545 lines
19 KiB
Vue
545 lines
19 KiB
Vue
<template>
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<div class="three-viewer">
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<div ref="container" class="canvas-container"></div>
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<div class="annotations-container" ref="annotationsContainer"></div>
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</div>
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</template>
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<script>
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import * as THREE from 'three';
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import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js'; // 导入 GLTFLoader 用于加载 GLTF 模型
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import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js'; // 导入 OrbitControls 用于控制相机
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// 高亮
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import { EffectComposer } from "three/examples/jsm/postprocessing/EffectComposer.js";
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import { RenderPass } from "three/examples/jsm/postprocessing/RenderPass.js";
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import { OutlinePass } from "three/examples/jsm/postprocessing/OutlinePass.js";
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import { UnrealBloomPass } from "three/examples/jsm/postprocessing/UnrealBloomPass.js";
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import TextureName from '../../public/models/textureName.json'
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import { RoomEnvironment } from 'three/examples/jsm/environments/RoomEnvironment.js'
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import { CSS2DRenderer, CSS2DObject } from 'three/examples/jsm/renderers/CSS2DRenderer'
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export default {
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name: 'ThreeModel',
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props: {
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modelPath: {
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type: [String, Number],
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default: '',
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},
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annotations: {
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type: Array,
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default: () => []
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}
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},
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computed: {
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textureObj() {
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return this.$store && this.$store.state.textureObj || {}
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},
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},
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watch: {
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modelPath: {
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handler(v) {
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if(v) {
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if (this.scene) {
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this.scene.clear();
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this.scene = null;
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}
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// 2. 销毁渲染器
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if (this.renderer) {
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this.renderer.dispose();
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this.renderer.forceContextLoss();
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this.renderer = null;
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}
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// 3. 销毁相机
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this.camera = null;
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// 4. 清空画布DOM容器的内容
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if(this.sceneDomElement){
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this.sceneDomElement.innerHTML = '';
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}
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setTimeout(() => {
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this.init()
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}, 300)
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}
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},
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immediate: true
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},
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},
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data() {
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return {
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scene: null, // Three.js场景
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camera: null, // 相机
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renderer: null, // 渲染器
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controls: null, // 轨道控制器
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model: null, // 加载的3D模型
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frameId: null, // 动画帧ID
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sceneDomElement: null, // 容器DOM元素
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parent: null, // 容器
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maxDim: null,
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highlightColor: null, //高亮颜色
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composer: null,
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pmremGenerator: null,
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labelRenderer: null,
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annotationObjects: [],
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selectedPart: null
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};
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},
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mounted () {
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// this.onWindowResize(); // 初始化后立即调用一次
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// 添加窗口大小变化监听
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// window.addEventListener('resize', this.onWindowResize);
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this.resizeObserver = new ResizeObserver(this.onWindowResize);
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this.resizeObserver.observe(this.$refs.container);
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window.addEventListener('click', this.onMouseClick, false);
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this.highlightColor = new THREE.Color(0xff0000); // 高亮颜色为红色
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},
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beforeDestroy() {
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// 移除事件监听
