效果：请关注抖音
代码：
<template>
<div>
<el-container>
<el-main>
<div class="box-card-left">
<div id="threejs" style="border: 1px solid red;position: relative;"></div>
</div>
</el-main>
</el-container>
</div>
</template>
<script>
// 引入轨道控制器扩展库OrbitControls.js
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader.js";
// 效果制作器
import { EffectComposer } from "three/examples/jsm/postprocessing/EffectComposer.js";
// 渲染通道
import { RenderPass } from "three/examples/jsm/postprocessing/RenderPass.js";
// 发光描边OutlinePass
import { OutlinePass } from "three/examples/jsm/postprocessing/OutlinePass.js";
import { CSS2DObject, CSS2DRenderer } from "three/examples/jsm/renderers/CSS2DRenderer.js";
export default {
data() {
return {
name: "",
scene: null,
camera: null,
renderer: null,
css2DRenderer: null,
effectComposer: null,
mesh: null,
geometry: null,
group: null,
material: null,
texture: null,
position: null,
outlinePass: null,
canvasWidth: 1000,
canvasHeight: 800,
color: [],
meshArr: [],
};
},
created() {},
mounted() {
this.name = this.$route.query.name;
this.init();
},
methods: {
goBack() {
this.$router.go(-1);
},
init() {
// 思路：有六个模型，分别代表人的头，身体，左右手臂，左右腿；当点击某一个模型时，高亮，并且显示标签名称
this.scene = new this.$three.Scene();
const axesHelper = new this.$three.AxesHelper(300);
this.scene.add(axesHelper);
this.group = new this.$three.Group();
this.group.translateY(150);
this.creatMesh_tou();
this.creatMesh_body();
this.creatMesh_hand();
this.creatMesh_foot();
this.scene.add(this.group);
// 创建相机对象
this.camera = new this.$three.PerspectiveCamera(60,1,0.01,2000);
this.camera.position.set(300,300,300);
this.camera.lookAt(0,0,0);
// 创建渲染器对象
this.renderer = new this.$three.WebGLRenderer();
this.renderer.setSize(this.canvasWidth, this.canvasHeight);
this.renderer.render(this.scene, this.camera);
window.document.getElementById("threejs").appendChild(this.renderer.domElement);
//
this.css2DRenderer = new CSS2DRenderer();
this.css2DRenderer.setSize(this.canvasWidth, this.canvasHeight);
this.css2DRenderer.render(this.scene, this.camera);
this.css2DRenderer.domElement.style.position = "absolute";
this.css2DRenderer.domElement.style.top = 0;
this.css2DRenderer.domElement.style.pointerEvents = 'none';
window.document.getElementById("threejs").appendChild(this.css2DRenderer.domElement);
// 创建空间轨道控制器对象
const controls = new OrbitControls(this.camera, this.renderer.domElement);
controls.addEventListener("change", () => {
this.renderer.render(this.scene, this.camera);
})
this.rayCasterFn();
this.effectComposerFn();
},
renderFun() {
// 调用后处理对象的render方法进行渲染，
this.effectComposer.render();
this.css2DRenderer.render(this.scene, this.camera);
window.requestAnimationFrame(this.renderFun);
},
rayCasterFn() {
// 画布添加事件监听
document.getElementById("threejs").addEventListener("click", e => {
this.scene.traverse(one => {
if(one.isCSS2DObject) {
this.scene.remove(one);
}
})
// 坐标转换
const p_x = e.offsetX;
const p_y = e.offsetY;
const x = (p_x / this.canvasWidth) * 2 - 1;
const y = -(p_y / this.canvasHeight) * 2 + 1;
// 创建射线拾取器对象
const raycaster = new this.$three.Raycaster();
// 射线计算
raycaster.setFromCamera(new this.$three.Vector2(x, y), this.camera);
// 射线交叉计算
const intersects = raycaster.intersectObjects(this.group.children);
if(intersects.length > 0) {
let obj = intersects[0].object;
this.outlinePass.selectedObjects = [obj];
let dom = this.createDiv(obj.name);
let css2_obj = new CSS2DObject(dom);
const wp = new this.$three.Vector3();
obj.getWorldPosition(wp)
css2_obj.position.set(wp.x, wp.y, wp.z);
this.scene.add(css2_obj);
this.renderFun();
} else {
this.outlinePass.selectedObjects = [];
}
})
},
effectComposerFn() {
// 创建后处理对象
this.effectComposer = new EffectComposer(this.renderer);
// 创建后处理通道
const renderPass = new RenderPass(this.scene, this.camera);
this.effectComposer.addPass(renderPass);
// 创建发光描边对象
this.outlinePass = new OutlinePass(new this.$three.Vector2(this.canvasWidth, this.canvasHeight), this.scene, this.camera);
this.outlinePass.edgeStrength = 20;
this.outlinePass.edgeThickness = 5;
this.outlinePass.visibleEdgeColor.set(0xffaadd);
this.outlinePass.pulsePeriod = 2;
this.effectComposer.addPass(this.outlinePass);
},
createDiv(name) {
let dom = document.createElement("div");
dom.style.padding = '5px 10px';
dom.style.border = '1px solid skyblue';
dom.style.color = 'red';
dom.style.background = '#2FF885';
dom.style.borderRadius = '15px';
dom.innerHTML = name;
// dom.innerHTML = "龙年大吉";
return dom;
},
creatMesh_tou() {
const geometry = new this.$three.SphereGeometry(30,64,64);
const material = new this.$three.MeshBasicMaterial({
color: 0xdfdf
});
const mesh = new this.$three.Mesh(geometry, material);
mesh.name = "头";
this.group.add(mesh);
},
creatMesh_body() {
const geometry = new this.$three.BoxGeometry(50,100,80);
const material = new this.$three.MeshBasicMaterial({
color: 0xdaafdf
});
const mesh = new this.$three.Mesh(geometry, material);
mesh.translateY(-80);
mesh.name = "身体";
this.group.add(mesh);
},
creatMesh_hand() {
const geometry = new this.$three.BoxGeometry(10,10,120);
const material = new this.$three.MeshBasicMaterial({
color: 0x11afdf
});
const mesh = new this.$three.Mesh(geometry, material);
mesh.translateY(-60);
mesh.translateZ(-100);
mesh.name = "右手";
this.group.add(mesh);
const mesh2 = mesh.clone();
mesh2.translateZ(200);
mesh2.name = "左手";
this.group.add(mesh2);
},
creatMesh_foot() {
const geometry = new this.$three.BoxGeometry(10,190,10);
const material = new this.$three.MeshBasicMaterial({
color: 0xD63DF0
});
const mesh = new this.$three.Mesh(geometry, material);
mesh.translateY(-220);
mesh.translateZ(-30);
mesh.name = "右腿";
this.group.add(mesh);
const mesh2 = mesh.clone();
mesh2.translateZ(60);
mesh2.name = "左腿";
this.group.add(mesh2);
},
},
};
</script>
//
<style lang="less" scoped>
.box-card-left {
display: flex;
align-items: flex-start;
flex-direction: row;
position: relative;
width: 100%;
.box-right {
img{
width:500px;
user-select: none;
}
}
}
</style>
