mirror of
https://github.com/jiawanlong/Cesium-Examples.git
synced 2025-07-04 15:17:36 +00:00
129 lines
4.0 KiB
HTML
129 lines
4.0 KiB
HTML
<!--********************************************************************
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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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}
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body,
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.box {
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width: 100%;
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background-color: #1f1f1f;
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height: 100%;
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}
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</style>
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</head>
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<body>
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<div class="box" id="box"></div>
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<script type="importmap">
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{
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"imports": {
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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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}
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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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import { CSS3DRenderer, CSS3DObject, CSS3DSprite } from 'three/addons/renderers/CSS3DRenderer.js';
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// 创建场景
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const scene = new THREE.Scene();
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let box = document.getElementById("box")
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//创建相机对象
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var camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 50, 1000);
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camera.position.set(292, 109, 568); //设置相机位置
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camera.lookAt(scene.position); //设置相机方向(指向的场景对象)
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// 光源
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var point = new THREE.PointLight(0xffffff);
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point.position.set(400, 200, 300); //点光源位置
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scene.add(point); //点光源添加到场景中
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var point1 = new THREE.PointLight(0xffffff);
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point1.position.set(-400, -200, -300);
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scene.add(point1);
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var ambient = new THREE.AmbientLight(0x888888);
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scene.add(ambient);
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// 创建渲染器
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const renderer = new THREE.WebGLRenderer();
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renderer.setSize(window.innerWidth, window.innerHeight);
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box.appendChild(renderer.domElement)
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// 加载纹理
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const textureLoader = new THREE.TextureLoader();
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const spriteTexture = textureLoader.load('./yd.jpg');
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// 创建精灵材质
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const spriteMaterial = new THREE.SpriteMaterial({
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map: spriteTexture,
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useScreenCoordinates: false,
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color: 0xffffff // 可以设置颜色
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});
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const group = new THREE.Group();
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for (let i = 0; i < 10000; i++) {
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// 精灵模型共享材质
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const sprite = new THREE.Sprite(spriteMaterial);
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group.add(sprite);
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sprite.scale.set(5, 5, 1);
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// 设置精灵模型位置，在长方体空间上上随机分布
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const x = 1000 * (Math.random() - 0.5);
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const y = 600 * Math.random();
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const z = 1000 * (Math.random() - 0.5);
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sprite.position.set(x, y, z)
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}
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scene.add(group);
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// 草地
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var geometry1 = new THREE.PlaneGeometry(2000, 2000);
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const texLoader = new THREE.TextureLoader();
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const texture = texLoader.load('./cao.png');
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texture.wrapS = THREE.RepeatWrapping;
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texture.wrapT = THREE.RepeatWrapping;
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texture.repeat.set(20, 20);
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const material = new THREE.MeshLambertMaterial({
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map: texture,
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});
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const mesh1 = new THREE.Mesh(geometry1, material);
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mesh1.position.set(50, 50, 0);
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scene.add(mesh1);
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mesh1.rotateX(-Math.PI / 2);
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function render() {
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group.children.forEach(sprite => {
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sprite.position.y -= 5;
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if (sprite.position.y < 0) {
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sprite.position.y = 600;
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}
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});
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renderer.render(scene, camera)
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requestAnimationFrame(render);
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}
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render();
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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> |