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// window.removeEventListener('resize', this.onWindowResize);
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window.removeEventListener('resize', this.onWindowResize);
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// 断开ResizeObserver
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if (this.resizeObserver) {
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this.resizeObserver.disconnect();
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}
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if (this.labelRenderer) {
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this.labelRenderer.domElement.remove()
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}
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},
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destroyed() {
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cancelAnimationFrame(this.frameId);
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if (this.sceneDomElement && this.renderer) {
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this.sceneDomElement.removeChild(this.renderer.domElement);
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}
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if (this.renderer) {
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this.renderer.dispose();
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}
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if (this.scene) {
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this.scene.clear();
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}
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},
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methods: {
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init() {
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if (this.sceneDomElement && this.renderer) {
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this.sceneDomElement.removeChild(this.renderer.domElement);
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}
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// 获取容器元素
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this.sceneDomElement = this.$refs.container;
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// 1. 创建一个新的场景
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this.scene = new THREE.Scene();
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// 2. 创建相机
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const width = this.sceneDomElement.clientWidth;
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const height = this.sceneDomElement.clientHeight;
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this.camera = new THREE.PerspectiveCamera(55, width / height, 0.1, 1000);
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// 3. 创建渲染器
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this.renderer = new THREE.WebGLRenderer({
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antialias: true,
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alpha: true,
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});
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// CSS2D渲染器（用于标注）
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this.labelRenderer = new CSS2DRenderer()
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this.labelRenderer.setSize(width, height)
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this.labelRenderer.domElement.style.position = 'absolute'
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this.labelRenderer.domElement.style.top = '0'
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this.labelRenderer.domElement.style.pointerEvents = 'none'
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this.$refs.annotationsContainer.appendChild(this.labelRenderer.domElement)
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// 设置画布分辨率 提高画质
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this.renderer.setPixelRatio(window.devicePixelRatio);
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// 渲染器开启阴影效果
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this.renderer.shadowMap.enabled = true
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this.renderer.setSize(width, height);
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// this.renderer.setClearColor(0xcccccc);
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this.renderer.outputEncoding = THREE.sRGBEncoding; // 设置颜色编码
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this.sceneDomElement.appendChild(this.renderer.domElement);
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//4. 添加光源
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const ambientLight = new THREE.AmbientLight(0xffffff, 0.6); // 创建环境光
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this.scene.add(ambientLight); // 将环境光添加到场景中
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const directionalLight = new THREE.DirectionalLight(0xffffff, 0.6); // 平行光
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directionalLight.position.set(1, 1, 1);
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this.scene.add(directionalLight);
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directionalLight.castShadow = true;
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// 环境光
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this.pmremGenerator = new THREE.PMREMGenerator(this.renderer)
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this.pmremGenerator.compileEquirectangularShader()
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const env = this.pmremGenerator.fromScene(new RoomEnvironment(this.renderer), 0.04).texture
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this.scene.environment = env
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// 3. 添加地面（接收阴影）
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const groundGeometry = new THREE.PlaneGeometry(8, 8);
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const groundMaterial = new THREE.MeshStandardMaterial({ color: 0xcccccc, side: THREE.DoubleSide });
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const ground = new THREE.Mesh(groundGeometry, groundMaterial);
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ground.rotation.x = -Math.PI / 2;
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ground.position.y = -1;
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ground.receiveShadow = true; // ⭐ 关键：地面接收阴影
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this.scene.add(ground);
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// 5. 添加轨道控制器
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this.controls = new OrbitControls(this.camera, this.renderer.domElement);
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this.controls.enableDamping = true; // 启用阻尼效果
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this.controls.dampingFactor = 0.25; // 阻尼系数
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// 6. 加载3D模型
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this.loadModel();
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// 7. 开始动画循环
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this.animate();
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},
