void setup(){size(720,720);noFill();colorMode(HSB,1,1,1,1);}
float t=0;
void draw(){float W=width,H=W/2,i,r;background(0);translate(H,H);for(i=0;i<1;i+=.01){rotate(t);stroke(i,.3,1,1);r=W*i*cos((i+t)*TAU);arc(0,0,r,r,TAU*i*cos(t+i),TAU*i*sin(i+t));}t+=.001;}//#つぶやきProcessing #CreativeCoding #Processing