THIS MAP HAS NO VERTICES

[Herculine]

I'm currently using gzdoom-r1281.

Sometimes when I try to load an older map it will refuse to load with the console popping open to give me a warning that the map has no vertices; I'm unable to play the map until I've opened it with DoomBuilder and saved it with no actual changes, thus rebuilding the nodes and such.

(I'd cite specific examples, but this has happened with a number of various maps.)

[Enjay]

Can you provide a link to a map that causes the problem? It would be much easier for the devs to work out what is going on if they have an actual concrete example to work with.

[Herculine]

This was the most recent one I encountered just this morning:

http://www.doomworld.com/idgames/index.php?id=7982

If I can remember others I will post them as well.

[Enjay]

Hmmm, interesting. Well, I'm not getting the error that you got. With both the official versions of ZDoom and GZDoom and the latest SVN builds, the game starts and I can play the map.

However, I did notice an oddity: if I start the map, walk forward and turn left into the first large-ish room, I can see items (eg a shotgun on the ground) appear and disappear as I move around. I opened the map in DeePsea and checked it for errors - none were found. I rebuilt the nodes and the disappearing item problem went away.

So, it looks like it might be a screwy nodes problem but I have no idea why you are getting the error message that you are.

[Herculine]

Thanks for looking into it, Enjay. I'm guessing that it has something to do with whatever editor versions (and nodebuilder versions) were used in the creation of the map. It seems simple enough to remedy as I described in my original post; mainly I'm just curious if anyone else has ever seen this sort of thing or has heard of a better remedy.

[Enjay]

Have you tried running the map with gennodes set to true? That way you force GZDoom to build nodes when it runs a map. It cures the disappearing/reappearing items for me doing it that way.

Either type gennodes 1 at the console or add +gennodes 1 to the command line.

[Herculine]

Thanks again. I'll give that a try. To be honest, I've never used any of the GZDoom command line parameters; I suppose it would behove me to look up such things and learn more.