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loadModel() {
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const loader = new GLTFLoader();
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const textureLoader = new THREE.TextureLoader();
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console.log(this.modelPath);
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loader.load(
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this.modelPath,
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// 'https://skeps-bucket.oss-cn-shenzhen.aliyuncs.com/2026%2FFile%2F4d3a9525-c415-4ab2-b916-d87b4b86ebcbSK010020001001BLQ_%E4%BA%A4%E6%B5%81%E9%81%BF%E9%9B%B7%E5%99%A8%2C%E5%B8%A6%E6%94%AF%E6%92%91%E4%BB%B6%E5%9B%BA%E5%AE%9A%E9%97%B4%E9%9A%99.glb',
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(gltf) => {
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// 移除旧模型
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if (this.model) {
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this.scene.remove(this.model);
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}
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this.model = gltf.scene;
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this.scene.add(this.model);
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// 遍历模型所有子元素
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this.model.traverse((child) => {
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if (child.isMesh) {
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console.log(7777, child)
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child.material.emissiveMap = child.material.map;
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child.castShadow = true; // 让模型产生阴影
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child.receiveShadow = true; // 让模型接受阴影
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// child.material.emissive = child.material.color;
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let name = child.material.name.split('.')[0]
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let path = TextureName[name]
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if(path) {
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if(this.textureObj[name]) {
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child.material = this.textureObj[name]
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child.material.needsUpdate = true;
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} else {
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let texture = textureLoader.load(`/models/texture/${encodeURIComponent(path)}.jpg`)
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texture.wrapS = THREE.RepeatWrapping;
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texture.wrapT = THREE.RepeatWrapping;
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texture.repeat.set( 1, 1 );
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let material = null
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if(name.includes('金属')) {
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material = new THREE.MeshStandardMaterial({
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map: texture,
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// color: 0x049EF4,
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// emissive: 0x000000,
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metalness: 0.55, // 金属感
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roughness: 0.05 // 粗糙度，0为镜面反射
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})
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} else {
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material = new THREE.MeshPhongMaterial( {
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// ...child.material,
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map: texture,
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emissiveMap: child.material.map,
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shininess: 0,
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} );
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}
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child.material = material
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child.material.needsUpdate = true;
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this.textureObj[name] = material
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// this.$store.commit('set_textureObj', this.textureObj)
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}
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}
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}
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});
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// 计算模型包围盒并居中
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const box = new THREE.Box3().setFromObject(this.model);
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const center = box.getCenter(new THREE.Vector3());
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const size = box.getSize(new THREE.Vector3());
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// 根据模型大小调整相机
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const maxDim = Math.max(size.x, size.y, size.z);
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this.maxDim = maxDim
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this.camera.position.z = this.maxDim * 1;
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this.camera.near = maxDim / 100;
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this.camera.far = maxDim * 100;
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this.camera.updateProjectionMatrix();
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// 创建一个父对象用于旋转
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this.parent = new THREE.Object3D(); // 创建一个新的 Object3D 作为父对象
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this.parent.add(this.model); // 将模型添加到父对象
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this.scene.add(this.parent); // 将父对象添加到场景
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// 让控制器聚焦到模型中心 聚焦中心
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this.controls.target.copy(center);
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this.controls.enableRotate = true;
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this.controls.minPolarAngle = Math.PI / 2; // 限制向下旋转的角度
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this.controls.maxPolarAngle = Math.PI / 2; // 限制向上旋转的角度
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this.controls.update();
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this.createAnnotations()
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this.$emit('model-loaded')
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},
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(progress) => {
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const percent = (progress.loaded / progress.total) * 100
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this.$emit('loading-progress', percent)
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},
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(error) => {
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console.error('模型加载失败:', error);
