breathe

import peasy.*;
int num = 10, frms = 75, fc;
int w = 200, h = w, d = h;
float theta, step = 20, scal;
boolean animate = false, save=false;

PeasyCam cam;

void setup() {
  size(540, 540, P3D);
  cam = new PeasyCam(this, 0, 0, 0, 200);
  cam.setMinimumDistance(50);
  cam.setMaximumDistance(1000);
}

void draw() {
  background(0);
  for (int x=-w/2; x<w/2; x += step) {
    for (int y=-h/2; y<h/2; y+= step) {
      for (int z= -d/2; z<d/2; z += step) {
        float offSet = map(y, -w/2, w/2, 0, PI);
        pushMatrix();
        scal = 1;
        if (animate) scal = map(sin(theta), -1, 1, 1, 1.5);
        translate(x*scal, y*scal, z*scal);
        box(step*.9);
        popMatrix();
      }
    }
  }
  if (save && frameCount <= fc + frms) saveFrame("/Volumes/Anim/image-###.gif");
  theta += TWO_PI/frms;
}


void keyPressed() {
  if (key == 'a') animate = true;
  if (key == 's') {
    fc = frameCount;
    save = true;
  }
}