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+import * as THREE from 'three';
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+import { RGBELoader } from 'three/examples/jsm/loaders/RGBELoader.js';
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+// 导入轨道控制器
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+import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls';
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+import { CSS3DRenderer, CSS3DObject } from 'three/examples/jsm/renderers/CSS3DRenderer'
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+// import gsap from 'gsap';
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+import ResourceTracker from '/@/utils/threejs/ResourceTracker';
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+import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader'
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+import { DRACOLoader } from 'three/examples/jsm/loaders/DRACOLoader'
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+
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+
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+
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+class UseThree {
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+ canvasContainer: HTMLCanvasElement;
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+ CSSCanvasContainer: HTMLCanvasElement | null = null;
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+ camera: THREE.PerspectiveCamera | null = null;
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+ scene: THREE.Scene | null = null;
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+ renderer: THREE.WebGLRenderer | null = null;
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+ css3dRender: CSS3DRenderer | null = null;
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+ orbitControls: OrbitControls | null = null;
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+ giftLoader: THREE.Object3D | null = null;
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+ animationMixer: THREE.AnimationMixer | null = null;
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+ animationAction: THREE.AnimationAction | null = null;
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+ clock: THREE.Clock = new THREE.Clock(); // 计时器
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+ timeoutId: NodeJS.Timeout | null = null;
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+ animationId: number = 0
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+ resourceTracker:ResourceTracker | null = null
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+ track: any = null
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+ spriteText: THREE.Sprite | null = null
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+
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+ constructor(canvasSelector, cssCanvas?) {
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+
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+
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+ this.resourceTracker = new ResourceTracker()
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+ this.track = this.resourceTracker.track.bind(this.resourceTracker)
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+ this.animationId = 0
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+ this.canvasContainer = document.querySelector(canvasSelector);
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+
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+ //初始化
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+ this.init(cssCanvas);
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+ this.animate();
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+ window.addEventListener('resize', this.resizeRenderer.bind(this));
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+ // 添加滚动事件,鼠标滚动模型执行动画
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+ // window.addEventListener('wheel', this.wheelRenderer.bind(this));
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+ }
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+ init(cssCanvas?) {
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+ // 初始化场景
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+ this.initScene();
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+ // 初始化环境光
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+ this.initLight();
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+ // 初始化相机
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+ this.initCamera();
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+ //初始化渲染器
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+ this.initRenderer();
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+
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+ // 初始化控制器
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+ this.initControles();
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+
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+ if(cssCanvas){
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+ this.initCSSRenderer(cssCanvas)
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+ // this.addTextSprite()
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+ }
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+ // this.setTestPlane()
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+ }
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+
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+ initScene() {
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+ this.scene = this.track(new THREE.Scene());
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+ // const axesHelper = new THREE.AxesHelper(100);
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+ // this.scene?.add(axesHelper);
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+
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+ // const size = 1000;
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+ // const divisions = 10;
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+ // const gridHelper = new THREE.GridHelper( size, divisions );
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+ // this.scene?.add( gridHelper )
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+ }
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+
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+ initLight() {
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+ const light = this.track(new THREE.AmbientLight(0xffffff, 1));
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+ light.position.set(0, 1000, 1000);
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+ (this.scene as THREE.Scene).add(light);
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+ }
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+
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+ initCamera() {
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+ this.camera = this.track(new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 0.01, 1000));
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+ this.camera?.position.set(0, 0.2, 0.3);
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+ // const helper = new THREE.CameraHelper( this.camera);
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+ // this.scene?.add( helper );
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+
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+ }
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+
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+ initRenderer() {
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+
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+ this.renderer = this.track(new THREE.WebGLRenderer({ antialias: true, alpha:true })) as THREE.WebGLRenderer;
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+ // 设置屏幕像素比
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+ this.renderer?.setPixelRatio(window.devicePixelRatio);
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+ // 设置渲染的尺寸
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+ this.renderer?.setSize(window.innerWidth, window.innerHeight);
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+ // 色调映射
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+ this.renderer.toneMapping = THREE.ACESFilmicToneMapping;
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+
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+ this.renderer.outputEncoding = THREE.sRGBEncoding;
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+
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+ this.renderer.shadowMap.enabled = true
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+
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+ this.renderer.shadowMap.type = THREE.PCFSoftShadowMap
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+
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+ // 曝光程度
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+ this.renderer.toneMappingExposure = 1;
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+
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+ this.canvasContainer.appendChild(this.renderer.domElement);
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+
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+ }
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+
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+ initCSSRenderer(cssCanvas) {
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+ this.CSSCanvasContainer = document.querySelector(cssCanvas);
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+ this.css3dRender = this.track(new CSS3DRenderer()) as CSS3DRenderer
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+ this.css3dRender.setSize((window.innerWidth), (window.innerHeight))
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+ this.CSSCanvasContainer?.appendChild(this.css3dRender.domElement)
