gistfile1.txt

void setup() {
  size(500, 500);
  rectMode(CENTER);
  noStroke();
}

float x, y, t, tt;
color c1 = color(32), c2 = color(240, 0, 0), cb = color(245);
int N = 10;
float spm = 60, sp, l1 = spm/2, l2 = spm/4;

void draw() {
  t = frameCount/42.0;
  tt = 3*t*t - 2*t*t*t;
  sp = spm*pow(2,.5*tt);
  background(cb);
  pushMatrix();
  translate(width/2, height/2);
  rotate(QUARTER_PI*t);
  for (int i=-N; i<=N; i++) {
    for (int j=-N; j<=N; j++) {
      x = i*sp; 
      y = j*sp;
      pushMatrix();
      translate(x, y);
      rotate(QUARTER_PI+QUARTER_PI*t);
      fill(c1);
      rect(0, 0, l1, l1);
      popMatrix();
      
      x = (i+.5)*sp; 
      y = (j+.5)*sp;
      pushMatrix();
      translate(x, y);
      rotate(QUARTER_PI-QUARTER_PI*t);
      fill(lerpColor(c2,c1,t));
      rect(0, 0, lerp(l2,l1,t), lerp(l2,l1,t));
      popMatrix();
      
      x = (i+.5)*sp; 
      y = j*sp;
      pushMatrix();
      translate(x, y);
      rotate(-2*QUARTER_PI*t);
      fill(c2);
      rect(0, 0, l2*tt, l2*tt);
      popMatrix();
      
      x = i*sp; 
      y = (j+.5)*sp;
      pushMatrix();
      translate(x, y);
      rotate(QUARTER_PI+QUARTER_PI*t);
      fill(c2);
      rect(0, 0, l2*tt, l2*tt);
      popMatrix();
    }
  }
  popMatrix();
  
  if(frameCount == 42)
    exit();
}