2025-03-11 08:25:45 +00:00
|
|
|
<!--********************************************************************
|
|
|
|
|
* by jiawanlong
|
|
|
|
|
*********************************************************************-->
|
|
|
|
|
<!DOCTYPE html>
|
|
|
|
|
<html>
|
|
|
|
|
|
|
|
|
|
<head>
|
|
|
|
|
<meta charset="UTF-8" />
|
|
|
|
|
<style>
|
|
|
|
|
* {
|
|
|
|
|
margin: 0;
|
|
|
|
|
padding: 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
body,
|
|
|
|
|
.box {
|
|
|
|
|
width: 100%;
|
|
|
|
|
background-color: #1f1f1f;
|
|
|
|
|
height: 100%;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
|
|
|
|
</head>
|
|
|
|
|
|
|
|
|
|
<body>
|
|
|
|
|
<div class="box" id="box"></div>
|
|
|
|
|
<script type="importmap">
|
|
|
|
|
{
|
|
|
|
|
"imports": {
|
2025-03-19 03:00:22 +00:00
|
|
|
"three": "./../../libs/three/build/three.module.js",
|
|
|
|
|
"three/addons/": "./../../libs/three/examples/jsm/"
|
2025-03-11 08:25:45 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script type="module">
|
|
|
|
|
import * as THREE from 'three';
|
|
|
|
|
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
|
|
|
|
|
import { CSS3DRenderer, CSS3DObject, CSS3DSprite } from 'three/addons/renderers/CSS3DRenderer.js';
|
|
|
|
|
// 创建场景
|
|
|
|
|
const scene = new THREE.Scene();
|
|
|
|
|
let box = document.getElementById("box")
|
|
|
|
|
|
|
|
|
|
//创建相机对象
|
|
|
|
|
var camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 50, 1000);
|
|
|
|
|
camera.position.set(292, 109, 568); //设置相机位置
|
|
|
|
|
camera.lookAt(scene.position); //设置相机方向(指向的场景对象)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 光源
|
|
|
|
|
var point = new THREE.PointLight(0xffffff);
|
|
|
|
|
point.position.set(400, 200, 300); //点光源位置
|
|
|
|
|
scene.add(point); //点光源添加到场景中
|
|
|
|
|
var point1 = new THREE.PointLight(0xffffff);
|
|
|
|
|
point1.position.set(-400, -200, -300);
|
|
|
|
|
scene.add(point1);
|
|
|
|
|
var ambient = new THREE.AmbientLight(0x888888);
|
|
|
|
|
scene.add(ambient);
|
|
|
|
|
|
|
|
|
|
// 创建渲染器
|
|
|
|
|
const renderer = new THREE.WebGLRenderer();
|
|
|
|
|
renderer.setSize(window.innerWidth, window.innerHeight);
|
|
|
|
|
box.appendChild(renderer.domElement)
|
|
|
|
|
|
|
|
|
|
// 加载纹理
|
|
|
|
|
const textureLoader = new THREE.TextureLoader();
|
|
|
|
|
const spriteTexture = textureLoader.load('./yd.jpg');
|
|
|
|
|
|
|
|
|
|
// 创建精灵材质
|
|
|
|
|
const spriteMaterial = new THREE.SpriteMaterial({
|
|
|
|
|
map: spriteTexture,
|
|
|
|
|
useScreenCoordinates: false,
|
|
|
|
|
color: 0xffffff // 可以设置颜色
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
const group = new THREE.Group();
|
|
|
|
|
for (let i = 0; i < 10000; i++) {
|
|
|
|
|
// 精灵模型共享材质
|
|
|
|
|
const sprite = new THREE.Sprite(spriteMaterial);
|
|
|
|
|
group.add(sprite);
|
|
|
|
|
sprite.scale.set(5, 5, 1);
|
|
|
|
|
// 设置精灵模型位置，在长方体空间上上随机分布
|
|
|
|
|
const x = 1000 * (Math.random() - 0.5);
|
|
|
|
|
const y = 600 * Math.random();
|
|
|
|
|
const z = 1000 * (Math.random() - 0.5);
|
|
|
|
|
sprite.position.set(x, y, z)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
scene.add(group);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// 草地
|
|
|
|
|
var geometry1 = new THREE.PlaneGeometry(2000, 2000);
|
|
|
|
|
const texLoader = new THREE.TextureLoader();
|
|
|
|
|
const texture = texLoader.load('./cao.png');
|
|
|
|
|
texture.wrapS = THREE.RepeatWrapping;
|
|
|
|
|
texture.wrapT = THREE.RepeatWrapping;
|
|
|
|
|
texture.repeat.set(20, 20);
|
|
|
|
|
const material = new THREE.MeshLambertMaterial({
|
|
|
|
|
map: texture,
|
|
|
|
|
});
|
|
|
|
|
const mesh1 = new THREE.Mesh(geometry1, material);
|
|
|
|
|
mesh1.position.set(50, 50, 0);
|
|
|
|
|
scene.add(mesh1);
|
|
|
|
|
mesh1.rotateX(-Math.PI / 2);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function render() {
|
|
|
|
|
group.children.forEach(sprite => {
|
|
|
|
|
sprite.position.y -= 5;
|
|
|
|
|
if (sprite.position.y < 0) {
|
|
|
|
|
sprite.position.y = 600;
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
renderer.render(scene, camera)
|
|
|
|
|
requestAnimationFrame(render);
|
|
|
|
|
}
|
|
|
|
|
render();
|
|
|
|
|
|
|
|
|
|
const controls = new OrbitControls(camera, renderer.domElement);
|
|
|
|
|
controls.addEventListener('change', function () {
|
|
|
|
|
renderer.render(scene, camera);
|
|
|
|
|
});
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
</body>
|
|
|
|
|
|
|
|
|
|
</html>
|
