three实现4000个三维小行星球体压缩在立方体内旋转动画效果代码-html代码-BFW代码库

three实现4000个三维小行星球体压缩在立方体内旋转动画效果代码

代码语言：html

所属分类：三维

代码描述：three实现4000个三维小行星球体压缩在立方体内旋转动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  

  
  
  
<style>
html, body {
  margin: 0;
  height: 100%;
  background: #1a1a1a;
}

#log {
  position: absolute;
  bottom: 0;
  right: 0;
  padding: 0.5em 0.75em;
  
  font-size: 12px;
  font-family: monospace;
  white-space: pre-line;
  text-align: right;
  color: grey;
}
</style>


  
  
</head>

<body translate="no">
  <div id="log">packing 4000 spheres...</div>
<canvas id="canvas"></canvas>
  
      <script  type="module">
import { Color, DirectionalLight, HemisphereLight, InstancedMesh, MeshLambertMaterial, Object3D, OrthographicCamera, PCFSoftShadowMap, Quaternion, Scene, SphereGeometry, Vector3, WebGLRenderer } from "//repo.bfw.wiki/bfwrepo/js/module/three/build/169/three.module.js";
const N = 4000;
const MIN_R = 0.005;
const MAX_R = 0.5;
const min = Math.min;
const abs = Math.abs;
//////// SETUP
const scene = new Scene();
scene.background = new Color(0.01, 0.01, 0.01);
let asp = innerWidth / innerHeight;
const camera = new OrthographicCamera(-asp, asp, 1, -1, -1, 1);
const renderer = new WebGLRenderer({ canvas });
renderer.setSize(innerWidth, innerHeight);
renderer.setPixelRatio(min(2, devicePixelRatio));
renderer.shadowMap.enabled = true;
renderer.shadowMap.type = PCFSoftShadowMap;
//////// LIGHT
const ambient = new HemisphereLight(new Color(1, 0.6, 0.2), new Color(0.2, 0.6, 1), 2);
scene.add(ambient);
const light = new DirectionalLight(new Color(1, 0.9, 0.8), 2);
light.position.set(-1, 1, 1);
scene.add(light);
light.castShadow = true;
light.shadow.mapSize.width = 1024;
light.shadow.mapSize.height = 1024;
light.shadow.camera.near = 0;
light.shadow.camera.far = 4;
light.shadow.camera.left = -1;
light.shadow.camera.right = 1;
light.shadow.camera.top = -1;
light.shadow.camera.bottom = 1;
light.shadow.bias = -0.001;
//////// INTSTANCED SPHERES
const mat = new MeshLambertMaterial();
const new_spheres = (ws, hs) => {
    const geom = new SphereGeometry(1, ws, hs);
    const spheres = new InstancedMesh(geom, mat, N);
    spheres.castShadow = true;
    spheres.receiveShadow = true;
    return spheres;
};
const spheres = .........完整代码请登录后点击上方下载按钮下载查看