HTML制作圣诞树，小白都会使用的教程。

 不管你学没学过编程，只要有电脑都可以完成。

1.  可以选择自己喜欢的歌曲播放
2.  视频中的圣诞树可以闪烁
3.  源码复制即可使用

       Musical Christmas Lights      * {   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;  }   .btn {   background-color: #161616;   border-radius: 10px;   color: #c5a880;   border: 1px solid #c5a880;   padding: 16px;   width: 300px;   margin-bottom: 16px;   line-height: 1.5;   cursor: pointer;  }  .separator {   font-weight: bold;   text-align: center;   width: 300px;   margin: 16px 0px;   color: #a07676;  }   .title {   color: #a07676;   font-weight: bold;   font-size: 1.25rem;   margin-bottom: 16px;  }   .text-loading {   font-size: 2rem;  }     window.console = window.console || function(t) {};       if (document.location.search.match(/type=embed/gi)) {   window.parent.postMessage("resize", "*");  }               

   • 请选择音乐
   • Snowflakes Falling Down by Simon Panrucker
   • This Christmas by Dott
   • No room at the inn by TRG Banks
   • Jingle Bell Swing by Mark Smeby
   • 或者
   • file
   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 = '等一下哈 马上来啦...'; const files = [ "https://files.freemusicarchive.org/storage-freemusicarchive-org/music/no_curator/Simon_Panrucker/Happy_Christmas_You_Guys/Simon_Panrucker_-_01_-_Snowflakes_Falling_Down.mp3", "https://files.freemusicarchive.org/storage-freemusicarchive-org/music/no_curator/Dott/This_Christmas/Dott_-_01_-_This_Christmas.mp3", "https://files.freemusicarchive.org/storage-freemusicarchive-org/music/ccCommunity/TRG_Banks/TRG_Banks_Christmas_Album/TRG_Banks_-_12_-_No_room_at_the_inn.mp3", "https://files.freemusicarchive.org/storage-freemusicarchive-org/music/ccCommunity/Mark_Smeby/En_attendant_Nol/Mark_Smeby_-_07_-_Jingle_Bell_Swing.mp3"]; const file = files[i]; 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 = '等一下哈 马上来啦...'; 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]); } 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; } `; const fragmentShader = ` varying vec3 vColor; varying float opacity; uniform sampler2D pointTexture; void main() { gl_FragColor = vec4( vColor, opacity ); gl_FragColor = gl_FragColor * texture2D( pointTexture, gl_PointCoord ); } `; const shaderMaterial = new THREE.ShaderMaterial({ uniforms: { ...uniforms, pointTexture: { value: new THREE.TextureLoader().load(`https://assets.codepen.io/3685267/spark1.png`) } }, vertexShader, fragmentShader, blending: THREE.AdditiveBlending, depthTest: false, transparent: true, vertexColors: true }); const geometry = new THREE.BufferGeometry(); const positions = []; const colors = []; const sizes = []; const phases = []; const mIndexs = []; const color = new THREE.Color(); for (let i = 0; i { createSnowSet(sprite); }); } function addPlane(scene, uniforms, totalPoints) { const vertexShader = ` attribute float size; attribute vec3 customColor; varying vec3 vColor; void main() { vColor = customColor; vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 ); gl_PointSize = size * ( 300.0 / -mvPosition.z ); gl_Position = projectionMatrix * mvPosition; } `; const fragmentShader = ` uniform vec3 color; uniform sampler2D pointTexture; varying vec3 vColor; void main() { gl_FragColor = vec4( vColor, 1.0 ); gl_FragColor = gl_FragColor * texture2D( pointTexture, gl_PointCoord ); } `; const shaderMaterial = new THREE.ShaderMaterial({ uniforms: { ...uniforms, pointTexture: { value: new THREE.TextureLoader().load(`https://assets.codepen.io/3685267/spark1.png`) } }, vertexShader, fragmentShader, blending: THREE.AdditiveBlending, depthTest: false, transparent: true, vertexColors: true }); const geometry = new THREE.BufferGeometry(); const positions = []; const colors = []; const sizes = []; const color = new THREE.Color(); for (let i = 0; i { const { x, y, z } = camera.position; console.log(`camera.position.set(${x},${y},${z})`); const { x: a, y: b, z: c } = camera.rotation; console.log(`camera.rotation.set(${a},${b},${c})`); }); window.addEventListener( "resize", () => { const width = window.innerWidth; const height = window.innerHeight; camera.aspect = width / height; camera.updateProjectionMatrix(); renderer.setSize(width, height); composer.setSize(width, height); }, false); }

   使用教程：1.在桌面创建一个文本文件2. 将代码复制粘贴到里面，然后保存鼠标右击文件，选择打开方式，任意选择一个浏览器打开即可。

   最后：如果大家喜欢希望点赞收藏。祝大家圣诞节快乐！