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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Interactive Graphics - Final Project</title>
<link rel="stylesheet" href="style/style.css">
<meta name="description" content="Interactive Graphics - Final Project - 2019">
<meta name="keywords" content="HTML, CSS, JavaScript, GLSL">
<meta name="author" content="JohnnyMDA">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="shortcut icon" href="img/ig_cube.ico">
<!-- STYLE -->
<link rel="stylesheet" type="text/css" href="style/style.css">
<link rel="stylesheet" type="text/css" href="style/player-style/styles.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Droid+Serif:400,400i,700|PT+Serif:400,400i&subset=latin-ext">
<link rel="stylesheet" href="style/player-style/font-awesome-4.3.0/css/font-awesome.min.css">
<!-- SCRIPTS -->
<script type="text/javascript" src="Common/three.min.js"> </script> <!-- JavaScript 3D library with a WebGL render -->
<script type="text/javascript" src="Common/OrbitControls.js"> </script> <!-- Camera orbit controls library for THREE.JS -->
<script type="text/javascript" src="Common/dat.gui.min.js"> </script> <!-- A GUI library for changing the variables values in JavaScript -->
<script type="text/javascript" src="Common/Stats.js"> </script> <!-- JavaScript Performance Monitor -->
<script src="Common/jquery-3.4.0.min.js"></script>
</head>
<body>
<!-- Player Container -->
<div id="container" class="disabled">
<div id="cover-art">
<div id="animate"></div> <!-- THREE.JS ANIMATION HERE -->
</div>
<div id="wave"></div> <!-- WAVESURFER HERE -->
<div id="control-bar">
<div class="player-control">
<div id="previous-button" title="Previous"> <i class="fa fa-fast-backward"> </i></div>
<div id="play-button" title="Play"> <i class="fa fa-play"> </i></div>
<div id="pause-button" title="Pause"> <i class="fa fa-pause"> </i></div>
<div id="stop-button" title="Stop"> <i class="fa fa-stop"> </i></div>
<div id="next-button" title="Next"> <i class="fa fa-fast-forward"> </i></div>
<div id="shuffle-button" title="Shuffle Off"> <i class="fa fa-random"> </i></div>
<div id="repeat-button" title="Repeat Off"> <i class="fa fa-refresh"><span>1</span></i></div>
</div>
<div id="playlist">
<div id="track-details" title="Show playlist">
<i class="fa fa-sort"></i>
<p id="track-desc">There are no tracks loaded in the player. Drag and Drop some from your PC or wait for loading the default ones.</p>
<p id="track-time">
<span id="current">-</span> / <span id="total">-</span>
</p>
</div>
<div id="expand-bar" class="hidden">
<ul id="list"></ul>
</div>
</div>
</div> <!-- END control-bar -->
<div id="drop-zone" class="hidden">Drag & Drop Audio Files Here</div>
<a id="help-icon" href="help.html" target="_blank">
<img id="help-icon"
src="img/help.png"
style="
position : absolute;
z-index : 1000;
top : 6px;
right : 6px;
height : 40px;
opacity : 0.5;
cursor : pointer;
"
>
</a>
</div>
<!-- Web Audio Player SCRIPTS -->
<script src="Common/id3-minimized.js"> </script>
<script src="Common/wavesurfer.min.js"> </script>
<script src="Common/player_script.js"> </script>
<!-- MAIN visualization SCRIPT -->
<script>
// set variables
var clock = new THREE.Clock(),
stats, // STATS.JS
renderer,
scene,
sceneHeight,
sceneWidth,
display, // Animation DOM element;
camera,
cameraFar,
cameraNear,
cameraAspect,
cameraViewAngle,
gui, // dat.GUI()
controls, // Orbit Controls;
sphere,
radius = 100,
rings = 64,
segments = 8,
alpha_texture_path = 'img/stripes_alpha_texture_3.png',
// Load the alpha texture image
alphaTexture= new THREE.TextureLoader().load(alpha_texture_path),
spiralSphereNorth,
spiralSphereSouth,
radiusSS = 16,
ringsSS = 64,
segmentsSS = 64,
lightNorthIntensity = 130,
lightNorthColor = 0xFC0000,
lightNorth,
lightSouth,
lightSouthColor = 0xFC0000,
lightSouthIntensity = 30,
waveColor = lightSouthColor,
offsetUpdateSpeed = 0.23, // Regulate the y-offset of the alpha texture at render time (scale the 'tdd' AVG);
numWaves = segments+3,
waves = [],
sampleRate = 0.04, // spline curve sample rate for wave lines building
wavesCreated = false,
changeWavesColor = false,
cubes,
cubeSize = 8,
cube_L_coef = 1.6,
cube_l_coef = 0.5,
cube_h_coef = 0.85,
