2025-03-11 08:25:45 +00:00
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<!--********************************************************************
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* by jiawanlong
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*********************************************************************-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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<style>
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* {
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<script type="importmap">
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{
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"imports": {
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2025-03-19 03:00:22 +00:00
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"three": "./../../libs/three/build/three.module.js",
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"three/addons/": "./../../libs/three/examples/jsm/"
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2025-03-11 08:25:45 +00:00
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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const scene = new THREE.Scene();
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// 网格模型Mesh其实就一个一个三角形(面)拼接构成
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const geometry = new THREE.BufferGeometry();
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const vertices = new Float32Array([
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0, 0, 0,
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50, 0, 0,
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50, 0, 50,
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0, 0, 0,
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0, 0, 50,
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50, 0, 50,
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]);
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geometry.attributes.position = new THREE.BufferAttribute(vertices, 3);
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const colors = new Float32Array([
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1, 1, 1, //顶点1颜色
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1, 1, 0, //顶点2颜色
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1, 1, 1, //顶点3颜色
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1, 0, 0, //顶点4颜色
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0, 1, 1, //顶点5颜色
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0, 0, 1, //顶点6颜色
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]);
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geometry.attributes.color = new THREE.BufferAttribute(colors, 3)
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// 点颜色
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const material = new THREE.PointsMaterial({
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vertexColors: colors,
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size: 10.0
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})
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const points = new THREE.Points(geometry, material)
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scene.add(points)
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// 网格颜色
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const mesh = new THREE.Mesh(geometry, material)
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scene.add(mesh)
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// AxesHelper
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const axesHelper = new THREE.AxesHelper(150);
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scene.add(axesHelper);
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// 相机
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const camera = new THREE.PerspectiveCamera(); //相机
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camera.position.set(200, 200, 200); //相机位置
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camera.lookAt(0, 0, 0); //相机观察位置
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// 渲染器
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const renderer = new THREE.WebGLRenderer(); // 创建渲染器
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renderer.setSize(window.innerWidth, window.innerHeight); //渲染区域
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renderer.render(scene, camera); //执行渲染
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document.body.appendChild(renderer.domElement);
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const controls = new OrbitControls(camera, renderer.domElement);
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controls.addEventListener('change', function () {
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renderer.render(scene, camera);
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});
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</script>
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</body>
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</html>
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