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+ this.css3dRender.render(this.scene as THREE.Scene, this.camera as THREE.PerspectiveCamera)
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+ this.orbitControls = this.track(new OrbitControls(this.camera as THREE.Camera, this.css3dRender?.domElement)) as OrbitControls;
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+ this.orbitControls.update()
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+ // this.orbitControls.enableZoom = false;
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+ // // to disable rotation
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+ // this.orbitControls.enableRotate = false;
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+ // // to disable pan
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+ // this.orbitControls.enablePan = false;
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+ }
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+
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+ initControles() {
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+ this.orbitControls = this.track(new OrbitControls(this.camera as THREE.Camera, this.renderer?.domElement)) as OrbitControls;
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+ this.orbitControls.update()
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+ // this.orbitControls.enableZoom = false;
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+ // // to disable rotation
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+ // this.orbitControls.enableRotate = false;
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+ // // to disable pan
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+ // this.orbitControls.enablePan = false;
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+ }
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+
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+ setModalCenter(group) {
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+ var box3 = new THREE.Box3()
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+
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+ // 计算层级模型group的包围盒
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+ // 模型group是加载一个三维模型返回的对象,包含多个网格模型
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+ box3.expandByObject(group)
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+ // 计算一个层级模型对应包围盒的几何体中心在世界坐标中的位置
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+ var center = new THREE.Vector3()
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+ box3.getCenter(center)
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+ // console.log('查看几何体中心坐标', center);
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+ // 重新设置模型的位置,使之居中。
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+ group.position.x = group.position.x - center.x
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+ group.position.y = group.position.y - center.y
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+ group.position.z = group.position.z - center.z
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+ };
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+
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+ setModel(modalName) {
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+ const a = new Date().getTime() / 1000
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+ return new Promise(async (resolve, reject) => {
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+ try {
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+ const db = window['CustomDB']
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+ const modalArr = await db.modal.where('modalName').equals(modalName).toArray()
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+ // debugger
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+ if(modalArr.length > 0) {
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+ const modalValue = modalArr[0].modalVal
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+ try {
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+ const gltfLoader = new GLTFLoader()
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+ const dracoLoader = new DRACOLoader();
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+ dracoLoader.setDecoderPath( '/3D/draco/gltf/' );
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+ dracoLoader.setDecoderConfig({ type: "js" }); //使用兼容性强的draco_decoder.js解码器
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+ dracoLoader.preload();
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+ gltfLoader.setDRACOLoader(dracoLoader);
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+
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+ gltfLoader.setPath('/3d/glft/')
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+ gltfLoader.parse(modalValue, '/3d/glft/', (gltf) => {
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+ const object = this.track(gltf.scene.children[0])
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+ this.setModalCenter(object)
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+ object.traverse((obj) => {
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+ if (obj instanceof THREE.Mesh) {
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+ obj.material.emissiveIntensity = 1
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+ obj.material.emissiveMap = obj.material.map
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+ if(obj.name !== "buxiugangse") {
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+ obj.receiveShadow = true
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+ }
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+ obj.castShadow = true
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+
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+
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+ } else if (obj.type === 'Object3D') {
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+ // const text3D = this.addYFText(obj)
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+ // const textCQ3D = this.addCQText(obj)
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+ // gltf.scene.add(text3D)
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+ // gltf.scene.add(textCQ3D)
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+ }
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+ })
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+ this.scene?.add(object);
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+ console.log(object);
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+ resolve(object)
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+ }, (err)=> {
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+ console.log(err);
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+
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+ })
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+
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+ } catch (error) {
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+ console.log(error);
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+ }
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+ }
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+ } catch (error) {
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+ reject('加载模型出错')
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+ }
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+ })
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+ }
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+
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+ setTestPlane() {
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+ const plane = new THREE.Mesh(
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+ new THREE.PlaneGeometry( 100, 100 ),
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+ new THREE.MeshPhongMaterial( { color: 0x999999, specular: 0x101010 } )
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+ );
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+ plane.rotation.x = - Math.PI / 2;
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+ plane.position.y = 0.03;
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+ plane.receiveShadow = true;
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+ // this.scene?.add( plane );
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+ }
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+
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+ /* 自定义材质 */
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+ setCustomMaterial(group){}
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+
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+ /* 场景环境背景 */
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+ setEnvMap(hdr) {
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+ // new RGBELoader().setPath('/public/3D/hdr/').load(hdr + '.jpeg', (texture) => {
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+ // debugger
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+ // texture.mapping = THREE.EquirectangularReflectionMapping;
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+ // (this.scene as THREE.Scene).background = texture;
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+ // (this.scene as THREE.Scene).environment = texture;
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+ // });
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+ new THREE.TextureLoader().setPath('/3D/hdr/').load(hdr + '.jpeg', (texture) => {
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+ texture.mapping = THREE.EquirectangularReflectionMapping;
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+ // (this.scene as THREE.Scene).background = new THREE.Color('#00000000');
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+ (this.scene as THREE.Scene).environment = texture;
