<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="./normalize.min.css">
<style>
*
{
box-sizing: border-box;
}
body
{
margin: 0;
height: 100vh;
overflow: hidden;
display: flex;
align-items: center;
justify-content: center;
background: #161616;
color: #c5a880;
font-family: sans-serif;
}
label
{
display: inline-block;
background-color: #161616;
padding: 16px;
border-radius: 0.3rem;
cursor: pointer;
margin-top: 1rem;
width: 300px;
border-radius: 10px;
border: 1px solid #c5a880;
text-align: center;
}
ul
{
list-style-type: none;
padding: 0;
margin: 0;
}
.separator
{
font-weight: bold;
text-align: center;
width: 300px;
margin: 16px 0px;
color: #a07676;
}
.title
{
color: #a07676;
font-weight: bold;
font-family: "华文彩云";
font-size: 32px;
margin-bottom: 16px;
}
.text-loading
{
font-size: 2rem;
}
.titi1{
font-family: "微软雅黑";
font-size: 26px;
}
</style>
<script>
window.console = window.console || function(t) {};
</script>
<script>
if (document.location.search.match(/type=embed/gi)) {
window.parent.postMessage("resize", "*");
}
</script>
</head>
<body translate="no" >
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/build/three.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/examples/js/postprocessing/EffectComposer.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/examples/js/postprocessing/RenderPass.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/examples/js/postprocessing/ShaderPass.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/examples/js/shaders/CopyShader.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/examples/js/shaders/LuminosityHighPassShader.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.115.0/examples/js/postprocessing/UnrealBloomPass.js"></script>
<div id="overlay">
<ul>
<li class="title">请选择音乐：</li>
<li>
<input type="file" id="upload" hidden />
<label for="upload" class="titi1">搭配自己喜欢的音乐并下载到本地就可以了</label>
</li>
</ul>
</div>
<script id="rendered-js" >
const { PI, sin, cos } = Math;
const TAU = 2 * PI;
const map = (value, sMin, sMax, dMin, dMax) => {
return dMin + (value - sMin) / (sMax - sMin) * (dMax - dMin);
};
const range = (n, m = 0) =>
Array(n).
fill(m).
map((i, j) => i + j);
const rand = (max, min = 0) => min + Math.random() * (max - min);
const randInt = (max, min = 0) => Math.floor(min + Math.random() * (max - min));
const randChoise = arr => arr[randInt(arr.length)];
const polar = (ang, r = 1) => [r * cos(ang), r * sin(ang)];
let scene, camera, renderer, analyser;
let step = 0;
const uniforms = {
time: { type: "f", value: 0.0 },
step: { type: "f", value: 0.0 } };
const params = {
exposure: 1,
bloomStrength: 0.9,
bloomThreshold: 0,
bloomRadius: 0.5 };
let composer;
const fftSize = 2048;
const totalPoints = 4000;
const listener = new THREE.AudioListener();
const audio = new THREE.Audio(listener);
document.querySelector("input").addEventListener("change", uploadAudio, false);
const buttons = document.querySelectorAll(".btn");
buttons.forEach((button, index) =>
button.addEventListener("click", () => loadAudio(index)));
function init() {
const overlay = document.getElementById("overlay");
overlay.remove();
scene = new THREE.Scene();
renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
camera = new THREE.PerspectiveCamera(
60,
window.innerWidth / window.innerHeight,
1,
1000);
camera.position.set(-0.09397456774197047, -2.5597086635726947, 24.420789670889008);
camera.rotation.set(0.10443543723052419, -0.003827152981119352, 0.0004011488708739715);
const format = renderer.capabilities.isWebGL2 ?
THREE.RedFormat :
THREE.LuminanceFormat;
uniforms.tAudioData = {
value: new THREE.DataTexture(analyser.data, fftSize / 2, 1, format) };
addPlane(scene, uniforms, 3000);
addSnow(scene, uniforms);
range(10).map(i => {
addTree(scene, uniforms, totalPoints, [20, 0, -20 * i]);
addTree(scene, uniforms, totalPoints, [-20, 0, -20 * i]);
});
const renderScene = new THREE.RenderPass(scene, camera);
const bloomPass = new THREE.UnrealBloomPass(
new THREE.Vector2(window.innerWidth, window.innerHeight),
1.5,
0.4,
0.85);
bloomPass.threshold = params.bloomThreshold;
bloomPass.strength = params.bloomStrength;
bloomPass.radius = params.bloomRadius;
composer = new THREE.EffectComposer(renderer);
composer.addPass(renderScene);
composer.addPass(bloomPass);
addListners(camera, renderer, composer);
animate();
}
function animate(time) {
analyser.getFrequencyData();
uniforms.tAudioData.value.needsUpdate = true;
step = (step + 1) % 1000;
uniforms.time.value = time;
uniforms.step.value = step;
composer.render();
requestAnimationFrame(animate);
}
function loadAudio(i) {
document.getElementById("overlay").innerHTML =
'<div class="text-loading">正在下载音乐，请稍等...</div>';
const loader = new THREE.AudioLoader();
loader.load(file, function (buffer) {
audio.setBuffer(buffer);
audio.play();
analyser = new THREE.AudioAnalyser(audio, fftSize);
init();
});
}
function uploadAudio(event) {
document.getElementById("overlay").innerHTML =
'<div class="text-loading">请稍等...</div>';
const files = event.target.files;
const reader = new FileReader();
reader.onload = function (file) {
var arrayBuffer = file.target.result;
listener.context.decodeAudioData(arrayBuffer, function (audioBuffer) {
audio.setBuffer(audioBuffer);
audio.play();
analyser = new THREE.AudioAnalyser(audio, fftSize);
init();
});
};
reader.readAsArrayBuffer(files[0]);
}
//添加圣诞树
function addTree(scene, uniforms, totalPoints, treePosition) {
const vertexShader = `
attribute float mIndex;
varying vec3 vColor;
varying float opacity;
uniform sampler2D tAudioData;
float norm(float value, float min, float max ){
return (value - min) / (max - min);
}
float lerp(float norm, float min, float max){
return (max - min) * norm + min;
}
float map(float value, float sourceMin, float sourceMax, float destMin, float destMax){
return lerp(norm(value, sourceMin, sourceMax), destMin, destMax);
}
void main() {
vColor = color;
vec3 p = position;
vec4 mvPosition = modelViewMatrix * vec4( p, 1.0 );
float amplitude = texture2D( tAudioData, vec2( mIndex, 0.1 ) ).r;
float amplitudeClamped = clamp(amplitude-0.4,0.0, 0.6 );
float sizeMapped = map(amplitudeClamped, 0.0, 0.6, 1.0, 20.0);
opacity = map(mvPosition.z , -200.0, 15.0, 0.0, 1.0);
gl_PointSize = sizeMapped * ( 100.0 / -mvPosition.z );
gl_Position = projectionMatrix * mvPosition;
精美HTML圣诞树特效+可自选本地音乐+加载本地音乐呈现圣诞树丛林效果.zip
需积分: 5 52 浏览量
2023-12-20
00:13:55
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精美HTML圣诞树特效+可自选本地音乐+加载本地音乐呈现圣诞树丛林效果.zip （2个子文件） 
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