Particle Motion trajectories

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5,899 Kb
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22,264

How do I make an particle motion trajectories?

More exploration into motions along spherical trajectories. Better motion and less overhead by pooling the tweens and not generating new ones. Not as fast as tween repeat and yoyo variations, but allows for more complex animation.. What is a particle motion trajectories? How do you make a particle motion trajectories? This script and codes were developed by Scott Niejadlik on 07 September 2022, Wednesday.

Particle Motion trajectories Previews

Particle Motion trajectories - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Particle Motion trajectories</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
<script src='http://cdnjs.cloudflare.com/ajax/libs/gsap/1.12.1/TweenMax.min.js'></script>
<script src='http://cdnjs.cloudflare.com/ajax/libs/three.js/r67/three.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Particle Motion trajectories - Script Codes CSS Codes

body {	overflow:hidden; background: #c3d5e2; /* Old browsers */
background: -moz-radial-gradient(center, ellipse cover, #c3d5e2 0%, #5c87aa 13%, #09397c 71%); /* FF3.6+ */
background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%,#c3d5e2), color-stop(13%,#5c87aa), color-stop(71%,#09397c)); /* Chrome,Safari4+ */
background: -webkit-radial-gradient(center, ellipse cover, #c3d5e2 0%,#5c87aa 13%,#09397c 71%); /* Chrome10+,Safari5.1+ */
background: -o-radial-gradient(center, ellipse cover, #c3d5e2 0%,#5c87aa 13%,#09397c 71%); /* Opera 12+ */
background: -ms-radial-gradient(center, ellipse cover, #c3d5e2 0%,#5c87aa 13%,#09397c 71%); /* IE10+ */
background: radial-gradient(ellipse at center, #c3d5e2 0%,#5c87aa 13%,#09397c 71%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#c3d5e2', endColorstr='#09397c',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
}