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+ });
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+ }
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+
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+ render() {
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+ const delta = this.clock.getElapsedTime();
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+ this.resetLookAt()
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+ this.startMY()
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+ this.renderer?.render(this.scene as THREE.Object3D, this.camera as THREE.Camera);
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+ this.css3dRender?.render(this.scene as THREE.Scene, this.camera as THREE.PerspectiveCamera)
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+ this.animationMixer?.update(delta);
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+ }
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+
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+ /* 实时物体刷新朝向 */
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+ resetLookAt() {
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+ }
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+ /* 漫游 */
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+ startMY() {}
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+
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+ animate() {
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+ // this.renderer?.setAnimationLoop(this.render.bind(this));
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+ if(this.animationId != -1) {
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+ this.render()
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+ this.animationId = requestAnimationFrame(this.animate.bind(this))
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+ }
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+ }
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+ resizeRenderer() {
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+ // 更新相机比例
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+ (this.camera as THREE.PerspectiveCamera).aspect = window.innerWidth / window.innerHeight;
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+ // 刷新相机矩阵
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+ this.camera?.updateProjectionMatrix();
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+ // 设置场景尺寸
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+ this.renderer?.setSize(window.innerWidth, window.innerHeight);
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+ this.css3dRender?.setSize(window.innerWidth, window.innerHeight);
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+ }
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+ wheelRenderer(e: WheelEvent) {
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+ const timeScale = e.deltaY > 0 ? 1 : -1;
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+ this.animationAction?.setEffectiveTimeScale(timeScale);
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+ (this.animationAction as THREE.AnimationAction).paused = false;
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+ this.animationAction?.play();
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+ if (this.timeoutId) {
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+ clearTimeout(this.timeoutId);
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+ }
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+ this.timeoutId = setTimeout(() => {
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+ this.animationAction?.halt(0.5);
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+ }, 500);
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+ }
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+ deleteModal() {
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+ try {
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+
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+ this.resourceTracker && this.resourceTracker.dispose()
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+ this.renderer?.dispose()
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+ this.renderer?.forceContextLoss()
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+ // this.renderer?.domElement = null
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+ this.renderer = null
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+
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+ // this.css3dRender?.domElement = null
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+ this.css3dRender = null;
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+
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+ cancelAnimationFrame(this.animationId);
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+
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+ const gl = this.renderer?.domElement.getContext("webgl");
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+ gl && gl?.getExtension("WEBGL_lose_context")?.loseContext();
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+
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+ const gl1 = this.css3dRender?.domElement.getContext("webgl");
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+ gl1 && gl1?.getExtension("WEBGL_lose_context")?.loseContext();
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+
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+ this.animationId = -1
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+
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+ this.resourceTracker?.untrack(this.resourceTracker.resources)
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+ // this.scene = null
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+ console.log('销毁场景',this.scene);
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+
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+ } catch (error) {
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+ console.log(error);
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+ }
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+ // this.scene?.children.forEach((obj:any) => {
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+ // if(obj.type === 'Group'){
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+ // obj.traverse(function(item:any) {
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+ // if (item.type === 'Mesh') {
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+ // item.geometry.dispose();
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+ // item.material.dispose();
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+ // !!item.clear&&item.clear();
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+ // }
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+ // })
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+ // }else if (obj.material) {
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+ // obj.material.dispose();
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+ // }else if (obj.geometry) {
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+ // obj.geometry.dispose();
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+ // }
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+ // this.scene?.remove(obj)
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+ // !!obj.clear??obj.clear()
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+ // obj = null;
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+ // })
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+ // let gl = this.renderer?.domElement.getContext("webgl");
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+ // gl && gl?.getExtension("WEBGL_lose_context")?.loseContext();
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+
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+ // this.renderer?.forceContextLoss();
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+ // this.renderer?.dispose();
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+ // this.camera = null;
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+ // this.orbitControls = null;
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+ // this.renderer.domElement = null;
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+ // this.renderer = null;
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+
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+ // css3dRender.domElement = null;
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+ // css3dRender = null;
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+ // model3D.innerHTML = '';
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+ // css3D.innerHTML = '';
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+ // model3D = null
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+ // css3D = null
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+
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+ // this.stats = null
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+ // scene = null
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+
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+ THREE.Cache.clear();
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+ console.log('3D环境已清理干净');
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+ }
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+
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+
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+ /* 创建字体精灵 */
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+ addTextSprite(message, parameters) {
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+ if (parameters === undefined) parameters = {};
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+
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+ var fontface = parameters.hasOwnProperty("fontface") ?
