A quest to create a common UDMF map

[gavgav11]

How would a mapper create an UDMF wad that is compatible with at least eternity, zdoom, dsda?
I've noticed issue #143 mentions implementing zdoom namespace but it does not seem to work. Should I run eternity with a zdoom switch of some kind or there a common UDMF namespace that can be used instead?

[elf-alchemist]

There aren't any particularly ideal setups for feature-advanced cross-port UDMF namespaces available to the public yet. We've been working on adding support for the base UDMF spec, and have plans to setup a proper cross-port namespace, instead of relying on port-exclusive namespaces. Suffice to say its not here just yet, but we're looking into it.

https://github.com/doom-cross-port-collab/udmf

doom-cross-port-collab/issue-tracker#15

https://doomwiki.org/wiki/UDMF

[gavgav11]

Wow, sounds awesome, thanks!

[Meerschweinmann]

Probably not exactly what you are searching for, but something familiar i did for EE and GZ/UZDoom for portal use.

A test-map that was build with Ultimate DOOM Builder and the Eternity UDMF config.

The map works out of the box in EE and GZ/UZDoom and shows how to use sector and wall portal features both ports can handle without different map data.

EE can use the Linedef Action 57 for sector portals that is used normally in GZ/UZDoom.
GZ/UZDoom can use the Linedef Action 301 for wall portals that is used normally in EE.

The compromise here is that you can not stack more then two sector above each other, because when you use Linedef Action 57 instead of EEs preferred and in my opinion nicer handleable Linedef Action 300, the portals are defined with sector tags and EE can not use multiple tags in one sector.
Because of that the lift in the sector portal in the example map does not use a sector tag too, because two of them in one sector will not work.

And you have to use buffersectors behind the wall portal lines, because without them you can not walk through the portal line in GZ/UZDoom. EE does not need them.

EE-UZportals.zip

In the end i had to find every lowest common feature for my ever in progress EE/UZDoom map. Most time it is not that much time consuming. But sometimes it is a bit annoying and tricky.

So a cross-port UDMF namespace would be awesome.