canvas实现webgl跟随鼠标可调节参数的小鬼交互效果代码-html代码-BFW代码库

canvas实现webgl跟随鼠标可调节参数的小鬼交互效果代码

代码语言：html

所属分类：动画

代码描述：canvas实现webgl跟随鼠标可调节参数的小鬼交互效果代码

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, html {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #2C3E50;
}

canvas#ghost {
    position: fixed;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    z-index: 10000;
    pointer-events: none;
}

.page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    font-size: 4vw;
    text-shadow: 0 0 5px #000000;
}

.lil-gui {
    --width: 300px;
    max-width: 90%;
    --widget-height: 20px;
    font-size: 15px;
    --input-font-size: 15px;
    --padding: 10px;
    --spacing: 10px;
    --slider-knob-width: 5px;
    --background-color: rgba(5, 0, 15, .8);
    --widget-color: rgba(255, 255, 255, .3);
    --focus-color: rgba(255, 255, 255, .4);
    --hover-color: rgba(255, 255, 255, .5);
    --font-family: monospace;
    z-index: 1;
}
</style>


  
  
</head>

<body >
  <div class="page">
    WebGL Ghost Cursor
</div>

<canvas id="ghost"></canvas>


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

    varying vec2 vUv;
    attribute vec2 a_position;

    void main() {
        vUv = .5 * (a_position + 1.);
        gl_Position = vec4(a_position, 0.0, 1.0);
    }
</script>


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

    varying vec2 vUv;
    uniform float u_time;
    uniform float u_ratio;
    uniform float u_size;
    uniform vec2 u_pointer;
    uniform float u_smile;
    uniform vec2 u_target_pointer;
    uniform vec3 u_main_color;
    uniform vec3 u_border_color;
    uniform float u_flat_color;
    uniform sampler2D u_texture;

    #define TWO_PI 6.28318530718
    #define PI 3.14159265358979323846

    vec3 mod289(vec3 x) { return x - floor(x * (1.0 / 289.0)) * 289.0; }
    vec2 mod289(vec2 x) { return x - floor(x * (1.0 / 289.0)) * 289.0; }
    vec3 permute(vec3 x) { return mod289(((x*34.0)+1.0)*x); }
    float snoise(vec2 v) {
        const vec4 C = vec4(0.211324865405187, 0.366025403784439, -0.577350269189626, 0.024390243902439);
        vec2 i = flo.........完整代码请登录后点击上方下载按钮下载查看