smoke.cpp

static int iter = 0;
for(int j = 0; j < 6; j++){
    for(int i = 0; i < texture->getContentSize().width; i++){
      float width = 127;
      float red = sin(.05*i*PerlinNoise::noise(i*.005+iter*.005*j, i*.01) + 0) * width + 128;
      float grn = sin(.05*i*PerlinNoise::noise(i*.005+iter*.005*j, i*.01) + 2) * width + 128;
      float blu = sin(.05*i*PerlinNoise::noise(i*.005+iter*.005*j, i*.01) + 4) * width + 128;
      ccColor4B color = ccc4(red, grn, blu, 255);
      texture->setPixelAt(CCPoint(i+.03*(texture->getContentSize().width-i)*PerlinNoise::noise((i+iter)*.03, 10*j),
                                  lineHeight+(j*(texture->getContentSize().height/6))+((texture->getContentSize().width-i)*.4)*
                                  PerlinNoise::noise((i*.7+iter)*.03, 10*j)),
                          color);
    }
}
iter++;