void generateGrid(){

  ///Generate new hexagons
  up=false;

  dy=(sqrt(3)*globalR);
  dx=(globalR/2)*3;

  cols=int(width/dx)+2;
  rows=int(height/dy)+3;

  //println(cols);

  shapesArr=new CircShape [cols][rows];

  for(int x=0;x<cols;x++){
    for(int y=0;y<rows;y++){
      if(up==false){
        shapesArr[x][y]=new CircShape(dx*x,dy*.5+dy*y,globalR);
      }
      else{
        shapesArr[x][y]=new CircShape(dx*x,-dy+dy*y,globalR);
      }

    }
    //Invert verse
    up=!up;
  }
  ///

  //println(shapesArr.length);

}

//

PImage imgCropAndFilter(PImage _originalImg,int _x,int _y,int _w,int _h){

  PImage _img=_originalImg.get(_x,_y,_w,_h);

  //Filter it
  _img.filter(POSTERIZE,posterizeLevels);

  return _img;

}