Particle Motion trajectories - Script Codes JS Codes

Spheres = {};
var local = Spheres;
local.wHalfX = window.innerWidth / 2;
local.wHalfY = window.innerHeight / 2;
local.rangeFact = 1;
local.mouseX = 0;
local.mouseY = 0;
local.materials = [];
local.matColors = [];
local.geometries = [];
local.particleSystems = [];
local.particleRotations = [];
local.particleGroupVelocity = [];
local.particleTweens = [];
local.markers = [{"id":"313","lat":"42.4882","lng":"-71.5871"}, {"id":"314","lat":"40.0107","lng":"-75.2363"}, {"id":"315","lat":"39.5717","lng":"-104.987"}, {"id":"316","lat":"37.6489","lng":"-122.214"}, {"id":"317","lat":"-32.3244","lng":"-56.999"}, {"id":"318","lat":"28.2269","lng":"30.1885"}, {"id":"319","lat":"52.643","lng":"-2.15524"}, {"id":"320","lat":"23.2816","lng":"113.553"}, {"id":"321","lat":"31.2784","lng":"121.155"}, {"id":"322","lat":"-30.0692","lng":"150.862"}, {"id":"323","lat":"-30.373","lng":"143.393"}, {"id":"324","lat":"7.44947","lng":"165.19"}, {"id":"325","lat":"58.8591","lng":"72.3777"}, {"id":"326","lat":"14.6897","lng":"5.58085"}, {"id":"327","lat":"-27.9169","lng":"34.7605"}];
local.coordinates = {"coordinates":[]};
local.init = function()
{ new Date().getTime(); local.container = document.createElement( 'div' ); document.body.appendChild( local.container ); local.camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 2, 10000 ); local.camera.position.z = 3100; local.scene = new THREE.Scene(); local.scene.fog = new THREE.FogExp2( 0x09397c, 0.00006 ); local.spinValues = {x:0,y:0,z:0,camDist:local.camera.position.z}; local.setSpinning(); local.generateLinesSystem(1000, 200); var i=0; var limit = 7; for (i=0;i<limit;++i) { local.generateParticleSystem(400+100*i, 350+Math.random()*100+20*(i*i+1), Math.random()*10+15); } local.renderer = new THREE.WebGLRenderer( { clearAlpha: 1,antialias:true, alpha: true} ); local.renderer.setSize( window.innerWidth, window.innerHeight ); local.renderer.autoClear = false; local.container.appendChild( local.renderer.domElement ); TweenMax.to(local,6,{rangeFact:1.2,yoyo:true,repeat:-1, ease:Quad.easeInOut}); local.render(); $(document).on('mousemove', local.onDocumentMouseMove); $(document).on('mousewheel', local.onDocumentMouseWheel); $(window).on('resize', local.onWindowResize);
};
/*	generate Particle sphere geometry points and set them to motion @nodes - number of particles to generate; @range - radius of sphere
*/
local.generateParticleGeometry = function(nodes, range) { var geometry = new THREE.Geometry(); if (nodes === undefined) nodes = 100; nodes = Math.floor(nodes); if (range === undefined) range = 500; var r = 500; var systemID = local.particleSystems.length-1; var tweenArr = []; var groupVelocity = Math.random()*6+0.2; local.particleGroupVelocity.push(groupVelocity); local.particleTweens[systemID] = tweenArr; for ( i = 0; i < nodes; i ++ ) { var vertex = new THREE.Vector3(); var node = i%local.markers.length-1; var initTheta = Math.random()*2*Math.PI; var initPhi = Math.random()*Math.PI; var theta = (local.markers[node]) ? local.markers[node].lat : 29.233; var phi = (local.markers[node]) ? local.markers[node].lng :75.5444; theta = (90+theta)*Math.PI/180;//+(Math.random()*2-1)/10; phi = -(phi)*Math.PI/180;//+(Math.random()*2-1)/10; var initX = range*Math.sin(initTheta)*Math.cos(initPhi);// var initY = range*Math.sin(initTheta)*Math.sin(initPhi);// var initZ = range*Math.cos(initTheta); vertex.x = initX;//Math.sin(i) * i; vertex.y = initY;// Math.cos(i) * i;//Math.random()*100; vertex.z = initZ;//Math.random()*1000; geometry.vertices.push( vertex ); var tartheta = theta + Math.sin(i)*2* Math.PI/180;// + var tarphi = phi + Math.cos(i)*Math.PI/180;//+ var tarX = range * Math.sin(tartheta)*Math.cos(tarphi); var tarY = range * Math.sin(tartheta)*Math.sin(tarphi); //var tarY = (range+i/10) * Math.sin(tartheta)*Math.sin(tarphi); var tarZ = range * Math.cos(tartheta); var tween; tweenArr.push(tween); tween = TweenMax.to(vertex,1,{ x:tarX/range, y:tarY/range, z:tarZ/range, ease:Linear.easeNone, //Quad.easeInOut, delay:i/nodes*4, onComplete:local.moveGeomVertex, onCompleteParams:[systemID,i, vertex,tartheta,tarphi,range] }); } local.geometries.push(geometry); return geometry;
};
