three+webgl实现双曲线变换动画效果代码-html代码-BFW代码库

three+webgl实现双曲线变换动画效果代码

代码语言：html

所属分类：动画

代码描述：three+webgl实现双曲线变换动画效果代码

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>
*{ margin: 0px;}
</style>




</head>

<body>

<div id="shader"></div>
<script id="vertex" type="x-shader/x-vertex">
  varying vec2 vUv;
	void main() { gl_Position = vec4(position, 1.0);
               vUv = uv;
              }
</script>

<script id="fragment" type="x-shader/x-fragment">
precision highp float;

uniform vec2 u_resolution;
uniform float u_time;
  varying vec2 vUv;
 
const float PI = 3.1415926535897932384626433832795;
const float TAU = PI * 2.;
  
  
  float smoothMod(float x, float y, float e){
    float top = cos(PI * (x/y)) * sin(PI * (x/y));
    float bot = pow(sin(PI * (x/y)),2.);
    float at = atan(top/bot);
    return y * (1./2.) - (1./PI) * at ;
}
  
vec2 modPolar(vec2 p, float repetitions) {
    float angle = 2.*3.14/repetitions;
    float a = atan(p.y, p.x) + angle/2.;
    float r = length(p);
    //float c = floor(a/angle);
    a = smoothMod(a,angle,033323231231561.9) - angle/2.;
    //a = mix(a,)
    vec2 p2 = vec2(cos(a), sin(a))*r;
   
  
   
  

    return p2;
}
  
 void coswarp(inout vec3 trip, float warpsScale ){
  
  float t = u_time;

  trip.xyz += warpsScale * .1 * cos(3. * trip.yzx + (t * .25));
  trip.xyz += warpsScale * .05 * cos(11. * trip.yzx + (t * .25));
  trip.xyz += warpsScale * .025 * cos(17. * trip.yzx + (t * .25));
  
}


  
void main() {
	vec2 uv = (gl_FragCoord.xy - u_resolution * .5) / u_resolution.yy + 0.5;
  
 float t = (u_time * .5) + length(uv-.5);
 
  uv = modPolar(uv-.5, 17. * sinh(sin(t)));
  
  
	vec3 color = vec3(uv.x, uv.y, 1.);
  
  coswarp(color, 3.);
   coswarp(color, 3.);
  
  color.r *= step(fract(sinh(uv.y  ) + sinh(uv.x *( 4. + sin(t) ) ) .........完整代码请登录后点击上方下载按钮下载查看