numCubes,
particles_systems = [],
no_particle_space = 0.7 * 540,
analyser, // Web Audio API analyser node var;
numChannels,
tdd, // Time Domain Data (array);
fft, // Frequency Domain Data (from Fast Fourier Transform)(array);
peaks, // FFT based array (used for cubes' scaling);
fftSize = 2*segments * 2*rings, // Powers of 2 (default --> 2048) (lower --> faster);
// We use one array's spot for each cube on the sphere;
smoothingTimeConstantFFT = 0.0, // A more immediate response to the played audio;
deltaPeaks = 10.0, // Upperbound threshold for peaks update;
peaksDecreasingParam = 0.96, // Decreasing speed in time (at least one update per frame);
audio_path = "audio/", // Default audio track list to be loaded in the player;
audio_list = ["Aloe Blacc - I Need a Dollar.mp3", "Elvis Presley - Heartbreak Hotel.mp3", "Gun N' Roses - Sweet Child O' Mine.mp3", "Jeff Buckley - Hallelujah.mp3", "Jhon Lennon - Imagine.mp3", "Michael Jackson - Billie Jean.mp3", "Pink Floyd - Another brick in the wall.mp3", "Queen - Under Pressure.mp3", "R.E.M. - Losing My Religion.mp3", "Radiohead - Creep.mp3", "The Animals - The House of the Rising Sun.mp3", "The Eagles - Hotel California.mp3", "The Police - Every Breath You Take.mp3"]; // default songs list to be loaded //
// Initialize the visualization
window.onload=function()
{
init();
}
function init()
{
// Load the default songs in the playlist asynchronously
createDefaultPlaylist( audio_path, audio_list );
// Get the DOM element where to display
display = document.getElementById("animate");
// Set up the scene dimensions
sceneHeight = window.innerHeight;
sceneWidth = window.innerWidth;
// Set the camera properties
cameraFar = 10000;
cameraNear = 0.1;
cameraAspect = sceneWidth / sceneHeight;
cameraViewAngle = 65;
camera = new THREE.PerspectiveCamera(
cameraViewAngle,
cameraAspect,
cameraNear,
cameraFar
);
// Set the camera (initial) position
camera.position.z = no_particle_space; // move backward
// Create the renderer and camera (the WebGL one)s
renderer = new THREE.WebGLRenderer( {
antialias : true, // default false
alpha : false, // default false
depth : true, // default true
powerPreference : 'high-performance',
shadowMapEnable : true,
physicallyCorrectLights : true
} );
// START the (WebGL) renderer
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( sceneWidth, sceneHeight );
// Append the renderer DOM element on 'display'
display.appendChild( renderer.domElement );
// Create the scene
scene = new THREE.Scene();
// add some fog in the scene (black fog)
scene.fog = new THREE.FogExp2( 0x000000 , 0.00075 );
// Add the camera controls
controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.target.set( 0, 0, 0 );
controls.enableZoom = true;
controls.maxDistance = no_particle_space; // limit the zoom-out by default (Perspective Camera);
controls.zoomSpeed = 0.55;
controls.autoRotate = false;
controls.enabled = true;
controls.update();
//#########################//
//#### STATS.js ####//
//#########################//
// set up the Stats.js for statistic display
// and add them to the DOM
stats = new Stats();
stats.showPanel( 0 ); // 0: fps, 1: ms, 2: mb, 3+: custom
stats.dom.style.top = '3px';
stats.dom.style.left = '1px';
document.body.appendChild( stats.dom );
//#########################//
//#### EVENT LISTENERS ####//
//#########################//
// Update the scene on window resize dynamically
window.addEventListener("resize", function()
{
// Set up the scene dimensions
sceneHeight = window.innerHeight;
sceneWidth = window.innerWidth;
camera.aspect = sceneWidth / sceneHeight;
camera.updateProjectionMatrix();
renderer.setSize(sceneWidth, sceneHeight);
renderer.render( scene, camera );
console.log("DEBUG: window resized !\n");
});
// Keyboard Controls event listener (on key down)
document.addEventListener("keydown", setupKeyControls);
// computational resources optimization when out of view
// document.addEventListener('visibilitychange', function()
// {
// if (document.hidden)
// {
// // stop rendering && stop audio
// wavesurfer.pause();
// }else{
// // resume rendering && audio
// wavesurfer.play();
// }
// });
// 'audioprocess' event fires continuously as the audio plays.
