class Sunlight{
  float noiseScale=0.3;//0.3;//0.1;//.005;//.01;//0.02;//.01;//0.02;
  int w, h;
  float cellw, cellh;

  Sunlight(){
    //size(800,400,P3D);//screen.width,screen.height,P3D);
    w = 64; 
    h = 48;
    cellw = width/float(w);
    cellh = height/float(h);
    rectMode(CENTER);
    //noLoop();
  }  
  void draw() {
    pushStyle();
    colorMode(RGB, 255);
    background(0);
    noStroke();
    translate(cellw/2, cellh/2);
    for(int i=0; i<w/2; i++){
      for(int j=0; j<h/2; j++){
          int m = int((i+j*w)%64);
              float spc = 2*zpectral.myFFT.spectrum[m];//*PI;
              
        float noiseVal1, noiseVal2, noiseVal3;
        float val1 = frameCount*1;//.2;//random(width);//w/2*(1+sin(radians(frameCount%360)));//frameCount;
        float val2 = h/2*(1+sin(radians(frameCount%360)));
        noiseVal1 = noise((val1+i)*noiseScale, (val2+j)*noiseScale);
        noiseVal2 = noise((val1+j)*noiseScale, (val2+i)*noiseScale);
        noiseVal3 = noise((val2+i)*noiseScale, (val1+i)*noiseScale);
        color k =  color(128+int(round(noiseVal1)*127),
        int(round(noiseVal2)*255),
        int((noiseVal3)*255));
        /*pixels[i+j*width] = k;
         pixels[(width-1-i)+j*width] = k;
         pixels[i+(height-1-j)*width] = k;
         pixels[(width-1-i)+(height-1-j)*width] = k;*/

        pushMatrix();
        translate(i*cellw,j*cellh);
        scale(1+spc);
        dddot(k);
        popMatrix();
        pushMatrix();
        translate((w-1-i)*cellw,j*cellh);
        scale(1+spc);
        dddot(k);
        popMatrix();
        pushMatrix();
        translate(i*cellw,(h-1-j)*cellh);
        scale(1+spc);
        dddot(k);
        popMatrix();
        pushMatrix();
        translate((w-1-i)*cellw,(h-1-j)*cellh);
        scale(1+spc);
        dddot(k);
        popMatrix();
      }
    }
    //filter(POSTERIZE, 4);
    popStyle();
  }
  void dddot(color k){
    fill(k);
    scale(.8); 
    ddot();
    fill(0);
    scale(.6); 
    ddot();
    fill(k);
    scale(.6); 
    ddot();
  }
  void ddot(){
    rect(0,0,cellw,cellh);
  }


}