three实现三维龙卷风飘带转动动画效果代码-html代码-BFW代码库

three实现三维龙卷风飘带转动动画效果代码

代码语言：html

所属分类：动画

代码描述：three实现三维龙卷风飘带转动动画效果代码

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>

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

    <style>
        body{height:100vh;width:100vw;padding:0;margin:0;overflow:hidden}
    </style>

</head>

<body>

    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/three.84.js"></script>
    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/OrbitControls.min.js"></script>
    <div></div>

    <script type="text/javascript">
        const vertexShader = `
        varying vec2 vUv;
        
        void main() {
        vUv = uv;
        gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
        }
        `;
        
        const fragmentShader = `
        varying vec2 vUv;
        
        uniform float uTime;
        
        void main() {
        float len = 0.15;
        float falloff = 0.1;
        float p = mod(uTime * 0.25, 1.0);
        float alpha = smoothstep(len, len - falloff, abs(vUv.x - p));
        float width = smoothstep(len * 2.0, 0.0, abs(vUv.x - p)) * 0.5;
        alpha *= smoothstep(width, width .........完整代码请登录后点击上方下载按钮下载查看