2. void setup() {
3.   //size(100, 100, P2D);    
4.   size(100, 100, OPENGL);
5.   hint(DISABLE_DEPTH_TEST);
6. }
7. 
   
8. void draw() {
9.   background(127);
10.   line(0, 0, 100, 100);
11.   rect(20, 20, 40, 40);
12. }

If I use the P2D renderer the black diagonal line is covered by the last draw rectangle.  If I use P3D or OPENGL, the diagonal line is not covered even though I use hint(DISABLE_DEPTH_TEST);    How can I recreate the rendering settings of P2D in P3D or OPENGL?

Thanks