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this.$emit('model-error', error)
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}
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);
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},
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animate() {
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this.frameId = requestAnimationFrame(this.animate);
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if(this.parent && this.isPlay) {
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this.parent.rotation.y += 0.001; // 沿 Y 轴旋转父对象
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}
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// 更新控制器
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if (this.controls) {
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this.controls.update();
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}
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// 渲染场景
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if (this.renderer && this.scene && this.camera) {
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this.renderer.render(this.scene, this.camera);
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}
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if (this.composer) {
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this.composer.render(this.scene, this.camera);
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}
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if(this.labelRenderer && this.scene && this.camera) {
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this.labelRenderer.render(this.scene, this.camera)
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}
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},
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// 响应式调整大小
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onWindowResize() {
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if (this.camera && this.renderer) {
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const width = this.sceneDomElement.clientWidth;
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const height = this.sceneDomElement.clientHeight;
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this.camera.aspect = width / height;
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this.camera.updateProjectionMatrix();
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this.renderer.setSize(width, height);
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}
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},
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// 点击射线
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onMouseClick(event) {
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console.log('我点击了')
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// const raycaster = new THREE.Raycaster();
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// const mouse = new THREE.Vector2();
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// // 计算鼠标在屏幕上的位置并转换为Normalized device coordinates (NDC)
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// console.log(this.sceneDomElement.clientWidth, window.innerWidth)
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// mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
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// mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
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// // 更新Raycaster的射线位置和方向
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// raycaster.setFromCamera(mouse, this.camera);
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if(!this.sceneDomElement) return
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let getBoundingClientRect = this.sceneDomElement.getBoundingClientRect()
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// 屏幕坐标转标准设备坐标
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let x = ((event.clientX - getBoundingClientRect .left) / this.sceneDomElement.offsetWidth) * 2 - 1;// 标准设备横坐标
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let y = -((event.clientY - getBoundingClientRect .top) / this.sceneDomElement.offsetHeight) * 2 + 1;// 标准设备纵坐标
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let standardVector = new THREE.Vector3(x, y, 1);// 标准设备坐标
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// 标准设备坐标转世界坐标
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let worldVector = standardVector.unproject(this.camera);
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// 射线投射方向单位向量(worldVector坐标减相机位置坐标)
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let ray = worldVector.sub(this.camera.position).normalize();
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// 创建射线投射器对象
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let rayCaster = new THREE.Raycaster(this.camera.position, ray);
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// 计算物体和射线的交点
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const intersects = rayCaster.intersectObjects(this.model.children, true);
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if (intersects.length !== 0 && intersects[0].object instanceof THREE.Mesh) {
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// this.controls.target.copy(intersects[0].point);
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let selectedObject = intersects[0].object;
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let selectedObjects = [];
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selectedObjects.push(selectedObject.parent);
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this.outlineObj(selectedObjects);
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} else {
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console.log('没找到', this.composer)
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this.composer = null
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}
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},
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outlineObj(selectedObjects) {
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let outlinePass;
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let renderPass;
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let unrealBloomPass;
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// 创建一个EffectComposer（效果组合器）对象，然后在该对象上添加后期处理通道。
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// 用于模型边缘高亮
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this.composer = new EffectComposer(this.renderer);
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this.composer.renderTarget1.texture.outputColorSpace = THREE.sRGBEncoding;
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this.composer.renderTarget2.texture.outputColorSpace = THREE.sRGBEncoding;
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this.composer.renderTarget1.texture.encoding = THREE.sRGBEncoding;
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this.composer.renderTarget2.texture.encoding = THREE.sRGBEncoding;
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// 新建一个场景通道 为了覆盖到原来的场景上
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renderPass = new RenderPass(this.scene, this.camera);
