gistfile1.pde

// by david whyte aka bees and bombs. im sorry for this

int[][] result;
float t, c;

float ease(float p) {
  return 3*p*p - 2*p*p*p;
}

float ease(float p, float g) {
  if (p < 0.5) 
    return 0.5 * pow(2*p, g);
  else
    return 1 - 0.5 * pow(2*(1 - p), g);
}

float mn = .5*sqrt(3);

void setup() {
  setup_();
  result = new int[width*height][3];
}

void draw() {

  if (!recording) {
    t = mouseX*1.0/width;
    c = mouseY*1.0/height;
    if (mousePressed)
      println(c);
    draw_();
  } else {
    for (int i=0; i<width*height; i++)
      for (int a=0; a<3; a++)
        result[i][a] = 0;

    c = 0;
    for (int sa=0; sa<samplesPerFrame; sa++) {
      t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 1);
      draw_();
      loadPixels();
      for (int i=0; i<pixels.length; i++) {
        result[i][0] += pixels[i] >> 16 & 0xff;
        result[i][1] += pixels[i] >> 8 & 0xff;
        result[i][2] += pixels[i] & 0xff;
      }
    }

    loadPixels();
    for (int i=0; i<pixels.length; i++)
      pixels[i] = 0xff << 24 | 
        int(result[i][0]*1.0/samplesPerFrame) << 16 | 
        int(result[i][1]*1.0/samplesPerFrame) << 8 | 
        int(result[i][2]*1.0/samplesPerFrame);
    updatePixels();

    saveFrame("f###.gif");
    if (frameCount==numFrames)
      exit();
  }
}

//////////////////////////////////////////////////////////////////////////////

int samplesPerFrame = 8;
int numFrames = 100;        
float shutterAngle = .75;

boolean recording = false;

void setup_() {
  size(500, 500, P3D);
  smooth(8);
  noStroke();
}


float x, y, tt;
int N = 320;

color[] cs = { #ee3322, #22aa44, #0033dd, #eecc22 };
float l = 10;

void thing() {
  for (int i=0; i<4; i++) {
    pushMatrix();
    rotateY(HALF_PI*i);
    fill(cs[i]);
    beginShape();
    vertex(0, -l, 0);
    vertex(l, 0, 0);
    vertex(0, 0, l);
    endShape();
    popMatrix();
  }
  for (int i=0; i<4; i++) {
    pushMatrix();
    scale(1, -1, 1);
    rotateY(HALF_PI*i + PI);
    fill(cs[i]);
    beginShape();
    vertex(0, -l, 0);
    vertex(l, 0, 0);
    vertex(0, 0, l);
    endShape();
    popMatrix();
  }
}
void draw_() {
  background(22); 
  pushMatrix();
  translate(width/2, height/2, -40);
  for (int i=0; i<N; i++) {
    randomSeed(12345*i + 23456);
    x = 60 + 140*sqrt(random(1));
    x += (20+x/10)*sin(TWO_PI*t - 0.019*x);
    pushMatrix();
    rotateZ(random(TWO_PI));
    rotateY(random(TWO_PI));
    rotateX(random(TWO_PI));
    rotateZ(random(TWO_PI));
    rotateY(random(TWO_PI));
    rotateX(random(TWO_PI));
    translate(x,0,0);
    rotateZ(random(TWO_PI));
    rotateY(TWO_PI*t + random(TWO_PI));
    rotateX(random(TWO_PI));
    rotateZ(random(TWO_PI));
    rotateY(TWO_PI*t + random(TWO_PI));
    rotateX(random(TWO_PI));
    thing();
    popMatrix();
  }
  popMatrix();
}