blurry hexes

blurHex.pde

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), ia = atan(sqrt(.5));

float c01(float g) {
  return constrain(g, 0, 1);
}

void draw() {
  if (recording) {
    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();
  } else if (preview) {
    c = mouseY*1.0/height;
    if (mousePressed)
      println(c);
    t = (millis()/(20.0*numFrames))%1;
    draw_();
  } else {
    t = mouseX*1.0/width;
    c = mouseY*1.0/height;
    if (mousePressed)
      println(c);
    draw_();
  }
}

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

int samplesPerFrame = 64;
int numFrames = 180;        
float shutterAngle = .5;

boolean recording = false, 
  preview = true;

void setup() {
  size(800, 600, P3D);
  smooth(8);  
  pixelDensity(recording ? 1 : 2);
  result = new int[width*height][3];
  noStroke();
  blendMode(ADD);
  colorMode(HSB, 1);
}

int nDots;
float qq;
float bx, by;
float d;

void blurryLine(float x1_, float y1_, float x2_, float y2_, float blurAmt) {
  nDots = ceil(dist(x1_, y1_, x2_, y2_)*(1+5*sq(blurAmt)));
  d = 6*(1*(1-blurAmt)+0*sq(1-blurAmt));
  for (int i=0; i<nDots; i++) {
    bx = map(i, 0, nDots, x1_, x2_);
    by = map(i, 0, nDots, y1_, y2_);

    bx += 13*blurAmt*randomGaussian();
    by += 13*blurAmt*randomGaussian();
    ellipse(bx, by, d, d);
  }
}

void blurryHex(float x_, float y_, float r_, float blurAmt) {
  for (int i=0; i<6; i++) {
    blurryLine(x_ + r_*cos(TWO_PI*i/6), y_+r_*sin(TWO_PI*i/6), 
      x_ + r_*cos(TWO_PI*(i+1)/6), y_+r_*sin(TWO_PI*(i+1)/6), 
      blurAmt);
  }
}

float x, y, z, tt;
int N = 12;

void draw_() {
  background(0);
  push();
  translate(width/2, height/2);
  for (int i=0; i<N; i++) {
    fill((i/float(N)+.5)%1,.7,0.25);
    blurryHex(160*cos(TWO_PI*t - PI*i/N), 0, 90, i*1.0/N);
  }
  pop();
}