/*local.initializeGeomPoints = function(tween, i, vertex, theta, phi, range) { }
*/
local.moveGeomVertex = function(systemID ,i, vertex,theta, phi, range) {	if (local.particleTweens[systemID][i-1] === undefined) return;	var distFact = local.particleGroupVelocity[systemID]; var tartheta = theta + Math.sin(i%local.markers.length-1)*distFact*2* Math.PI/180;// + Math.random()*Math.PI/180;// + 1*Math.PI/180;//Math.random()*2*Math.PI; var tarphi = phi + Math.cos(i%local.markers.length-1)*distFact*Math.PI/180;// + Math.random()*.2;// + Math.random()*Math.PI/180;// + 1*Math.PI/180;////Math.random()*Math.PI; //var tarX = (range+i/10) * Math.sin(tartheta)*Math.cos(tarphi); var tarX = range * local.rangeFact * Math.sin(tartheta) *Math.cos(tarphi); var tarY = range * local.rangeFact * Math.sin(tartheta) * Math.sin(tarphi); //var tarY = (range+i/10) * Math.sin(tartheta)*Math.sin(tarphi); var tarZ = range * local.rangeFact * Math.cos(tartheta); //var tarZ = Math.cos(tartheta)*(range+i/10); var tween = local.particleTweens[systemID][i-1];
tween.totalDuration(Math.random()); tween.updateTo({x:tarX,y:tarY,z:tarZ,delay:0,onCompleteParams:[systemID,i,vertex,tartheta,tarphi,range]},true);
}
local.generateParticleMaterial = function(pSize) { var material = new THREE.ParticleSystemMaterial({ color: '#'+Math.floor(Math.random()*16777215).toString(16), size: pSize, // Cross domain image issue, needs to be hosted locally in order to provide texture. //map: THREE.ImageUtils.loadTexture( // "https://i.imgur.com/5Ofb1jd.png" //), blending: THREE.AdditiveBlending, transparent: true }); local.materials.push(material); local.matColors.push({h:Math.random()*0.6+0.2,s:Math.random(),l:Math.random()*0.6+0.2}); var num = local.matColors.length-1; console.log(local.matColors); TweenMax.to(local.matColors[num],Math.random()+1,{h:Math.random()*0.6+0.2,s:Math.random(),l:Math.random()*0.6+0.2,onUpdate:local.updateMaterialColor,onUpdateParams:[num], repeat:-1, yoyo:true}); return material;
};
local.generateLineGeometry = function(nodes, range) { var geometry = new THREE.Geometry(); if (nodes === undefined) nodes = 100; nodes = Math.floor(nodes); if (range === undefined) range = 500; var r = 500; var divs = Math.random()*600 + 20; var variation = Math.random()*20+100; for ( i = 0; i < nodes; i ++ ) { var p; var theta = i/range;//*2*Math.PI // for (p=0; p< Math.random()*40; ++p) // { var vertex = new THREE.Vector3(); +Math.random()/variation; var node = i%local.markers.length; var phi = (Math.cos(i/50)*180)+Math.random(); var theta = (Math.tan(i/500)*180)+Math.random();//*Math.PI +Math.random();//(local.markers[node]) ? local.markers[node].lat : -29.233*2; theta = (90+theta)*Math.PI/180;//+(Math.random()*2-1)/10; phi = -(phi)*Math.PI/180; // var phi = (local.markers[node]) ? local.markers[node].lng :75.5444; //theta = (90+theta)*Math.PI/180;//+(Math.random()*2-1)/10; //phi = -(phi)*Math.PI/180;//+(Math.random()*2-1)/10; var initX = range * Math.sin(theta)*Math.cos(phi);// var initY = range * Math.sin(theta)*Math.sin(phi);// var initZ = range * Math.cos(theta); vertex.x = initX;//Math.sin(i) * i; vertex.y = initY;// Math.cos(i) * i;//Math.random()*100; vertex.z = initZ;//Math.random()*1000; geometry.vertices.push( vertex ); // } } local.geometries.push(geometry); return geometry;
};
local.generateLineMaterial = function() { var material = new THREE.LineBasicMaterial({ color: '#'+Math.floor(Math.random()*16777215).toString(16), linecap: 'round', linejoin: 'round', blending: THREE.AdditiveBlending, transparent: true }); local.materials.push(material); local.matColors.push({h:Math.random()*0.2+0.8,s:Math.random(),l:Math.random()*0.2+0.8}); var num = local.matColors.length-1; console.log(local.matColors); TweenMax.to(local.matColors[num],Math.random()+2,{h:Math.random()*0.2+0.8,s:Math.random(),l:Math.random()*0.2+0.8,onUpdate:local.updateMaterialColor,onUpdateParams:[num], repeat:-1, yoyo:true}); return material;
};
/*	update material color onUpdate of color tween.
*/
local.updateMaterialColor = function(item)
{ color = local.matColors[item];//item]; var h = color.h;//( 360 * ( color.h ) % 360 ) / 360; local.materials[item].color.setHSL( h, color.s, color.l );
};
