curtains实现冲击波动画效果代码-html代码-BFW代码库

curtains实现冲击波动画效果代码

代码语言：html

所属分类：动画

代码描述：curtains实现冲击波动画效果代码，鼠标点击跟随波纹动画。

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 {
    /* make the body fits our viewport */
    position: relative;
    width: 100%;
    height: 100vh;
    margin: 0;
    overflow: hidden;
}

#wrap-texture{
  position: relative;
}

#canvas {
    /* make the canvas wrapper fits the document */
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.plane {
    /* define the size of your plane */
    width: 100%;
    height: 100vh;
}

.plane img {
    /* hide the img element */
    display: none;
}

</style>
</head>
<body>

 <div id="wrap-texture">
  <!-- div that will hold our WebGL canvas -->
  <div id="canvas"></div>

  <!-- div used to create our plane -->
  <div class="plane">

    <!-- images that will be used as textures by our plane -->
    <img data-sampler="texture0" id="texture0" src="//repo.bfw.wiki/bfwrepo/image/5ee9f6f685b56.png" crossorigin="anonymous" />
    <img data-sampler="ripple" id="noise" src="//repo.bfw.wiki/bfwrepo/image/627afb04496aa.png" crossorigin="anonymous" />
  </div>
</div>

<script id="vs">
#ifdef GL_ES
    precision mediump float;
    #endif

    // those are the mandatory attributes that the lib sets
    attribute vec3 aVertexPosition;
    attribute vec2 aTextureCoord;

    // those are mandatory uniforms that the lib sets and that contain our model view and projection matrix
    uniform mat4 uMVMatrix;
    uniform mat4 uPMatrix;

    uniform mat4 texture0Matrix;
    uniform mat4 rippleMatrix;

    // if you want to pass your vertex and texture coords to the fragment shader
    varying vec3 vVertexPosition;
    varying vec2 vTextureCoord;
    varying vec2 vRippleTextureCoord;

    void main() {
        vec3 vertexPosition = aVertexPosition;

        gl_Position = uPMatrix * uMVMatrix * vec4(vertexPosition, 1.0);
  
        // set the varyings
        vTextureCoord = (texture0Matrix * vec4(aTextureCoord, 0., 1.)).xy;
        vRippleTextureCoord = (rippleMatrix * vec4(aTextureCoord, 0., 1.)).xy;

        vVertexPosition = vertexPosition;
    }
</script>
<script id="fs">
#ifdef GL_ES
    precision mediump float;
    #endif

    #define PI2 6.28318530718
    #define PI 3.14159265359
    #define BORDER_COL vec3(.2, .25, .3);
    #define S(a,b,n) smoothstep(a,b,n)

    uniform float uTime;
    uniform vec2 uReso;
    uniform vec2 uMouse;
    
    // get our varyings
    varying vec3 vVertexPosition;
    varying vec2 vTextureCoord;
    varying vec2 vRippleTextureCoord;

    // the uniform we declared inside our javascript

    // our texture sampler (default name, to use a different name please refer to the documentation)
    uniform sampler2D texture0;
    uniform sampler2D ripple;
  
    vec2 centerUV(vec2 coord, vec2 coord2){
      return (coord - .5 * coord2) / min(coord2.x, coord2.y);
    }

    void main(){
    // Sawtooth calc of time
    vec2 uvCoord = vTextureCoord;
    vec2 mousepos = uMouse; // 0 to 1 in X and Y
      
    float offset = (uTime - floor(uTime)) / uTime;
    float time = uTime * offset;

      // Wave design params
    vec3 waveParams = vec3(10.0, 0.8, 0.1 );

      // Find coordinate, flexible to different resolutions
      float maxSize = max(uReso.x, uReso.y);
      vec2 uv = uvCoord;

      // Find center, flexible to different resolutions
      vec2 center = uReso.xy / maxSize / 2.;

      // Distance to the center
      float .........完整代码请登录后点击上方下载按钮下载查看