Depth Sorting and PShape

Processing Libraries
3

I could not install QueasyCam (it fails) so I tried with PeasyCam

import peasy.*;

PeasyCam cam;

PShape box;
PShape sphere;

public void setup() {
  fullScreen(P3D);
  
  cam = new PeasyCam(this, 400);
  
  box = createShape(BOX, 100.0f);
  sphere = createShape(SPHERE, 50.0f);
  
  box.setStroke(false);
  box.setFill(color(255, 0, 0, 100));
  
  sphere.setStroke(false);
  sphere.setFill(color(255, 0, 0, 100));
  
  noStroke();
  fill(0, 0, 255, 100);
}

public void draw() {
  background(255);
  
  // Just to be sure
  hint(ENABLE_DEPTH_TEST);
  hint(ENABLE_DEPTH_MASK);
  
  // Magic line that should all correct
  hint(ENABLE_DEPTH_SORT);
  
  for(int i=0; i<2; i++) {
    translate(0, 0, i*200);
    pushMatrix();
    translate(100, 100, 0);
    sphere(50);
    translate(-200, 0, 0);
    box(100);   
    translate(0, -200, 0);
    shape(box);
    translate(200, 0, 0);
    shape(sphere);
    popMatrix();
  }  
}

For me too the shapes created with createShape behave different from those drawn directly.
But even when dealing only with shapes drawn directly the transparency works only sometimes, depending on the rotation.
2018-10-08-215604_500x500_scrot 2018-10-08-215643_500x500_scrot