I've managed to open the portal file:
HOLY HELL, no wonder VIS takes more than 2 hours to process the darn map!
Alright, now it will be easier to see what's wrong.
But I'm really confused about this part:
I'll have to look further...
The windows, for example:
In the editor, they're covered with a hint+skip brush, just like they should.
But I just don't understand why these smooth window things produce such nightmarish results, even though they're like this:
Also, this thing is func_detail so it doesn't make VIS work longer:
This stuff is plain unpredictable.
Oh... NOW I SEE.
THIS is also func_detail:
Yay, looks like we can fix one part of the issue. :DDDDD
Kids, always remember to double-check for func_details so you can cover them too.
P.S. SC-VIS.exe managed to finish processing the map in 10101 seconds. Seriously.
And yet another reason why VIS takes so long:
Yeah, gotta turn it to func_detail right now.
Anyway, big thanks to Solokiller for reminding me of Crafty.
It truly is a crafty tool, as the name suggests.