For rendering portals. The simplified code looks like: 1.Render Scene. 2.Render Portal into the scene, with z=zFar where zTest passes 3.Render Portal''s contents 4.Render Portal with correct depth. 5.Process the rest of the Portals. So step number 2 makes my head ache. Any suggestions ? NextS

Solved it,
I simply had to limit the zBuffer writes to z-far
via the glDepthRange() func.

NextS
P.S. Well, there''s still another problem left,
but I''ll fix that too.