Simple Nested Matrices

float rotation;

​

void setup(){

  size(500, 500);

  rotation = 0;

  rectMode(CENTER);

}

​

void draw() {

  background(46, 46, 103);

  pushMatrix();

  translate(width/2, height/2);

  rotate(rotation);

  pushMatrix();

  translate(100, -100);

  rotate(rotation);

  fill(237, 197, 34);

  rect(0, 0, 80, 80);

  popMatrix();

  fill(255);

  rect(0, 0, 200, 200);

  popMatrix();

  rotation += 0.05;

}

​

​