[Carmack] sprite cut when crossing ceiling portal from above

[Nash]

Load up the example file. Notice that the archvile's sprite is cut when the viewpoint is above the portal. It looks OK when I crouched (and the view goes under the portal).

Only happens in the software renderer. In hardware, it's fine.

[Graf Zahl]

Considering that sector portals are not even an officially supported feature of the software renderer this is hardly surprising.

[Nash]

Fair enough. Just documenting it because I saw it, in case some poor soul wants to work on it in future.

I don't even play with the software renderer anymore to be frank...