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效果截图#xff08;这里不给动态了#xff0c;某音到处都是了#xff09;#xff1a; 源代码#xff1a;
script src…前些天发现了一个巨牛的人工智能学习网站通俗易懂风趣幽默忍不住分享一下给大家。点击跳转到网站。
效果截图这里不给动态了某音到处都是了 源代码
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/build/three.min.js/script
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/examples/js/postprocessing/EffectComposer.js/script
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/examples/js/postprocessing/RenderPass.js/script
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/examples/js/postprocessing/ShaderPass.js/script
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/examples/js/shaders/CopyShader.js/script
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/examples/js/shaders/LuminosityHighPassShader.js/script
script srchttps://cdn.jsdelivr.net/npm/three0.115.0/examples/js/postprocessing/UnrealBloomPass.js/scriptdiv idoverlayulli classtitleSelect Music/lilibutton classbtn idbtnA typebuttonSnowflakes Falling Down by Simon Panrucker/button/lilibutton classbtn idbtnB typebuttonThis Christmas by Dott/button/lilibutton classbtn idbtnC typebuttonNo room at the inn by TRG Banks/button/lilibutton classbtn idbtnD typebuttonJingle Bell Swing by Mark Smeby/button/lili classseparatorOR/liliinput typefile idupload hidden /label foruploadUpload File/label/li/ul
/divconst { 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 classtext-loadingPlease Wait.../div;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 div classtext-loadingPlease Wait.../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]);
}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 totalPoints; i) {const t Math.random();const y map(t, 0, 1, -8, 10);const ang map(t, 0, 1, 0, 6 * TAU) (TAU / 2) * (i % 2);const [z, x] polar(ang, map(t, 0, 1, 5, 0));const modifier map(t, 0, 1, 1, 0);positions.push(x rand(-0.3 * modifier, 0.3 * modifier));positions.push(y rand(-0.3 * modifier, 0.3 * modifier));positions.push(z rand(-0.3 * modifier, 0.3 * modifier));color.setHSL(map(i, 0, totalPoints, 1.0, 0.0), 1.0, 0.5);colors.push(color.r, color.g, color.b);phases.push(rand(1000));sizes.push(1);const mIndex map(i, 0, totalPoints, 1.0, 0.0);mIndexs.push(mIndex);}geometry.setAttribute(position,new THREE.Float32BufferAttribute(positions, 3).setUsage(THREE.DynamicDrawUsage));geometry.setAttribute(color, new THREE.Float32BufferAttribute(colors, 3));geometry.setAttribute(size, new THREE.Float32BufferAttribute(sizes, 1));geometry.setAttribute(phase, new THREE.Float32BufferAttribute(phases, 1));geometry.setAttribute(mIndex, new THREE.Float32BufferAttribute(mIndexs, 1));const tree new THREE.Points(geometry, shaderMaterial);const [px, py, pz] treePosition;tree.position.x px;tree.position.y py;tree.position.z pz;scene.add(tree);
}function addSnow(scene, uniforms) {const vertexShader attribute float size;attribute float phase;attribute float phaseSecondary;varying vec3 vColor;varying float opacity;uniform float time;uniform float step;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() {float t time* 0.0006;vColor color;vec3 p position;p.y map(mod(phasestep, 1000.0), 0.0, 1000.0, 25.0, -8.0);p.x sin(tphase);p.z sin(tphaseSecondary);opacity map(p.z, -150.0, 15.0, 0.0, 1.0);vec4 mvPosition modelViewMatrix * vec4( p, 1.0 );gl_PointSize size * ( 100.0 / -mvPosition.z );gl_Position projectionMatrix * mvPosition;};const fragmentShader uniform sampler2D pointTexture;varying vec3 vColor;varying float opacity;void main() {gl_FragColor vec4( vColor, opacity );gl_FragColor gl_FragColor * texture2D( pointTexture, gl_PointCoord ); };function createSnowSet(sprite) {const totalPoints 300;const shaderMaterial new THREE.ShaderMaterial({uniforms: {...uniforms,pointTexture: {value: new THREE.TextureLoader().load(sprite),},},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 phaseSecondaries [];const color new THREE.Color();for (let i 0; i totalPoints; i) {const [x, y, z] [rand(25, -25), 0, rand(15, -150)];positions.push(x);positions.push(y);positions.push(z);color.set(randChoise([#f1d4d4, #f1f6f9, #eeeeee, #f1f1e8]));colors.push(color.r, color.g, color.b);phases.push(rand(1000));phaseSecondaries.push(rand(1000));sizes.push(rand(4, 2));}geometry.setAttribute(position,new THREE.Float32BufferAttribute(positions, 3));geometry.setAttribute(color, new THREE.Float32BufferAttribute(colors, 3));geometry.setAttribute(size, new THREE.Float32BufferAttribute(sizes, 1));geometry.setAttribute(phase, new THREE.Float32BufferAttribute(phases, 1));geometry.setAttribute(phaseSecondary,new THREE.Float32BufferAttribute(phaseSecondaries, 1));const mesh new THREE.Points(geometry, shaderMaterial);scene.add(mesh);}const sprites [https://assets.codepen.io/3685267/snowflake1.png,https://assets.codepen.io/3685267/snowflake2.png,https://assets.codepen.io/3685267/snowflake3.png,https://assets.codepen.io/3685267/snowflake4.png,https://assets.codepen.io/3685267/snowflake5.png,];sprites.forEach((sprite) {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 totalPoints; i) {const [x, y, z] [rand(-25, 25), 0, rand(-150, 15)];positions.push(x);positions.push(y);positions.push(z);color.set(randChoise([#93abd3, #f2f4c0, #9ddfd3]));colors.push(color.r, color.g, color.b);sizes.push(1);}geometry.setAttribute(position,new THREE.Float32BufferAttribute(positions, 3).setUsage(THREE.DynamicDrawUsage));geometry.setAttribute(customColor,new THREE.Float32BufferAttribute(colors, 3));geometry.setAttribute(size, new THREE.Float32BufferAttribute(sizes, 1));const plane new THREE.Points(geometry, shaderMaterial);plane.position.y -8;scene.add(plane);
}function addListners(camera, renderer, composer) {document.addEventListener(keydown, (e) {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);
}
* {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;
}
