curtains实现webgl多彩渐变动画背景效果代码-html代码-BFW代码库

curtains实现webgl多彩渐变动画背景效果代码

代码语言：html

所属分类：背景

代码描述：curtains实现webgl多彩渐变动画背景效果代码

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>
#plane {
  position: absolute;
  inset: 0;
}
</style>


</head>

<body  >
  <script type="x-shader/x-vertex" id="vs">
  precision mediump float;
// 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;
// our texture matrix that will handle image cover
uniform mat4 uTextureMatrix0;
// pass your vertex and texture coords to the fragment shader
varying vec3 vVertexPosition;
varying vec2 vTextureCoord;
void main() {
  vec3 vertexPosition = aVertexPosition;
  gl_Position = uPMatrix * uMVMatrix * vec4(vertexPosition, 1.0);
  // set the varyings
  // here we use our texture matrix to calculate the accurate texture coords
  vTextureCoord = (uTextureMatrix0 * vec4(aTextureCoord, 0.0, 1.0)).xy;
  vVertexPosition = vertexPosition;
}
</script>
<script type="x-shader/x-fragment" id="fs">
  precision highp float;

uniform vec2 resolution;
uniform vec2 u_mouse;
uniform float uTime;

//
// Description : Array and textureless GLSL 2D/3D/4D simplex
//               noise functions.
//      Author : Ian McEwan, Ashima Arts.
//  Maintainer : stegu
//     Lastmod : 20201014 (stegu)
//     License : Copyright (C) 2011 Ashima Arts. All rights reserved.
//               Distributed under the MIT License. See LICENSE file.
//               https://github.com/ashima/webgl-noise
//               https://github.com/stegu/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.........完整代码请登录后点击上方下载按钮下载查看