Point[]p = new Point[3];
float shift = 2.0;
float fade = 0;
float fillCol = 0;
float rot = 0;
float spin = 0;
float value = random(100);
float valuex = random(200);
float valuey = random(300);

void setup(){
  size(800, 800);
  background(0);
  smooth();
  noStroke();
}

void draw() {
  fade = 255.0/(width/2.0/shift);
  spin = 360.0/(width/2.0/shift);
  p[0] = new Point(-width/2, height/2);
  p[1] = new Point(width/2, height/2);
  p[2] = new Point(0, -height/2);
  translate(width/2, height/2);
  spiral(value, valuex, valuey); 
}

void spiral(float shift1, float shift2, float shift3){
  fill(fillCol);
  fillCol+=fade;
  rotate(spin);
  rotate(PI/3.0);
  float r = random(100, 255);
  float g = random(100, 255);
  float b = random(100, 255);
  fill(r, g, b, 10);
  triangle(p[0].x+=shift, p[0].y-=shift/(random(shift1)), p[1].x-=shift, p[1].y-=shift/(random(shift2)), p[2].x, p[2].y+=shift*(random(shift3))); 
  if(p[0].x<0){
    // recursive call
    spiral(shift1, shift2, shift3);
  }
}