three+webgl实现炫酷光影动画效果代码-html代码-BFW代码库

three+webgl实现炫酷光影动画效果代码

代码语言：html

所属分类：动画

代码描述：three+webgl实现炫酷光影动画效果代码

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>
body{
		margin:0;
		overflow:hidden;
		background-color:#000;
}
canvas{
		background-color:#000;
}
a{
  position:absolute;
  bottom:20px;
  right:20px;
  color:#ccc;
  text-decoration:none;
  font-family:Arial;
  font-size:10px;
}
</style>


</head>

<body>
  <canvas id="main"></canvas>



	<script type="x-shader/x-vertex" id="vertexshader">
		//
		// GLSL textureless classic 3D noise "cnoise",
		// with an RSL-style periodic variant "pnoise".
		// Author:  Stefan Gustavson (stefan.gustavson@liu.se)
		// Version: 2011-10-11
		//
		// Many thanks to Ian McEwan of Ashima Arts for the
		// ideas for permutation and gradient selection.
		//
		// Copyright (c) 2011 Stefan Gustavson. All rights reserved.
		// Distributed under the MIT license. See LICENSE file.
		// https://github.com/ashima/webgl-noise
		//
		vec3 mod289(vec3 x)
		{
		  return x - floor(x * (1.0 / 289.0)) * 289.0;
		}
		vec4 mod289(vec4 x)
		{
		  return x - floor(x * (1.0 / 289.0)) * 289.0;
		}
		vec4 permute(vec4 x)
		{
		  return mod289(((x*34.0)+1.0)*x);
		}
		vec4 taylorInvSqrt(vec4 r)
		{
		  return 1.79284291400159 - 0.85373472095314 * r;
		}
		vec3 fade(vec3 t) {
		  return t*t*t*(t*(t*6.0-15.0)+10.0);
		}

		// Classic Perlin noise
		float cnoise(vec3 P)
		{
		  vec3 Pi0 = floor(P); // Integer part for indexing
		  vec3 Pi1 = Pi0 + vec3(1.0); // Integer part + 1
		  Pi0 = mod289(Pi0);
		  Pi1 = mod289(Pi1);
		  vec3 Pf0 = fract(P); // Fractional part for interpolation
		  vec3 Pf1 = Pf0 - vec3(1.0); // Fractional part - 1.0
		  vec4 ix = vec4(Pi0.x, Pi1.x, Pi0.x, Pi1.x);
		  vec4 iy = vec4(Pi0.yy, Pi1.yy);
		  vec4 iz0 = Pi0.zzzz;
		  vec4 iz1 = Pi1.zzzz;
		  vec4 ixy = permute(permute(ix) + iy);
		  vec4 ixy0 = permute(ixy + iz0);
		  vec4 ixy1 = permute(ixy + iz1);
		  vec4 gx0 = ixy0 * (1.0 / 7.0);
		  vec4 gy0 = fract(floor(gx0) * (1.0 / 7.0)) - 0.5;
		  gx0 = fract(gx0);
		  vec4 gz0 = vec4(0.5) - abs(gx0) - abs(gy0);
		  vec4 sz0 = step(gz0, ve.........完整代码请登录后点击上方下载按钮下载查看