void setup() {
  size(256,256,P3D);
  
  background(200);
}

float h = 0f;

class Point {
  float x,y;
  Point(float x, float y) {
    this.x = x;
    this.y = y;
  }
}

Point points[] = new Point[10];
int cp = 0;

void draw() {
  background(0,0,0.7f);
  noStroke();
  colorMode(HSB, 1.0f);
  points[cp++] = new Point(mouseX,mouseY);
  if (cp>=points.length)
    cp = 0;
    
  for (int i=0; i<6; i++) {
    beginShape(QUAD_STRIP);
    for (int j=0; j<points.length; j++) {
      Point p = points[(j+cp)%points.length];
      if (p==null) break;
      float hh = h+j*0.01f+i/6.0f;
      if (hh>=1)
        hh--;
      fill(hh,(float)j/points.length,0.5f);
      vertex(p.x,p.y,100);
      vertex(p.x,p.y,0);
    }
    endShape();
    translate(width/2,height/2);
    rotateZ(TWO_PI/6);
    translate(-width/2,-height/2);
  }
  h+=0.01f;
  if (h>=1)
    h-=1;
}