PVector [] coord = {new PVector(0, 0), new PVector(150, 300), new PVector(300, 0)};

void setup()
{
  size(400,400);
  background(32);
  sierpinski(new PVector(150,150), 8);
  noLoop();
}

void sierpinski(PVector cPoint, int cDepth)
{
  if (cDepth == 0) {
    set(50+int(cPoint.x), (height-50)-int(cPoint.y), color(192));
    return;
  }
  for (int v=0; v<3; v++) {
    sierpinski(new PVector((cPoint.x+coord[v].x)/2, (cPoint.y+coord[v].y)/2), cDepth-1);
  }
}