http://en.wikibooks.org/wiki/Designing_Sound_in_SuperCollider/Fire より。
http://en.wikibooks.org/wiki/Designing_Sound_in_SuperCollider/Fire より。
(~firegen = {var trigs, durscale, resfreq;var noise, hissing, crackles, lapping;// A common noise sourcenoise = WhiteNoise.ar;// Hissinghissing = HPF.ar(noise, 1000) * LFNoise2.kr(1).squared.squared;// Crackletrigs = Dust.kr(1);durscale = TRand.kr(1, 1.5, trigs); // vary duration between default 20ms and 30msresfreq = TExpRand.kr(100, 1000, trigs); // different resonant frequency for each onecrackles = noise * EnvGen.ar(Env.perc(0, 0.02, curve: 0), trigs, timeScale: durscale);crackles = crackles + BPF.ar(crackles, resfreq, 20);// Flamelapping = LeakDC.ar(LeakDC.ar(BPF.ar(noise, 30, 0.2) * 50).clip2(0.9)) * 0.5;// Combine them:([crackles, hissing, lapping] * [0.1, 0.3, 0.6]).sum * 3};~firegen.play)