With this code I intended to visually delimit the complete view of the circuit and the two controlled cars:
draw_rectangle(0,0,1279,719,true);
draw_rectangle(0,720,639,1079,true);
draw_rectangle(640,720,1279,1079,true);
It turns out that only the complete view of the circuit that is drawn directly in the room is correctly delimited (observe the black line of a thick pixel):
Where there should be the rectangle strokes (red line, not necessarily at this thickness):
This happens because of this camera/viewport:
I believe the rectangle is being drawn under the camera/viewport.
What do I need to do to make this rectangle draw over the camera/viewport?