Also FLOORS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(<-add about a thousand more exclamation marks)
I'm using ye-old span method. After looking through the code to some OGL ports it seems I'm not the only one doing this. There are a few holes here and there(like under the purple penis shaped sector in map 1), but I only took the screenshot 10 minutes ago. Should be fixable.
Also I'm back to using MDX. It dawned on me that while going pure-3D whould be a pain in the ass, implementing the software renderer would be a bigger pain. Not really a big deal, all I had to do was uncomment some stuff.