three实现三维舞台小人招手粒子聚光灯效果代码-html代码-BFW代码库

代码语言：html

所属分类：三维

代码描述：three实现三维舞台小人招手粒子聚光灯效果代码

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>
@import url("https://fonts.googleapis.com/css2?family=Asap&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  background: black;
  overscroll-behavior-x: none;
  overscroll-behavior-y: none;
}
body {
  font-family: "Asap", sans-serif;
  position: relative;
  width: 100vw;
  min-height: 100vh;
  text-align: center;
  overflow-x: hidden;
  color: white;
}

canvas {
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
  position: fixed;
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  z-index: 0;
}
</style>

  
  
</head>

<body >
  <!--
particle spotlight
https://codepen.io/wakana-k/pen/eYQjReV
@wakana-k
-->
<!-- three.js -->
<canvas id="canvas"></canvas>

<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/es-module-shims.1.6.2.js"></script>
<script type="importmap">
  {
    "imports": {      
      "three": "//repo.bfw.wiki/bfwrepo/js/module/three/build/154/three.module.js",
      "three/addons/": "//repo.bfw.wiki/bfwrepo/js/module/three/examples/154/jsm/"
    }
  }
</script>
  
      <script type="module">
/*!
particle spotlight
https://codepen.io/wakana-k/pen/eYQjReV
@wakana-k
*/
function e(e) {
  const t = new THREE.SpotLight(e, 10);
  return (
    t.castShadow = !0,
    t.angle = 0.3,
    t.penumbra = 0.2,
    t.decay = 2,
    t.distance = 50,
    t);

}

function t() {
  M.aspect = window.innerWidth / window.innerHeight,
  M.updateProjectionMatrix(),
  u.setSize(window.innerWidth, window.innerHeight);
}

function o(e) {
  new n.Tween(e.position).
  to(
  {
    x: 3 * Math.random() - 1.5,
    y: 1.5,
    z: 3 * Math.random() },

  2e3 * Math.random() + 2e3).

  easing(n.Easing.Quadratic.Out).
  start();
}

import * as THREE from "three";

import n from "three/addons/libs/tween.module.js";

import { OrbitControls as a } from "three/addons/controls/OrbitControls.js";

import * as BufferGeometryUtils from "three/addons/utils/BufferGeometryUtils.js";

let s,
i,
r,
l,
E,
d,
h,
c,
w,
p = [];

const T = -Math.PI / 1.95,
H = -Math.PI / 1.2;

let R = 0.05,
m = T;

const u = new THREE.WebGLRenderer({
  antialias: !0,
  canvas: canvas });


u.setPixelRatio(window.devicePixelRatio),
u.setSize(window.innerWidth, window.innerHeight),
u.useLegacyLights = !1;

const M = new THREE.PerspectiveCamera(
35,
window.innerWidth / window.innerHeight,
0.1,
500),

y = new a(M, u.domElement),
S = new THREE.Scene(),
b = new THREE.MeshPhongMaterial({
  color: 8421504 }),

g = new THREE.MeshPhongMaterial({
  color: 11184810 }),

G = new THREE.PlaneGeometry(20, 20),
f = new THREE.CylinderGeometry(0.3, 0.3, 0.05, 32),
v = new THREE.Mesh(G, b);

v.rotation.x = 0.5 * -Math.PI;

const P = new THREE.Mesh(f, g),
C = new THREE.AmbientLight(4473924),
z = e("deeppink"),
x = e("white"),
A = e("royalblue");

let I, L, k;

!function () {
  u.shadowMap.enabled = !0,
  u.shadowMap.type = THREE.PCFSoftShadowMap,
  M.position.set(0, 0.8, 4),
  z.position.set(2, 2, 2),
  x.position.set(0, 2, -2),
  A.position.set(-2, 2, -2),
  I = new THREE.SpotLightHelper(z),
  L = new THREE.SpotLightHelper(x),
  k = new THREE.SpotLightHelper(A),
  v.receiveShadow = !0,
  v.position.set(0, -0.5, 0),
  P.castShadow = !0,
  P.receiveShadow = !0,
  S.add(v),
  S.add(P),
  S.add(C),
  S.add(z, x, A),
  i = new THREE.PointsMaterial({
    size: 0.02,
    sizeAttenuation: !0,
    transparent: !0,
    opacity: 0.3,
    blending: THREE.AdditiveBlending });

  let e,
  o = new THREE.Vector3(),
  n = [];
  s = new THREE.BufferGeometry();
  for (let t = 0; t < 2e4; t++) {
    const t = Math.acos(THREE.MathUtils.randFloatSpread(2)),
    a = THREE.MathUtils.randFloatSpread(360);
    o.x = 1 * Math.sin(t) * Math.cos(a),
    o.y = 5 * Math.abs(1 * Math.sin(t) * Math.sin(a)) - 5,
    o.z = 1 * Math.cos(t),
    e = Math.random(),
    o.copy(o).multiplyScalar(e),
    n.push(o.x, o.y, o.z);
  }
  s.setAttribute("position", new THREE.Float32Buffer.........完整代码请登录后点击上方下载按钮下载查看