../libs/three/build/three.module.js",
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"three/addons/": "./../../libs/three/examples/jsm/"
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2025-03-11 08:25:45 +00:00
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { CSS2DRenderer, CSS2DObject } from 'three/addons/renderers/CSS2DRenderer.js';
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const scene = new THREE.Scene()
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let renderer = new THREE.WebGLRenderer({})
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let cssRenderer = new CSS2DRenderer()
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let box = document.getElementById("box")
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// 坐标轴+灯光
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const axes = new THREE.AxesHelper(500)
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scene.add(axes)
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// 相机
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const camera = new THREE.PerspectiveCamera();
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camera.position.set(400, 400, 400);
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camera.lookAt(0, 0, 0);
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//渲染区域
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renderer.setSize(window.innerWidth, window.innerHeight)
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box.appendChild(renderer.domElement)
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//css3渲染区域
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cssRenderer.setSize(window.innerWidth, window.innerHeight)
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cssRenderer.domElement.style.position = 'absolute'
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cssRenderer.domElement.style.top = 0 + 'px'
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box.appendChild(cssRenderer.domElement)
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// ----标注----
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let tag = new CSS2DObject(document.getElementById('cardId'))
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tag.position.set(100, 100, 100);
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scene.add(tag)
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// 执行渲染
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function render() {
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cssRenderer.render(scene, camera)
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renderer.render(scene, camera)
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requestAnimationFrame(render);
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}
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render();
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let controls = new OrbitControls(camera, cssRenderer.domElement)
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controls.addEventListener('change', function () {
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cssRenderer.render(scene, camera)
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renderer.render(scene, camera)
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});
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</script>
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</body>
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</html>
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