wavesurfer.on('audioprocess', function(e) {
// update the 'fft' and 'tdd' arrays
analyser.getByteFrequencyData( fft );
analyser.getByteTimeDomainData( tdd );
// update the peaks array
onAudioAvailable(); // console.log("\nDEBUG:\n\nfft \t= " + fft + "\n\npeaks \t= " + peaks + "\n\ntdd \t= " + tdd + "\n\n");
});
// Creates the main sphere //
function createSphere()
{
var sphereFaces,
sphereMaterial,
cubeHalfSize = cubeSize / 2,
spaceRangePS = 1000;
//#########################//
//###### MAIN SPHERE ######//
//#########################//
sphere = new THREE.Mesh(
new THREE.SphereGeometry( radius, segments, rings),
new THREE.MeshNormalMaterial({
wireframe : false,
transparent : true,
flatShading : true,
opacity : 0.001,
fog : false // we have black fog in the scene
})
);
// Add the sphere to the scene
scene.add(sphere);
//###################//
//###### CUBES ######//
//###################//
// Get the faces of the sphere
sphereFaces = sphere.geometry.faces;
// New cubes array
cubes = [];
// Loop through every sphere's face
var cube, sphereFace, vertices, scaleVector, faceCentroid;
for (var i=0, len=sphereFaces.length; i < len; i++)
{
// Get the i-th sphere's face
sphereFace = sphereFaces[i];
// Create the i-th cube
cube = new THREE.Mesh(
new THREE.BoxGeometry(cube_L_coef * cubeSize, cube_l_coef * cubeSize, cube_h_coef * cubeSize),
new THREE.MeshStandardMaterial({
wireframe : false,
flatShading : true,
transparent : true,
opacity : 0.74, // 0.68
fog : false // we have black fog in the scene
})
);
// Get the cube vertexes (corners)
vertices = cube.geometry.vertices;
for (var v=0; v < vertices.length; v++)
{
// Shift each vertex in order to e able to scale
// the cube from the bottom rather then the center
vertices[v].z -= cubeHalfSize;
}
// Move the v-th cube to the i-th face's center
faceCentroid = new THREE.Vector3( 0, 0, 0 );
faceCentroid.add( sphere.geometry.vertices[ sphereFace.a ] );
faceCentroid.add( sphere.geometry.vertices[ sphereFace.b ] );
faceCentroid.add( sphere.geometry.vertices[ sphereFace.c ] );
faceCentroid.x = (faceCentroid.x < 0) ? faceCentroid.x - 5 : faceCentroid.x + 5;
faceCentroid.y = (faceCentroid.y < 0) ? faceCentroid.y - 5 : faceCentroid.y + 5;
faceCentroid.z = (faceCentroid.z < 0) ? faceCentroid.z - 5 : faceCentroid.z + 5;
faceCentroid.divideScalar( 3 );
cube.position.x = faceCentroid.x;
cube.position.y = faceCentroid.y;
cube.position.z = faceCentroid.z;
// Scale the cube so it's smaller near the poles of the sphere (visual effect)
scaleValue = Math.abs(cube.position.y) / (radius);
cube.scale.x = 1 - (scaleValue * 0.7);
cube.scale.y = 1 - (scaleValue * 0.7);
cube.scale.z = 1 - (scaleValue * 0.7);
cube.scaleValue = 1 - (scaleValue * 0.7);
// Make the cube look at the center of the sphere
cube.lookAt(sphere.position);
// Push the new cube in the cubes' array
cubes.push(cube);
// Add the new cube to the scene
sphere.add(cube);
};
numCubes = cubes.length;
cube_l_coef = cube_L_coef = cube_h_coef = 0.0;
//#########################//
//#### PARTICLE SYSTEM ####//
//#########################//
var v,
color,
size,
particles,
particleGeometry,
numParticles = 1600, // x 7 (final number)(different properties)
materials = [],
particlesParamsCollection = [// [hex color, size] //