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+ parameters["fontface"] : "Arial";
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+
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+ /* 字体大小 */
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+ var fontsize = parameters.hasOwnProperty("fontsize") ?
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+ parameters["fontsize"] : 18;
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+
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+ /* 边框厚度 */
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+ var borderThickness = parameters.hasOwnProperty("borderThickness") ?
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+ parameters["borderThickness"] : 4;
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+
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+ /* 边框颜色 */
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+ var borderColor = parameters.hasOwnProperty("borderColor") ?
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+ parameters["borderColor"] : { r: 0, g: 0, b: 0, a: 1.0 };
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+
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+ /* 背景颜色 */
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+ var backgroundColor = parameters.hasOwnProperty("backgroundColor") ?
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+ parameters["backgroundColor"] : { r: 255, g: 255, b: 255, a: 1.0 };
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+
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+ /* 创建画布 */
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+ var canvas = document.createElement('canvas');
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+ var context = canvas.getContext('2d') as CanvasRenderingContext2D;
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+ // canvas.width = 0
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+ // canvas.height = 200
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+
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+ /* 字体加粗 */
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+ context.font = "Bold " + fontsize + "px " + fontface;
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+
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+ /* 获取文字的大小数据,高度取决于文字的大小 */
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+ var metrics = context.measureText(message);
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+ var textWidth = metrics.width;
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+
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+ /* 背景颜色 */
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+ context.fillStyle = "rgba(" + backgroundColor.r + "," + backgroundColor.g + ","
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+ + backgroundColor.b + "," + backgroundColor.a + ")";
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+
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+ /* 边框的颜色 */
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+ context.strokeStyle = "rgba(" + borderColor.r + "," + borderColor.g + ","
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+ + borderColor.b + "," + borderColor.a + ")";
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+ context.lineWidth = borderThickness;
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+
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+ /* 绘制圆角矩形 */
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+ this.roundRect(context, borderThickness / 2, borderThickness / 2, textWidth + borderThickness, fontsize * 1.4 + borderThickness, 6);
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+ // this.roundRect(context, borderThickness / 2, borderThickness / 2, 10000, 10000, 6);
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+ /* 字体颜色 */
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+ context.fillStyle = "rgba(0, 0, 0, 1.0)";
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+ context.fillText(message, borderThickness, fontsize + borderThickness);
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+ // context.fillRect(borderThickness / 2, borderThickness / 2, 10000, 10000)
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+ /* 画布内容用于纹理贴图 */
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+ var texture = new THREE.Texture(canvas);
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+ texture.needsUpdate = true;
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+
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+ var spriteMaterial = new THREE.SpriteMaterial({ map: texture, transparent:false });
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+ var sprite = new THREE.Sprite(spriteMaterial);
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+
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+ /* 缩放比例 */
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+ sprite.scale.set(10, 5, 1);
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+
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+ return sprite;
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+ }
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+
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+ /* 绘制圆角矩形 */
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+ roundRect(ctx, x, y, w, h, r) {
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+
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+ ctx.beginPath();
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+ ctx.moveTo(x + r, y);
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+ ctx.lineTo(x + w - r, y);
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+ ctx.quadraticCurveTo(x + w, y, x + w, y + r);
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+ ctx.lineTo(x + w, y + h - r);
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+ ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);
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+ ctx.lineTo(x + r, y + h);
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+ ctx.quadraticCurveTo(x, y + h, x, y + h - r);
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+ ctx.lineTo(x, y + r);
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+ ctx.quadraticCurveTo(x, y, x + r, y);
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+ ctx.closePath();
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+ ctx.fill();
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+ ctx.stroke();
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+
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+ }
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+
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+}
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+
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+export default UseThree;
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