javascript - Flame is not showing in THREE.js World -


i making flame using three.js , spark.js, when render world can't see flame , world empty. saw console error there no error regarding this. tried lot can't find out actual error. here code.

threexsparks = new threex.sparks({                     maxparticles : 400,                     counter : new sparks.steadycounter(300)                 });                 //threexsparks.position.x = 1000;                 // setup emitter                 //var emitter   = threexsparks.emitter();                  var counter = new sparks.steadycounter(500);                 var emitter = new sparks.emitter(counter);                  var initcolorsize = function() {                     this.initialize = function(emitter, particle) {                         particle.target.color().sethsv(0.3, 0.9, 0.4);                         particle.target.size(150);                     };                 };                  emitter.addinitializer(new initcolorsize());                 emitter.addinitializer(new sparks.position(new sparks.pointzone(new three.vector3(1000, 0, 0))));                 emitter.addinitializer(new sparks.lifetime(0, 0.8));                 emitter.addinitializer(new sparks.velocity(new sparks.pointzone(new three.vector3(0, 250, 00))));                  emitter.addaction(new sparks.age());                 emitter.addaction(new sparks.move());                 emitter.addaction(new sparks.randomdrift(1000, 0, 1000));                 emitter.addaction(new sparks.accelerate(0, -200, 0));

thanks

tere strange problems particles , webgl render. if you're using canvasrender. webgl not. in code forgot creating threejs objects particles. sparks.js allows interface particles. need create particles itself. can @ jsfiddle example. there use modified version of sparks.js library. changes able override vectorpool behaviour.

http://jsfiddle.net/yej4x/35/

main part there is:

var particlecount = 1800,     particles = new three.geometry(),               //store particle vertices     pmaterial = new three.particlebasicmaterial({         size: 10,         map: txture,                    //in jsfiddle create texture canvas         transparent: true       }); var particlesystem = new three.particlesystem(particles, pmaterial); //threejs particle system  //initialize our particles (and set dirty). sparkjs initialize later    for(var p = 0; p < particlecount; p++) {     v = new three.vector3(nummax,nummax,nummax);     v.isdirty=true;     particles.vertices.push(v); } sparks.vectorpool.__pools = particles.vertices; //initialize vectors pool

and there new vector pool sparksjs

sparks.vectorpool = {     __pools: [],     get: function() {         var ret = _.find(this.__pools, function(v){return v.isdirty});         ret.isdirty=false;         return ret;     },     release: function(v) {         v.isdirty=true;         v.set(nummax,nummax,nummax);     } };

of course must care count of partices used in sparks.js , precreated hands.

my sparkjs fork here: https://github.com/elephanter/sparks.js there fix problem lastest tweenjs , add other little changes described before.


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