[0xA31621, 3.05], // red
[0x3CB371, 3.15], // green
[0x235686, 3.55], // blue
[0xfefefe, 2.70], // white
[0xA31621, 2.05], // red
[0x3CB371, 2.25], // green
[0x235686, 2.65] // blue
];
// New geometry for the particles
particleGeometry = new THREE.Geometry();
// Create and add the particles' vectors to the geometry
var rand_x, rand_y, rand_z
for (var i=0; i < numParticles; i++)
{
do {
// at least one out of three needs to be greater then | no_particle_space |
rand_x = randomRangeNumber( randomOutOfTwo(0, no_particle_space), spaceRangePS ) * randomOutOfTwo(-1, 1);
rand_y = randomRangeNumber( randomOutOfTwo(0, no_particle_space), spaceRangePS ) * randomOutOfTwo(-1, 1);
rand_z = randomRangeNumber( randomOutOfTwo(0, no_particle_space), spaceRangePS ) * randomOutOfTwo(-1, 1);
} // rarely is doing more than 1-2 cycles here
while( (Math.abs(rand_x) < no_particle_space && Math.abs(rand_y) < no_particle_space && Math.abs(rand_z) < no_particle_space) );
v = new THREE.Vector3( rand_x, //(rand_x < 0) ? rand_x - no_particle_space : rand_x + no_particle_space,
rand_y, //(rand_y < 0) ? rand_y - no_particle_space : rand_y + no_particle_space,
rand_z //(rand_z < 0) ? rand_z - no_particle_space : rand_z + no_particle_space
); // (random points around 0 in spaceRangePS)
particleGeometry.vertices.push(v);
};
// create ONE PARTICLE SYSTEM for each [size, color]
for (var i=0, len=particlesParamsCollection.length; i < len; i++)
{
color = particlesParamsCollection[i][0];
size = particlesParamsCollection[i][1];
materials[i] = new THREE.PointsMaterial( {size : size, sizeAttenuation : true} );
materials[i].color.setHex(color);
particles = new THREE.Points( particleGeometry, materials[i] );
particles.rotation.x = randomOutOfTwo(-1, 1) * Math.random() * 1000 + (i+1);
particles.rotation.y = randomOutOfTwo(-1, 1) * Math.random() * 1000 + (i+1);
particles.rotation.z = randomOutOfTwo(-1, 1) * Math.random() * 1000 + (i+1);
particles_systems.push(particles);
scene.add(particles);
};
}; // --- END createSphere() --- //
// Create two animated spiral spheres to be included on the poles of the main sphere
function createSpiralSpheres()
{
// Create the sphere geometry;
var sphereGeometry = new THREE.SphereGeometry(radiusSS, segmentsSS, ringsSS);
// Create the material for the spiral sphere
var material = new THREE.MeshStandardMaterial({
side : THREE.DoubleSide, // both side rendering;
color : 0x000000,
lights : true,
transparent : true,
alphaTest : 0.5
});
// Load the alpha texture image
var alphaTexture = new THREE.TextureLoader().load(alpha_texture_path);
// Add the alpha texture to the material and setup it
material.alphaMap = alphaTexture;
material.alphaMap.magFilter = THREE.NearestFilter;
material.alphaMap.wrapT = THREE.RepeatWrapping;
material.alphaMap.repeat.y = 1;
spiralSphereNorth = new THREE.Mesh(sphereGeometry, material);
spiralSphereSouth = spiralSphereNorth.clone();
sphere.add(spiralSphereNorth);
sphere.add(spiralSphereSouth);
spiralSphereSouth.position.y += radius;
spiralSphereNorth.position.y -= radius;
spiralSphereNorth.rotation.x = Math.PI;
}; // --- END createSpiralSpheres() --- //
// Creates and adds a set of lines (splineCurves) to the main sphere
// reproducing the Time Domain Data of the audio ('tdd').
