Set wall textures as sky textures.

[Sonnyboy]

I haven't been able to make a passable skybox with ZDooM. With doombuilder Zdoom in Doom format, you could set a wall texture to be the sky texture to the tagged sectors. Put that in ZDooM (in hexen format) please!

[Gez]

Everything that's possible in Doom format is possible in Hexen format.

[Enjay]

http://zdoom.org/wiki/Static_Init

Prop 255

[HotWax]

Everything that's possible in Doom format is possible in Hexen format.

In this case, maybe not... or at least, not in the same manner.

Special 271 (listed in DB2 as Transfer Sky to Sector) is apparently what Sonny is talking about. In Hexen mode, type 271 is unknown, and I was unable to find an equivalent, either in DB2 or on the wiki. You can, of course, use skybox pickers, but it sounds like Sonny is saying he's no good at that, hence wanting to just set a texture.

I also checked in UDMF, but again 271 is unknown and I couldn't find an equivalent. But then, in UDMF format you'd expect to be able to set the sky texture to use directly from the sector's properties. Sadly, that is not the case.

So, unless I'm missing something, it seems this simple feature or one equivalently easy to use does not exist in Hexen or UDMF format. I would suggest, at the least, adding a ZDoom-specific text property called "alternateskytexture" or something similar in the UDMF format.

[edit] Dammit, Enjay! OK, so forget what I said about there not being an equivalent, but could we have the UDMF property added anyway? It seems to me this is a prime example of what UDMF was meant to do -- take away some of the line specials hacks used to get around the WAD format limitations and put them directly in the sector properties where they belong.

[Blzut3]

Allow me to point out that ZDoom doesn't use Doom format maps as-is. They are up-converted at run time, so I'm pretty sure you won't find a doom format only feature.

[Graf Zahl]

... and coincidentally Enjay already posted the relevant link.

[Gez]

Special 271 (listed in DB2 as Transfer Sky to Sector) is apparently what Sonny is talking about. In Hexen mode, type 271 is unknown

Which is natural since the Hexen format uses only a byte for the line special, to leave more room for the args.

[HotWax]

... and coincidentally Enjay already posted the relevant link.

Missed my edit:

OK, so forget what I said about there not being an equivalent, but could we have the UDMF property added anyway? It seems to me this is a prime example of what UDMF was meant to do -- take away some of the line specials hacks used to get around the WAD format limitations and put them directly in the sector properties where they belong.