/*	generate a new line mesh sphere @nodes - number of connection points connecting each line. @range - radius of sphere
*/
local.generateLinesSystem = function(nodes,range)
{ local.particleRotations.push({x:(Math.random()>0.5)? -1 : 1,y:(Math.random()>0.5)? -1 : 1}); var mat; var geom; var particles; mat = local.generateLineMaterial(); geom = local.generateLineGeometry(nodes,range); geom.verticesNeedUpate = true; particles = new THREE.Line( geom, mat ); particles.sortParticles = true; //spinParticles(); local.scene.add(particles); local.particleSystems.push(particles); // TweenMax.to(particles.rotation,1,{z:Math.random()*4-2,repeat:-1, yoyo:true, ease:Quad.easeInOut});
};
/*	Initialize a new Particle Sphere @nodes - number of particles @range - radius of particle sphere @pSize - size of individual particles
*/
local.generateParticleSystem = function(nodes,range,pSize)
{ local.particleRotations.push({x:(Math.random()>0.5)? -1 : 1,y:(Math.random()>0.5)? -1 : 1}); var mat; var geom; var particles; mat = local.generateParticleMaterial(pSize); geom = local.generateParticleGeometry(nodes,range); particles = new THREE.ParticleSystem( geom, mat ); particles.sortParticles = true; //spinParticles(); local.scene.add(particles); local.particleSystems.push(particles); // TweenMax.to(particles.rotation,1,{z:Math.random()*4-2,repeat:-1, yoyo:true, ease:Quad.easeInOut});
};
/*	Render call to redraw three js scene
*/
local.render = function() { var time = Date.now() * 0.00005; local.camera.position.x += ( local.mouseX - local.camera.position.x ) * 0.05; local.camera.position.y += ( -local.mouseY - local.camera.position.y ) * 0.05; local.camera.lookAt( local.scene.position ); local.renderer.render( local.scene, local.camera ); local.renderer.clear(false,true,false); //local.renderer.render(scene2,camera);*/
};
///////////////// Page INITIALIZATION //////////////////
/*local.getServerCoords = function()
{ if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else { // code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { console.log(xmlhttp.responseText); local.markers = JSON.parse(xmlhttp.responseText).coordinates; // document.getElementById("txtHint").innerHTML=xmlhttp.responseText; local.init(); local.animate(); } } xmlhttp.open("GET","actions/getCoords.php?q=",true); xmlhttp.send();
}*/
local.onDocumentMouseWheel = function(evt)
{ var d = evt.originalEvent.wheelDelta*10; TweenMax.to(local.camera.position,1,{z:'-='+d});
};
local.onDocumentMouseMove = function( evt ) { local.mouseX = (evt.clientX - local.wHalfX)*0.5; local.mouseY = (evt.clientY - local.wHalfY)*0.5; var i=0; var limit = local.particleSystems.length; for (i=0;i<limit;++i) { //console.log(i); var xSign = (i+1);// * local.particleRotations[i].x; var ySign = (i+1);// * local.particleRotations[i].y; TweenMax.to(local.particleSystems[i].rotation,1,{y:xSign * local.mouseX/180*Math.PI,x:ySign * local.mouseY/180*Math.PI}); }
};
local.setSpinning = function()
{ TweenMax.to(local.spinValues,10,{ x:'+='+(Math.random()*6-3), y:'+='+(Math.random()*6-3), z:'+='+(Math.random()*6-3), camDist:(Math.random()*3000+500), onUpdate:local.onSpinSpheres, onComplete: local.setSpinning, ease:Quad.easeInOut, })
}
local.onSpinSpheres = function()
{ var i=0; var limit = local.particleSystems.length; for (i=0;i<limit;++i) { //console.log(i); var xSign = 1;//(i+1) * var ySign = 1;//(i+1) * }
}
local.onWindowResize = function(event) { local.wHalfX = window.innerWidth / 2; local.wHalfY = window.innerHeight / 2; local.camera.aspect = window.innerWidth / window.innerHeight; local.camera.updateProjectionMatrix(); local.renderer.setSize( window.innerWidth, window.innerHeight ); //local.render();
};
local.animate = function()
{ requestAnimationFrame( local.animate ); local.render();
};
$( document ).ready(function() { local.init(); local.animate(); //local.getServerCoords(); // Commented out my initial pull from MySQL database of lat lng coords. subbed in dumby coords for remote ops.
});
Particle Motion trajectories - Script Codes
Particle Motion trajectories - Script Codes
Home Page Home
Developer Scott Niejadlik
Username sniejadlik
Uploaded September 07, 2022
Rating 4.5
Size 5,899 Kb
Views 22,264
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