function createLines()
{
var deltaPhi = 2*Math.PI / numWaves,
nextAngle = deltaPhi / 2, // set the picks in the desired position (start-angle)
tdd_size = tdd.length,
pickRate = 32,
delta_x = (2*radius - 1.5 * radiusSS) / tdd_size * pickRate;
for (var j = 0; j < numWaves; j++)
{
var splineCurve,
linePoints,
curvePoints = [],
x_pos = 0 - radius + (1.5 / 2)*radiusSS;// sphere centered in (0, 0, 0)
for (var i = tdd_size - 1; i >= 0; i -= pickRate)
{
curvePoints.push(new THREE.Vector2( x_pos , 4*Math.random() - 2 )); // curvePoints.push(new THREE.Vector2( x_pos , 4*((tdd[j] - 255/2) / 10)));
x_pos += delta_x;
}
console.log("DEBUG:\n\tcurvePoints.length = " + curvePoints.length + "\t(pickRate = " + pickRate + ")\n\twaveColor = " + waveColor);
// Build the SplineCurve
splineCurve = new THREE.SplineCurve( curvePoints );
// Get enough points for the SplineCurve in order to build a smooth wave line (greater --> better --> costly)
linePoints = splineCurve.getPoints( tdd_size * sampleRate );
var waveGeometry = new THREE.BufferGeometry().setFromPoints( linePoints );
var waveMaterial = new THREE.LineBasicMaterial({
color : waveColor,
blending : THREE.NoBlending
});
// Create the final object to add to the scene
var wave = new THREE.Line( waveGeometry, waveMaterial );
// Put it on the correct axis
wave.rotateZ( Math.PI / 2 );
wave.rotateX( nextAngle );
wave.geometry.computeBoundingSphere();
// Save the wave for further use
waves.push(wave);
// Add it to the scene
sphere.add(wave);
// Get the next angle
nextAngle += deltaPhi;
}
wavesCreated = true;
}; // --- END createLines() --- //
//#########################//
//#### Audio Data ####//
//#########################//
// Log wavesurfer's warnings
wavesurfer.on('error', function(e) {
console.warn(e);
});
// Get the wavesurfer's analyser node object
analyser = wavesurfer.backend.analyser;
// 'channelCountMode' is set to 'explicit' on an analyserNode,
// so we can get the correct # of channels of the AudioNode in input
numChannels = analyser.channelCount;
console.log("DEBUG:\n\tnumChannels = " + numChannels);
// Set the FFT size (default fftSize=2048)(powers of 2)
// (fft scale to one channel size)
analyser.fftSize = fftSize * numChannels;
// FFT time averaging (0 meaning no time averaging). The default value is 0.8;
analyser.smoothingTimeConstant = smoothingTimeConstantFFT;
// Initialize the buffers for the Frequency and Time Domain Data:
// (it will be updated on 'onaudioprocess' event firing)
fft = new Uint8Array(analyser.frequencyBinCount);
tdd = new Uint8Array(analyser.fftSize); // this array should be the same length as the fftSize of the analyser;
// Array that will track smoothly the frequencies variations in time
// (it will be updated in onAudioAvailable() function, on 'onaudioprocess' event firing);
peaks = new Float32Array(fftSize);
console.log("DEBUG:\n\tfft-length \t\t= " + fft.length + "\n\tpeaks-length \t= " + peaks.length + "\n\ttdd-length \t\t= " + tdd.length);
// Run when audio data is available (after fft updates)
function onAudioAvailable()
{
// Compute and get the peaks' values of the audio signal
for (var i=0, fft_size = fft.length; i < fft_size; i++)
{
// Equalizer: attenuate low frequents and boost the high ones
//fft[i] *= -1 * Math.log((fft_size / 2 - 1.0*i) * (0.5 / fft_size / 2)) * fft_size;
if (peaks[i] < fft[i] + deltaPeaks) // to much vibration
{
// Assign a new peak value
peaks[i] = fft[i];
}
else
{
// decreasing the peak slowly till a new peaks is found
peaks[i] *= peaksDecreasingParam;
}
}
}; // --- END onAudioAvailable() --- //
