size( 350, 350 );
background(255);
float delta = radians(5);
translate( 120, 100 );
smooth();
for (int i=0; i<1000; i++){
  stroke( i/3,  i/2, 255-2*i, 50+2*i );
  strokeWeight( 200-i/5 );
  line( 0, 0, 120, 120 );
  rotate( delta );
  translate( 10, 2 );
  scale( 0.96 );
}