vue中加载three.js全景图

vue中加载three.js全景图

代码如下：

<template>
    <div class="VRScene">
        <div id="container"></div>
    </div>
</template>
<script>
import * as THREE from "three";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
export default {
    name: 'VRScene',
    data() {
        return {};
    },
    props:{
        imgUrl:{
            type:String,
            default:'/static/sushe_low.jpg'
        }
    },
    watch:{
        imgUrl(){
            let texture = new THREE.TextureLoader().load(imgUrl);
            this.material.map = new THREE.MeshBasicMaterial({ map: texture });
        }
    },
    mounted() {
        this.camera
        this.scene
        this.renderer
        this.isUserInteracting = false
        this.onMouseDownMouseX = 0
        this.onMouseDownMouseY = 0
        this.lon = 0
        this.onMouseDownLon = 0
        this.lat = 0
        this.onMouseDownLat = 0
        this.phi = 0
        this.theta = 0
        this.init()
        this.animate()
    },
    methods: {
        init() {

            var container, mesh;

            container = document.getElementById('container');

            this.camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 1100);
            this.camera.target = new THREE.Vector3(0, 0, 0);

            this.scene = new THREE.Scene();

            var geometry = new THREE.SphereBufferGeometry(500, 60, 40);
            // invert the geometry on the x-axis so that all of the faces point inward
            geometry.scale(-1, 1, 1);

            let texture = new THREE.TextureLoader().load('/static/sushe_low.jpg');
            this.material = new THREE.MeshBasicMaterial({ map: texture });
             this.material.needsUpdate = true
            mesh = new THREE.Mesh(geometry,  this.material);

            this.scene.add(mesh);

            this.renderer = new THREE.WebGLRenderer();
            this.renderer.setPixelRatio(window.devicePixelRatio);
            this.renderer.setSize(window.innerWidth, window.innerHeight);
            container.appendChild(this.renderer.domElement);

            document.addEventListener('mousedown', this.onPointerStart, false);
            document.addEventListener('mousemove', this.onPointerMove, false);
            document.addEventListener('mouseup', this.onPointerUp, false);
            document.addEventListener('wheel', this.onDocumentMouseWheel, false);
            document.addEventListener('touchstart', this.onPointerStart, false);
            document.addEventListener('touchmove', this.onPointerMove, false);
            document.addEventListener('touchend', this.onPointerUp, false);
                document.addEventListener( 'dragover', function ( event ) {
                    event.preventDefault();
                    event.dataTransfer.dropEffect = 'copy';
                }, false );
                document.addEventListener( 'dragenter', function () {
                    document.body.style.opacity = 0.5;
                }, false );
                document.addEventListener( 'dragleave', function () {
                    document.body.style.opacity = 1;
                }, false );
                document.addEventListener( 'drop', function ( event ) {
                    event.preventDefault();
                    var reader = new FileReader();
                    reader.addEventListener( 'load', function ( event ) {
                        material.map.image.src = event.target.result;
                        material.map.needsUpdate = true;
                    }, false );
                    reader.readAsDataURL( event.dataTransfer.files[ 0 ] );
                    document.body.style.opacity = 1;
                }, false );
            window.addEventListener('resize', this.onWindowResize, false);
        },
        onWindowResize() {
            this.camera.aspect = window.innerWidth / window.innerHeight;
            this.camera.updateProjectionMatrix();
            this.renderer.setSize(window.innerWidth, window.innerHeight);
        },
        onPointerStart(event) {
            this.isUserInteracting = true;
            var clientX = event.clientX || event.touches[0].clientX;
            var clientY = event.clientY || event.touches[0].clientY;
            this.onMouseDownMouseX = clientX;
            this.onMouseDownMouseY = clientY;
            this.onMouseDownLon = this.lon;
            this.onMouseDownLat = this.lat;
        },
        onPointerMove(event) {

            if (this.isUserInteracting === true) {
                var clientX = event.clientX || event.touches[0].clientX;
                var clientY = event.clientY || event.touches[0].clientY;
                this.lon = (this.onMouseDownMouseX - clientX) * 0.1 + this.onMouseDownLon;
                this.lat = (clientY - this.onMouseDownMouseY) * 0.1 + this.onMouseDownLat;
            }
        },
        onPointerUp() {
            this.isUserInteracting = false;
        },
        onDocumentMouseWheel(event) {
            var fov = this.camera.fov + event.deltaY * 0.05;
            this.camera.fov = THREE.MathUtils.clamp(fov, 10, 75);
            this.camera.updateProjectionMatrix();
        },
        animate() {
            requestAnimationFrame(this.animate);
            this.update();
        },
        update() {
            if (this.isUserInteracting === false) {
                this.lon += 0.1;
            }
            this.lat = Math.max(-85, Math.min(85, this.lat));
            this.phi = THREE.MathUtils.degToRad(90 - this.lat);
            this.theta = THREE.MathUtils.degToRad(this.lon);
            this.camera.target.x = 500 * Math.sin(this.phi) * Math.cos(this.theta);
            this.camera.target.y = 500 * Math.cos(this.phi);
            this.camera.target.z = 500 * Math.sin(this.phi) * Math.sin(this.theta);
            this.camera.lookAt(this.camera.target);
            this.renderer.render(this.scene, this.camera);

        }
    },
    beforeDestroy() {}
};
</script>
<style lang="less" scoped>
.VRScene {
    div {
         100%;
        height: 100%;
        margin-top: 200px;
    }
}
</style>

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