please help me to solve this problem.
I’written an MFC application that use OpenGl according
to the documentation and samples found on several
I draw two lines (using the glBegin(GL_LINES)…).
The two lines have the same x,y coord but the z is different
line #2 is over the line #1.
Now I use an ortho projection to look at this model from top
(directly down to the Z axis) and the render that I get is
incorrect. It shows a part of line #1 that is under and therefore
NO visible at all !!
Line #1 (Z = 0) --------------
Line #2 (Z = 20) ==============
Eye position V
I get this —=========== ???
I’ve double checked the glortho and glLookat parameters
and everithing is (or at least seems) correct.
Please note that if I remove the graphic acceleration
the problem disappear.