three实现三维粒子穿越时光隧道canvas动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：粒子

代码描述：three实现三维粒子穿越时光隧道canvas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">
    <title></title>
    <style>
        * {
      margin: 0;
      padding: 0;
    }
    html {
      height: 100%;
    }
    body {
      height: 100%;
      overflow: hidden;
    }
    canvas {
      position: absolute;
    }
    </style>

</head>

<body>

    <div id="canvas"></div>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.72.js"></script>
    <script>
        (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var exports = {
  getRandomInt: function(min, max){
    return Math.floor(Math.random() * (max - min)) + min;
  },
  getDegree: function(radian) {
    return radian / Math.PI * 180;
  },
  getRadian: function(degrees) {
    return degrees * Math.PI / 180;
  },
  getSpherical: function(rad1, rad2, r) {
    var x = Math.cos(rad1) * Math.cos(rad2) * r;
    var z = Math.cos(rad1) * Math.sin(rad2) * r;
    var y = Math.sin(rad1) * r;
    return [x, y, z];
  }
};

module.exports = exports;

},{}],2:[function(require,module,exports){
var Util = require('./util');

var exports = function(){
  var Camera = function() {
    this.rad1 = Util.getRadian(90);
    this.rad2 = Util.getRadian(0);
    this.range = 1000;
    this.obj;
  };
  
  Camera.prototype = {
    init: function(width, height) {
      this.obj = new THREE.PerspectiveCamera(35, width / height, 1, 10000);
      this.obj.up.set(0, 1, 0);
      this.setPosition();
      this.lookAtCenter();
    },
    reset: function() {
      this.setPosition();
      this.lookAtCenter();
    },
    resize: function(width, height) {
      this.obj.aspect = width / height;
      this.obj.updateProjectionMatrix();
    },
    setPosition: function() {
      var points = Util.getSpherical(this.rad1, this.rad2, this.range);
      this.obj.position.set(points[0], points[1], points[2]);
    },
    lookAtCenter: function() {
      this.obj.lookAt({
        x: 0,
        y: 0,
        z: 0
      });
    }
  };

  return Camera;
};

module.exports = exports();

},{"./util":8}],3:[function(require,module,exports){
module.exports = function(object, eventType, callback){
  var timer;

  object.addEventListener(eventType, function(event) {
    clearTimeout(timer);
    timer = setTimeout(function(){
      callback(event);
    }, 500);
  }, false);
};

},{}],4:[function(require,module,exports){
var exports = {
  friction: function(acceleration, mu, normal, mass) {
    var force = acceleration.clone();
    if (!normal) normal = 1;
    if (!mass) mass = 1;
    force.multiplyScalar(-1);
    force.normalize();
    force.multiplyScalar(mu);
    return force;
  },
  drag: function(acceleration, value) {
    var force = acceleration.clone();
    force.multiplyScalar(-1);
    force.normalize();
    force.multiplyScalar(acceleration.length() * value);
    return force;
  },
  hook: function(velocity, anchor, rest_length, k) {
    var force = velocity.clone().sub(anchor);
    var distance = force.length() - rest_length;
    force.normalize();
    force.multiplyScalar(-1 * k * distance);
    return force;
  }
};

module.exports = exports;

},{}],5:[function(require,module,exports){
var Util = require('./util');

var exports = function(){
  var HemiLight = function() {
    this.rad1 = Util.getRadian(60);
    this.rad2 = Util.getRadian(30);
    this.range = 1000;
    this.hex1 = 0xffffff;
    this.hex2 = 0x333333;
    this.intensity = 1;
    this.obj;
  };
  
  HemiLight.prototype = {
    init: function(hex1, hex2) {
      if (hex1) this.hex1 = hex1;
      if (hex2) this.hex2 = hex2;
      this.obj = new THREE.HemisphereLight(this.hex1, this.hex2, this.intensity);
      this.setPosition();
    },
    setPosition: function() {
      var points = Util.getSpherical(this.rad1, this.rad2, this.range);
      this.obj.position.set(points[0], points[1], points[2]);
    }
  };
  
  return HemiLight;
};

module.exports = exports();

},{"./util":8}],6:[function(require,module,exports){
var Util = require('./Util');
var debounce = require('./debounce');
var Camera = require('./camera');
var HemiLight = require('./hemiLight');
var Mover = require('./mover');

var body_width = document.body.clientWidth;
var body_height = document.body.clientHeight;
var last_time_activate = Date.now();

var canvas = null;
var renderer = null;
var scene = null;
var camera = null;
var light = null;

var movers_num = 10000;
var movers = [];
var points_geometry = null;
var points_material = null;
var points = null;

var textplate_geometry = null;
var textplate_material = null;
var textplate = null;

var antigravity = new THREE.Vector3(0, 30, 0);

var initThree = function() {
  canvas = document.getElementById('canvas');
  renderer = new THREE.WebGLRenderer({
    antialias: true,
    alpha: true
  });
  if (!renderer) {
    alert('Three.js failed to load');
  }
  renderer.setSize(body_width, body_height);
  canvas.appendChild(renderer.domElement);
  renderer.setClearColor(0x111111, 1.0);
  
  scene = new THREE.Scene();
  scene.fog = new THREE.Fog(0x000000, 800, 1600);
  
  camera = new Camera();
  camera.init(body_width, body_height);
  
  light = new HemiLight();
  light.init(0xffff99, 0x99ffcc);
  scene.add(light.obj);
};

var init = function() {
  initThree();
  buildPoints();
  renderloop();
  debounce(window, 'resize', function(event){
    resizeRenderer();
  });
};

var activateMover = fun.........完整代码请登录后点击上方下载按钮下载查看