// 'onKeyDown' events function
function setupKeyControls(e) {
// var x = camera.position.x,
// y = camera.position.y,
// z = camera.position.z;
switch (e.keyCode)
{
case 27: // ESC (Escape Key)
// Close the GUI controller if opened
if (gui) gui.close();
// Close the playlist if opened
var expandBar = $('#expand-bar');
if(expandBar.hasClass('hidden')){
// do nothing
}
else{
expandBar.addClass('hidden');
$(this).attr('title', 'Show Playlist');
}
break;
case 49: // 1 (Num. [1] key)
waveColor = getRandomColor();
changeWavesColor = true;
break;
case 80: // P ([P] Key)
// Toggle the Playlist
var expandBar = $('#expand-bar');
if(expandBar.hasClass('hidden')){
expandBar.removeClass('hidden');
$(this).attr('title', 'Hide Playlist');
}
else{
expandBar.addClass('hidden');
$(this).attr('title', 'Show Playlist');
}
break;
//default:
//console.log("DEBUG: pressed key: " + e.keyCode + " === " + e.code);
//break;
} // --- END switch --- //
// Update camera and look again at the origin
// camera.lookAt(scene.position);
// controls.update();
}; // --- END setupKeyControls(e)
// Add light to the spiral Spheres
function addLight()
{
lightNorth = new THREE.PointLight(lightNorthColor, lightNorthIntensity);
lightNorth.decay = 2;
lightSouth = new THREE.PointLight(lightSouthColor, lightSouthIntensity);
lightSouth.decay = 2;
spiralSphereNorth.add(lightNorth);
spiralSphereSouth.add(lightSouth);
lightNorth.position = spiralSphereNorth.position;
lightSouth.position = spiralSphereSouth.position;
}
// Create the (main) sphere
createSphere();
// Create the alpha texture animated spiral spheres
createSpiralSpheres();
// Add the lights to the spiral sphere
addLight();
// Create the wave lines
createLines();
// Call the animate() routine
animate();
// Call the GUI controller
guiController();
gui.closed = true;
}; // --- END init() --- //
function animate()
{
// Update the camera controls
// controls.update();
// New Animation Frame Request
window.requestAnimationFrame(animate);
// Call the main renderer
render();
// START STATS.js monitoring
stats.update();
}; // --- END animate() --- //
//##################################//
//#### //\\// RENDERER \\//\\ ####//
//##################################//
function render()
{
var tddAvg = 1.0,
time = Date.now() * 0.001;
//console.log("DEBUG:\ntime = " + time);
if (analyser) // "analyser" needs to be active here ! //
{
// Cubes scale's update as 'fft' variates //
var cube, sum;
for (var i=0, fft_size = peaks.length; i < numCubes; i++)
{
cube = cubes[i];
fft_index = i % fft_size;
// Scale the cube high as the i-th peaks amplitude (demo 1)
cube.scale.z = cube.scaleValue + cube_h_coef + ( (peaks[fft_index]) ? 1 + (3 * (fft[fft_index] / peaks[fft_index])) : 0);
cube.scale.y = cube.scaleValue + cube_L_coef;
cube.scale.x = cube.scaleValue + cube_l_coef;
}
// Lines points update as 'tdd' variates //
if (wavesCreated && tdd[0] > 0)
{
// Get the array average for spiral spheres' y-offset speed change
sum = tdd.reduce(function(a, b) { return a + b; });
tddAvg = sum / tdd.length;
updateLines();
}
}
// Spiral spheres alpha texture animation (y-offset variation)(buffer bouncing effect)
spiralSphereNorth.material.alphaMap.offset.y = offsetUpdateSpeed * tddAvg; // 10 * tddAvg * Math.cos(0.24 * time);
spiralSphereSouth.material.alphaMap.offset.y = offsetUpdateSpeed * tddAvg; // 10 * tddAvg * Math.cos(0.24 * time);
// Make the lights bouncing
lightNorth.position.y = spiralSphereNorth.position.y + offsetUpdateSpeed * tddAvg;