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this.composer.addPass(renderPass);
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// 物体边缘发光通道
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outlinePass = new OutlinePass(
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new THREE.Vector2(this.sceneDomElement.clientWidth, this.sceneDomElement.clientHeight),
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this.scene,
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this.camera,
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selectedObjects
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);
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outlinePass.selectedObjects = selectedObjects;
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outlinePass.edgeStrength = 10.0; // 边框的亮度
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outlinePass.edgeGlow = 0.5; // 光晕[0,1]
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outlinePass.usePatternTexture = false; // 是否使用父级的材质
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outlinePass.edgeThickness = 1.0; // 边框宽度
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outlinePass.downSampleRatio = 1; // 边框弯曲度
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outlinePass.pulsePeriod = 5; // 呼吸闪烁的速度
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outlinePass.visibleEdgeColor.set(parseInt(0x00ff00)); // 呼吸显示的颜色
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outlinePass.hiddenEdgeColor = new THREE.Color(0, 0, 0); // 呼吸消失的颜色
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outlinePass.clear = true;
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this.composer.addPass(outlinePass);
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// 自定义的着色器通道 作为参数
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// effectFXAA = new ShaderPass(FXAAShader);
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// effectFXAA.uniforms.resolution.value.set(
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// 1 / window.innerWidth,
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// 1 / window.innerHeight
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// );
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// effectFXAA.renderToScreen = true;
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// composer.addPass(effectFXAA);
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// // 抗锯齿
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// smaaPass = new SMAAPass();
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// composer.addPass(smaaPass);
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// // 发光效果
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unrealBloomPass = new UnrealBloomPass();
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unrealBloomPass.strength = 0.1;
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unrealBloomPass.radius = 0;
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unrealBloomPass.threshold = 1;
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this.composer.addPass(unrealBloomPass);
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// this.scene.background = new THREE.Color(0x1b1824);
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},
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// 创建标签
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createAnnotations() {
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// 清除旧标注
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this.annotationObjects.forEach(obj => {
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this.scene.remove(obj)
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})
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this.annotationObjects = []
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// 创建标注点的预设位置（圆形分布）
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const radius = 2
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const angleStep = (Math.PI * 2) / this.annotations.length
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this.annotations.forEach((annotation, index) => {
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const angle = angleStep * index
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const x = Math.cos(angle) * radius
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const z = Math.sin(angle) * radius
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const y = 1 + Math.sin(index) * 0.5
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console.log(666, annotation.name, x, y, z)
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// 创建标注标签
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const labelDiv = document.createElement('div')
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||
labelDiv.className = 'annotation-label'
|
||
labelDiv.textContent = `${index + 1} ${annotation.name}`
|
||
labelDiv.style.cssText = `
|
||
background: rgba(64, 158, 255, 0.9);
|
||
color: white;
|
||
padding: 5px 10px;
|
||
border-radius: 4px;
|
||
font-size: 12px;
|
||
cursor: pointer;
|
||
white-space: nowrap;
|
||
pointer-events: auto;
|
||
`
|
||
labelDiv.addEventListener('click', () => {
|
||
this.onAnnotationClick(annotation, index)
|
||
})
|
||
|
||
const label = new CSS2DObject(labelDiv)
|
||
label.position.set(x/10, y/10, z/10)
|
||
label.userData = { annotation, index }
|
||
|
||
this.scene.add(label)
|
||
this.annotationObjects.push(label)
|
||
|
||
// 创建连接线
|
||
const points = [
|
||
new THREE.Vector3(0, 0, 0),
|
||
new THREE.Vector3(x/10, y/10, z/10)
|
||
// new THREE.Vector3(0.1, 0.1, 0.1)
|
||
]
|
||
const geometry = new THREE.BufferGeometry().setFromPoints(points)
|
||
const material = new THREE.LineBasicMaterial({
|
||
color: 0x409eff,
|
||
transparent: true,
|
||
opacity: 0.5
|
||
})
|
||
const line = new THREE.Line(geometry, material)
|
||
this.scene.add(line)
|
||
this.annotationObjects.push(line)
|
||
})
|
||
},
|
||
onAnnotationClick(annotation, index) {
|
||
this.highlightPart(index)
|
||
this.$emit('annotation-click', annotation, index)
|
||
},
|
||
|
||
highlightPart(index) {
|
||
// 重置之前的高亮
|
||
if (this.selectedPart !== null) {
|
||
this.annotationObjects.forEach((obj, i) => {
|
||
if (obj.isLine) {
|
||
obj.material.opacity = 0.5
|
||
} else if (obj.element) {
|
||
obj.element.style.background = 'rgba(64, 158, 255, 0.9)'
|
||
obj.element.style.transform = 'scale(1)'
|
||
}
|
||
})
|
||
}
|
||
|
||
// 高亮选中的部件
|
||
this.selectedPart = index
|
||
this.annotationObjects.forEach((obj, i) => {
|
||
const objIndex = Math.floor(i / 2)
|
||
if (objIndex === index) {
|
||
if (obj.isLine) {
|
||
obj.material.opacity = 1
|
||
obj.material.color.setHex(0xff6b00)
|
||
} else if (obj.element) {
|
||
obj.element.style.background = 'rgba(255, 107, 0, 0.95)'
|
||
obj.element.style.transform = 'scale(1.1)'
|
||
}
|
||
}
|
||
})
|
||
},
|
||
}
|
||
}
|
||
</script>
|
||
|
||
<style scoped>
|
||
.three-viewer {
|
||
width: 100%;
|
||
height: 100%;
|
||
position: relative;
|
||
}
|
||
|
||
.canvas-container {
|
||
width: 100%;
|
||
height: 100%;
|
||
}
|
||
|
||
.annotations-container {
|
||
position: absolute;
|
||
top: 0;
|
||
left: 0;
|
||
width: 100%;
|
||
height: 100%;
|
||
pointer-events: none;
|
||
}
|
||
|
||
</style>
|