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Wednesday, July 07, 2010

Furryball v2

// just type here
// and click "submit" when done

int frame = 0;

void setup() {
   size(800,400);
   background(255);
   drawVignettingEffect();
   smooth();
   fill(255,0,0,10);
   noStroke();
}

void draw() {
  frame++;
   //background(255,255,255,10);
   // Draw points
   for( int i = 0; i < 100; i++ ) {
     float distance = 150.0 - pow(abs(randomNonNormal()),1.0) * 30;
     float angle = random(0,2*PI);
     int x = int(distance * cos(angle));
     int y = int(distance * sin(angle));
   noStroke();
     ellipse(width/2+x,height/2+y,4,4);

stroke(204-distance, 102-distance, 0,40);
strokeWeight(1);     line(width/2+x,height/2+y,width/2+x*1.2+10*noise((frame/5)%10),height/2+y*1.2+10*noise((frame/5)%10));
   }

}


   float randomNonNormal()
{
  float x = 1.0, y = 1.0,
        s = 2.0; // s = x^2 + y^2
  while(s >= 1.0)
  {
    x = random(-1.0f, 1.0f);
    y = random(-1.0f, 1.0f);
    s = x*x + y*y;
  }
  return x * sqrt(-15.0f * log(s)/s);
}

  void drawVignettingEffect(){
  smooth();
  background(255);
  strokeWeight(180);
  noFill();
  stroke(180,180,180,5);
  translate(width/2,height/2);
  for (int i = 0; i < 300; i+=10){
    ellipse(0,0,max(width+i,height+i),max(width+i,height+i));
  }
  resetMatrix();
}