三维粒子空间3d旋转动态效果-html代码-BFW代码库

三维粒子空间3d旋转动态效果

代码语言：html

所属分类：粒子

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

<style>
html {
  height: 100%;
  background-image: -webkit-radial-gradient(ellipse farthest-corner at center top, #000d4d 0%, #000105 100%);
  background-image: radial-gradient(ellipse farthest-corner at center top, #000d4d 0%, #000105 100%);
  cursor: move;
}

body {
  width: 100%;
  margin: 0;
  overflow: hidden;
}
</style>
</head>
<body>
<canvas id="canv"></canvas>
<script>
var num = 200;
var w = window.innerWidth;
var h = window.innerHeight;
var max = 100;
var _x = 0;
var _y = 0;
var _z = 150;
var dtr = function(d) {
  return d * Math.PI / 180;
};

var rnd = function() {
  return Math.sin(Math.floor(Math.random() * 360) * Math.PI / 180);
};
var dist = function(p1, p2, p3) {
  return Math.sqrt(Math.pow(p2.x - p1.x, 2) + Math.pow(p2.y - p1.y, 2) + Math.pow(p2.z - p1.z, 2));
};

var cam = {
  obj: {
    x: _x,
    y: _y,
    z: _z
  },
  dest: {
    x: 0,
    y: 0,
    z: 1
  },
  dist: {
    x: 0,
    y: 0,
    z: 200
  },
  ang: {
    cplane: 0,
    splane: 0,
    ctheta: 0,
    stheta: 0
  },
  zoom: 1,
  disp: {
    x: w / 2,
    y: h / 2,
    z: 0
  },
  upd: function() {
    cam.dist.x = cam.dest.x - cam.obj.x;
    cam.dist.y = cam.dest.y - cam.obj.y;
    cam.dist.z = cam.dest.z - cam.obj.z;
    cam.ang.cplane = -cam.dist.z / Math.sqrt(cam.dist.x * cam.dist.x + cam.dist.z * cam.dist.z);
    cam.ang.splane = cam.dist.x / Math.sqrt(cam.dist.x * cam.d.........完整代码请登录后点击上方下载按钮下载查看