H.R. Giger 1940–2014

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Canvas.setpenopacity(0.25); const turtle = new Turtle(); const sf = 0.01; const iters = 100000; let x, y, sx, sy, i, j, si, sj, sine, len, l; function walk(i) { x = -100+200*Math.random(); y = -100+200*Math.random(); sx = sf*(100-x)*0.5; sy = sf*(100+y)*0.5; sine = (Math.cos(2*sx+2*Math.sin(sy)) + Math.sin(-5*sy+2*Math.cos(sx))) * Math.sin(6*Math.acos(sx)*Math.asin(sy)) * Math.cos(-21*Math.asin(sx)*Math.acos(sy)) turtle.penup(); turtle.goto(x,y); turtle.seth(sine*360); turtle.pendown(); len = 2+1*sine; for (l = len; l > 0.01; l/=2) { turtle.forward(l); turtle.left(30*sine); } return i < iters; }