[three.js] Web3D first experience

What is? three.js

The reasons for the company's current project needs , I want to learn web Large screen visualization , In addition to showing some charts , We also need to show some buildings 3D Model , therefore webGL three.js
These two nouns entered the vocabulary of my brain . It's like opening the door to a new world , Discover the special effects of many websites (github The great earth of ) All are three.js
Written , Let's explore together

vite To start a vue3 project （ Just practice vue3+ts）

	npm init [email protected] my-vue-app --template vue

vite Really fast

npm install three.js

npm i three

// vue introduce 
import * as THREE from 'three';

Write one of mine according to the official website 3D Model

// demo1.js //


import * as THREE from 'three';
//  Create a scene 
const scene = new THREE.Scene();
//  Create a camera  （ Four parameters ：FOV（ The scope of the scene   Company ： degree ）, Aspect ratio ,near（ near ）, far（ far ））
const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
//  Create a renderer 
const renderer = new THREE.WebGLRenderer();
//  Sets the size of the renderer 
renderer.setSize( window.innerWidth/2,window.innerHeight/2 );
//  Hang the renderer to body On   This is what the renderer uses to show us the scene  <canvas>  Elements .
document.body.appendChild( renderer.domElement );

// The geometric 
const geometry = new THREE.BoxGeometry( 2, 2, 10 );
// material 
const material = new THREE.MeshBasicMaterial( {
     color: 0xFF0000 } );
// Data sets 
const cube = new THREE.Mesh( geometry, material );
scene.add( cube );

camera.position.z = 10;
// cube.rotation.x = 5;
// cube.rotation.y = 5;

function animate() {
    
    requestAnimationFrame( animate );
    cube.rotation.x += 0.01;
    cube.rotation.y += 0.01;
    renderer.render( scene, camera );
}

animate();

export default animate

<template>
</template>

<script setup lang="ts"> import animate from "./three/demo1.js"; animate(); </script>

<style> * {
       padding: 0; margin: 0; } #app {
       font-family: Avenir, Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-align: center; color: #2c3e50; margin-top: 60px; } </style>

effect