Vanishing sprites - White texture replacing nothing

Jive · Post by **Jive** » Thu Nov 20, 2008 15:49

1) Playing "The artifact", a compilation of maps made by Paul Schmitz (with his written agreement), I noticed a new bug, never seen before: sprites are vanishing when they are, apparently, a certain number.
Let say... angle 32Â°, they are here, angle 33Â° they have disappeared.

....

2) Trying to figure out how to make Gzdoom compatible an area (perfectly displayed by ZdoomGl, and working perfectly well, which was not the case for Gzdoom...), I had the idea to try to remove all the textures.
It worked !!
I was happy... But, suddenly, I see a horrible white texture replacing an empty space, where there was no texture...
On a certain angle, nothing is displayed, and it's perfect. But if the angle is changing, white appears.
I'm not sure, but it seems to me that this white appears only if I play with monsters. When I play with "No monsters", this white texture is not replacing every missing texture.

Post by **Graf Zahl** » Thu Nov 20, 2008 16:41

Can you give me the version of the map that shows the problem, preferably with some savegames that make it easier to reprdduce?

Jive · Post by **Jive** » Thu Nov 20, 2008 22:04

I have updated my message with screenshots

Jive · Post by **Jive** » Thu Nov 20, 2008 22:43

I had to extract the map03, then to rename it "artifact.wad", otherwise the savedgame didn't accept it.

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Here is it : http://gzdoom.doomwadstation.com/forum/ ... _map03.zip

You'll need RetRes.wad from Team TnT.
Here is it:
http://gzdoom.doomwadstation.com/wads/RETRES.zip

And, for the pleasure (ar least, mine), the picture that I failed to upload (BTW, you deleted my message?!?) :

Jive · Post by **Jive** » Fri Nov 21, 2008 0:09

I suggest a look at the other part of the map with missing textures, replaced by white when I play with monsters, and well displayed without monsters (the huge squared structure)
It's a try I made to make Gzdoom compatible this map. Yes, there are still ugly parts with glitches and distorted textures, but it's playable when it wasn't.

Post by **Graf Zahl** » Fri Nov 21, 2008 0:12

When I load your savegame I get the same effect. When starting the map normally I don't. In your savegame the sector references for the trees are all wrong. You must have started the map with a partially broken node build for that to happen.

Did you make some changes and load the map without building the nodes?

I'm getting no white walls though.

Jive · Post by **Jive** » Fri Nov 21, 2008 0:25

No !
When I do changes, I always rebuild the nodes. I'm using ZenNode, as usually since years.
But... I tried glBSPX version 4.2.24.1 on it, just to know what will happen...
Now, I know what happened.

When I said that you are Graf Luke aka Lucky Zahl !!!

I think that the white textures are the result of glBSPX...

Post by **Graf Zahl** » Fri Nov 21, 2008 0:33

Using Zennode for GL rendering is a waste of time. The best options would be to either save no nodes at all, if possible or use ZDBSP and build compressed GL nodes. But I really can't see any other possibility why all the trees in a certain area have incorrect sector references.

Post by **Enjay** » Fri Nov 21, 2008 0:51

Graf Zahl wrote:When I load your savegame I get the same effect. When starting the map normally I don't.

I too get the same effect with the savegame. However, if I load the map normally (loading artifact.wad and retres.wad), start a game, idclev to map03 then console warp to 549 1823 (the player position in the save) I get the effect again.

But, as you said, it does seem to be a node build problem because if I use zdbsp to build the nodes, I cannot get the problem by repeating the above procedure.

Jive · Post by **Jive** » Fri Nov 21, 2008 1:44

Very very very interesting analysis!!!
As far as I was deeply involved in the development of ZenNode during years, I never looked elsewhere.

ZDBSP ?
Ok, I'll do a search about it.
Many great thanks for your help !!

Post by **Graf Zahl** » Fri Nov 21, 2008 9:26

Enjay wrote:
Graf Zahl wrote:When I load your savegame I get the same effect. When starting the map normally I don't.
I too get the same effect with the savegame. However, if I load the map normally (loading artifact.wad and retres.wad), start a game, idclev to map03 then console warp to 549 1823 (the player position in the save) I get the effect again.

But, as you said, it does seem to be a node build problem because if I use zdbsp to build the nodes, I cannot get the problem by repeating the above procedure.

Just to clarify: I had gennodes set to 1 so I never used the nodes in the WAD.

Post by **Enjay** » Fri Nov 21, 2008 10:30

I wondered if that might be the difference.

Jive · Post by **Jive** » Fri Nov 21, 2008 14:46

All seems to be as well as possible !

Here is my command line:
"G:\Doom\KDX\external\Doom Builder\zdbsp.exe" -r -z "%1" -o"%1"

What do you think about it ?

I was already using this :

And here is the final result, giving me an easy way to use my tools:

Post by **Graf Zahl** » Fri Nov 21, 2008 15:47

The best set of options for building nodes for GZDoom is

zdbsp -z -x -b -r

That builds compressed GL nodes, no normal nodes and empty blockmap and reject lumps.

Jive · Post by **Jive** » Fri Nov 21, 2008 20:41

Thank you, Graf !
Thank you to simplify my life and to don't make me searching by myself what you know perfectly well !!