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Butterfly.js

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 patch-1

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Butterfly.js

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var yoff=0;

var q=1;

var z=1;

var j=91;

function setup(){

createCanvas(windowWidth,windowHeight);

frameRate(25);

}

function draw(){

translate(width/2,height/2);

rotate(PI/2);

background(0);

stroke(225);

strokeWeight(3);

beginShape();

var xoff =0;

dx=0.02;

for(var l=0;l<10;l++)

{

for(var a=-PI/2;a<PI/2;a+=PI/100){

var n=noise(xoff,yoff);

var r=sin(a*2)*map(n,0,1,100,300);

var x= r*cos(a);

var y=sin(yoff)*r*sin(a);

xoff+=dx;

vertex(x,y);

}

if(j%90==0){

q=z=1;

}

if(q==z){

var a=random(0,255);

var b=random(0,255);

var c=random(0,255);

z=z+90;

}

j++;

fill(a,b,c,1000);

for(var a=PI/2;a<= (3*PI)/2;a+=PI/100){

var n=noise(xoff,yoff);

var r=sin(a*2)*map(n,0,1,100,300);

var x= r*cos(a);

var y= sin(yoff)*r*sin(a);

xoff-=dx;

vertex(x,y);

}

}

endShape();

yoff+=0.07;

}