To be accurate, there's no problem with the textures that
are actually there; but the GL version doesn't render
missing textures. This differs significantly from the
non-GL renderer; due to a quirk of the way the original
Doom renderer handles floors, small patches of missing
texture get flooded over by floor texture, so aren't
noticed. This trick is used deliberately by some levels,
such as eternal map03.
Emulating that quirk in the GL renderer would be extremely
hard.
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Some common cases are already emulated. For example the standard deep water effect. Some of this stuff
is in r_segs.c as far as I remember. I commented it to some extend.
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Ah OK, I've read it over and understand the problem now.
It's an anomaly in the level, that it relies on the flat
flooding effect for the ceiling in the pillars-and-lights
room, but there is an upper texture between two sectors
which rely on this. This defeats PrBoom's special effects
detector, which assumes that if you put in an upper
texture then you don't want it concealed by a fake ceiling
- but in fact this level relies on it.
Very hard to correct - the only way I can see is to do
geometry calculations to work out that the upper texture
was never in practice visible with the original Doom
engine and so need not be considered. Yuk.
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I just browsed bugs, played the demo, then played doom, and
found exactely the same effect at E4M1 with the NIN symbols
at the ceiling.
Original Ultimate Doom shows the "correct" ceiling.
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Speaking of Eternal Doom, the "Credits" level suffers some
pretty bizarre effects too. Load eternal.wad and
credits.wad and you'll see what I mean. The flickering white
ceiling texture over the starting point, first key, and exit are
all accompanied by a flickering stone texture on the floor
beneath them. Is this also related to the flooding effect?
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get bsp-5.1.zip from http://doombsp.sourceforge.net/
Go to the downloads link from this page and get the file.
The zip version is for windows. There is also a tar.gz
version if you use linux. Run the ETERNAL.WAD file through
the new bsp and it will fix the missing floor problems for you!
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demo
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user_id=18428
To be accurate, there's no problem with the textures that
are actually there; but the GL version doesn't render
missing textures. This differs significantly from the
non-GL renderer; due to a quirk of the way the original
Doom renderer handles floors, small patches of missing
texture get flooded over by floor texture, so aren't
noticed. This trick is used deliberately by some levels,
such as eternal map03.
Emulating that quirk in the GL renderer would be extremely
hard.
Logged In: YES
user_id=18721
Some common cases are already emulated. For example the standard deep water effect. Some of this stuff
is in r_segs.c as far as I remember. I commented it to some extend.
Logged In: YES
user_id=18428
Ah OK, I've read it over and understand the problem now.
It's an anomaly in the level, that it relies on the flat
flooding effect for the ceiling in the pillars-and-lights
room, but there is an upper texture between two sectors
which rely on this. This defeats PrBoom's special effects
detector, which assumes that if you put in an upper
texture then you don't want it concealed by a fake ceiling
- but in fact this level relies on it.
Very hard to correct - the only way I can see is to do
geometry calculations to work out that the upper texture
was never in practice visible with the original Doom
engine and so need not be considered. Yuk.
Logged In: NO
I just browsed bugs, played the demo, then played doom, and
found exactely the same effect at E4M1 with the NIN symbols
at the ceiling.
Original Ultimate Doom shows the "correct" ceiling.
Logged In: YES
user_id=600338
Speaking of Eternal Doom, the "Credits" level suffers some
pretty bizarre effects too. Load eternal.wad and
credits.wad and you'll see what I mean. The flickering white
ceiling texture over the starting point, first key, and exit are
all accompanied by a flickering stone texture on the floor
beneath them. Is this also related to the flooding effect?
Logged In: YES
user_id=723969
get bsp-5.1.zip from http://doombsp.sourceforge.net/
Go to the downloads link from this page and get the file.
The zip version is for windows. There is also a tar.gz
version if you use linux. Run the ETERNAL.WAD file through
the new bsp and it will fix the missing floor problems for you!