lightSouth.position.y = spiralSphereSouth.position.y - offsetUpdateSpeed * tddAvg;
// Sphere rotation (all the hierarchical structure of the sphere will rotate)
sphere.rotation.x = 0.7 * Math.sin(0.45 * time) + 1.72;
sphere.rotation.y = 0.6 * Math.sin(0.35 * time) + 2.31;
sphere.rotation.z = 0.5 * Math.cos(0.15 * time) + 1.57;
// Particle systems' rotation
for (var i = particles_systems.length - 1; i >= 0; i--) {
particles_systems[i].rotation.x = 0.57 * Math.cos(0.23 * time) + 0.11 * (i+1);
particles_systems[i].rotation.y = 0.55 * Math.cos(0.24 * time) + 0.12 * (i+1);
particles_systems[i].rotation.z = 0.53 * Math.sin(0.21 * time) + 0.13 * (i+1);
}
// Render the scene
renderer.render(scene, camera);
} // --- END render() --- //
function updateLines()
{
var deltaPhi = 2*Math.PI / numWaves,
nextAngle = deltaPhi / 2, // set the picks in the desired position (start-angle)
tdd_size = tdd.length,
pickRate = 32,
delta_x = (2*radius - 1.5 * radiusSS) / tdd_size * pickRate;
for (var i = 0; i < waves.length; i++)
{
var splineCurve,
linePoints,
curvePoints = [],
x_pos = 0 - radius + (1.5 / 2)*radiusSS; // sphere centered in (0, 0, 0)
oldBufferPositions = waves[i].geometry.attributes.position.array;
for (var j = tdd_size - 1; j >= 0; j -= pickRate)
{
curvePoints.push(new THREE.Vector2( x_pos , 4*((tdd[j] - 255/2)/10)));
x_pos += delta_x;
}
// Build the SplineCurve
splineCurve = new THREE.SplineCurve( curvePoints );
// Get enough points for the SplineCurve in order to build a smooth wave line (greater --> better --> costly)
linePoints = splineCurve.getPoints( tdd_size * sampleRate );
var waveGeometry = new THREE.BufferGeometry().setFromPoints( linePoints );
var waveMaterial = new THREE.LineBasicMaterial({
color : waveColor,
blending : THREE.NoBlending
});
// Create the final object to get the properties from
var wave = new THREE.Line( waveGeometry, waveMaterial );
// COPY the position arrays content from the new 'wave'
var newBufferpositions = wave.geometry.attributes.position.array;
for ( var index = 0, l = oldBufferPositions.length; index < l; index ++ ) {
oldBufferPositions[ index ] = newBufferpositions[ index ];
oldBufferPositions[ index ] = newBufferpositions[ index ];
oldBufferPositions[ index ] = newBufferpositions[ index ];
if (changeWavesColor)
{
waves[i].material.color = wave.material.color; // update colors on-demand;
}
}
waves[i].geometry.attributes.position.needsUpdate = true; // required after the first render
sphere.geometry.computeBoundingSphere();
}
changeWavesColor = false; // update colors on-demand;
};
//###############################//
//#### Helper Functions ####//
//###############################//
// Returns a random number between min (inclusive) and max (exclusive)
function randomRangeNumber(min, max) {
return Math.random() * (max - min) + min;
}
// Returns on of the two arguments randomly
function randomOutOfTwo(first, second) {
return (Math.random() < 0.5) ? first : second;
}
// Returns a random HEX color string
function getRandomColor() // string HEX color
{
var c = '#'+Math.floor(Math.random()*16777215).toString(16);
while (c.length < 7) // We need a HEX color (7 chars)
{
c += Math.floor( Math.random()*10 ).toString();
}
return c;
};
var controller = {
SET_DEFAULT : function(){
setDefaultParams();
},
changeWavesColor : function(){
waveColor = getRandomColor();
changeWavesColor = true;
},
ZOOM_OUT__ON_OFF : function(){
controls.maxDistance = controls.maxDistance === Infinity ? no_particle_space : Infinity;
if (controls.maxDistance === no_particle_space && Math.abs(camera.position.z) > no_particle_space) camera.position.z = no_particle_space;
},
Smoothness : 0.0,
PeaksTresholdUpdate : -55.5,
PeaksDecreasingRate : 1.0,
AudioVolume : 1.0,
cubeScale_L : -0.7,
cubeScale_l : -0.7,
cubeScale_h : -1.19,
NorthIntensity : 30,
NorthColor : "#FC0000",
SouthColor : "#FC0000",
SouthIntensity : 30,
WaveColor : lightNorthColor,
SetSideRengering : THREE.DoubleSide, // spiral spheres internal side rendering ( THREE.DoubleSide )
BounceSpeed : 0.23
};
// GUI controller
function guiController()
{
gui = new dat.GUI({
width : 300,
load : getPresets(),
preset : 'RockPreset',
closeOnTop : true,
closed : false
});
gui.remember(controller);
gui.add(controller, "SET_DEFAULT").name("SET DEFAULT");
var f1 = gui.addFolder('Audio'); f1.open();
f1.add(controller, "Smoothness", 0.0, 1.0, 0.01).onChange(function()
{
analyser.smoothingTimeConstant = controller.Smoothness;
});
f1.add(controller, "PeaksTresholdUpdate", -255.0, 255.0, 0.5).onChange(function()
{
deltaPeaks = controller.PeaksTresholdUpdate;
});
f1.add(controller, "PeaksDecreasingRate", 0.5, 1.0, 0.001).onChange(function()
{
peaksDecreasingParam = controller.PeaksDecreasingRate;
});
f1.add(controller, "AudioVolume", 0.0, 1.0, 0.01).onChange(function()
{
wavesurfer.setVolume(controller.AudioVolume);
}).name("Change Audio Volume");
var f2 = gui.addFolder('Colors and Light'); f2.open();
f2.add(controller, "changeWavesColor").name("Change Wave Lines Colors (Random) [Press 1]");
f2.addColor(controller, "WaveColor").onChange(function(){
waveColor = controller.WaveColor;
console.log("DEBUG : waveColor = " + controller.WaveColor);
changeWavesColor = true;
}).name("Wave Color");
f2.add(controller, "BounceSpeed", -2.0, 2.0, 0.01).onChange(function()
{
BounceSpeed = controller.BounceSpeed;
}).name("Bounce Speed");
f2.addColor(controller, "NorthColor").onChange(function(){
lightNorthColor = new THREE.Color( controller.NorthColor ).getHex();
lightNorth.color.setHex( lightNorthColor );
}).name("North Light Color");
f2.addColor(controller, "SouthColor").onChange(function(){
lightSouthColor = new THREE.Color( controller.SouthColor ).getHex();
lightSouth.color.setHex( lightSouthColor );
}).name("South Light Color");
f2.add(controller, "NorthIntensity", 0, 200, 0.5).onChange(function(){
lightNorthIntensity = controller.NorthIntensity;
lightNorth.intensity = lightNorthIntensity;
}).name("North Light Intensity");
f2.add(controller, "SouthIntensity", 0, 200, 0.5).onChange(function(){
lightSouthIntensity = controller.SouthIntensity;
lightSouth.intensity = lightSouthIntensity;
}).name("South Light Intensity");
f2.add(controller, "SetSideRengering", { Front: THREE.FrontSide, Back: THREE.BackSide, Double: THREE.DoubleSide }).onChange(function(){
spiralSphereNorth.material.side = controller.SetSideRengering;
spiralSphereSouth.material.side = controller.SetSideRengering;
}).name("Set Side Rendering (Material)");
var f3 = gui.addFolder('Cubes/Bars');
f3.add(controller, "cubeScale_L", -1.0, 1.0, 0.005).onChange(function()
{
cube_L_coef = controller.cubeScale_L;
});
f3.add(controller, "cubeScale_l", -1.0, 1.0, 0.005).onChange(function()
{
cube_l_coef = controller.cubeScale_l;
});
f3.add(controller, "cubeScale_h", -3.0, 3.0, 0.005).onChange(function()
{
cube_h_coef = controller.cubeScale_h;
});
gui.add(controller, "ZOOM_OUT__ON_OFF").name("ZOOM-OUT switch ON/OFF");
gui.preset = "Default"
}; // --- END guiController() --- //
// presetJSON: created from pressing the gear.
function getPresets() {
return {
"preset": "Default",
"closeOnTop": true,
"closed": false,
"remembered": {