[Driver issue]ATI Fog problems (formerly: Blinking lights.)

[solarsnowfall]

Just playing through Doom2.wad, I notice lights in some sectors tend to blink in a regular pattern. For instance, starting Map01, looking in at the room with the pillars and staircase, at certain angles, the light "blinks" to a brighter level then back again, with a regular occurance. There are no light related sector tags or specials assigned to theese sectors.

[Graf Zahl]

What graphics card do you have?

[solarsnowfall]

ATI Radeon 9800, with 256 bit memory interface and 256 MB of memory.

[Graf Zahl]

ATI. Of course. I had another report with the same problem and it was also an ATI card. It seems the depth fog implementation is somewhat broken on some ATI cards or drivers. Maybe you can do something in the driver settings about it?

[Willis]

ahh, so I'm not the only one. I've frigged around with my settings to no avail and updated to the latest drivers which also has not helped

[Graf Zahl]

Just to confirm my suspicion, could you load a map with real fog (like LTSD E4M3 or Herian2 Map19) and look what it is doing there?

[solarsnowfall]

Other than adjusting the performance settings of the card, I wouldn't know what else to change. The drivers are up to date, and this thing can handle just about anything I throw at it with no problems...

EDIT: Oops, I was late with that post, I'll look for theese maps in the archives

[solarsnowfall]

I'm not finding the files, if you want me to test run them, can you tell me where I can download them?

[NiGHTMARE]

LTSD: http://www.doomworld.com/idgames/index.php?id=11787

[solarsnowfall]

Ok, I ran the wad, and I get the same thing. It crashes on e1m4 during a scripted sequence, and I can't look at the level.

[spoiler]Code: ACCESS_VIOLATION
Tried to write address ff000010
Flags: 00000000
Address: 004c7c6e

Windows NT 5.1 Build 2600 Service Pack 2

GS=0000 FS=003b ES=0023 DS=0023
EAX=00800000 EBX=00000000 ECX=00004083 EDX=ff000000
ESI=01d94f28 EDI=a5f0585f
EBP=00000000 EIP=004c7c6e ESP=0012fb14 CS=001b SS=0023
EFlags=00290246
CF- PF+ AF- ZF+ SF- TF- IF+ DF- OF- NT- RF+ VM- AC- VI+ VP-

FPU State:
ControlWord=027f StatusWord=0021 TagWord=ffff
ErrorOffset=004d4751
ErrorSelector=015e001b
DataOffset=0012fa14
DataSelector=ffff0023
Cr0NpxState=00000000

MM0=000000dc00000020
MM1=0000000000000000
MM2=8000000000000000
MM3=efffff0000000000
MM4=0000000000000000
MM5=01d94f28a5f0585f
MM6=0000000000800000
MM7=000000230012fb14

Running threads:
00000f1c at 004c7c6e*
00000d9c
000000f8
00000408
00000f48
00000b80
000009bc
0000049c

Loaded modules:
00400000 - 006ccfff *GZDoom.exe
7c900000 - 7c9affff ntdll.dll
7c800000 - 7c8f3fff kernel32.dll
5ed00000 - 5edcbfff OPENGL32.dll
77c10000 - 77c67fff msvcrt.dll
77dd0000 - 77e6afff ADVAPI32.dll
77e70000 - 77f00fff RPCRT4.dll
77f10000 - 77f55fff GDI32.dll
77d40000 - 77dcffff USER32.dll
68b20000 - 68b3ffff GLU32.dll
73760000 - 737a8fff DDRAW.dll
73bc0000 - 73bc5fff DCIMAN32.dll
10000000 - 10095fff fmod.dll
77be0000 - 77bf4fff MSACM32.dll
76b40000 - 76b6cfff WINMM.dll
774e0000 - 7761cfff ole32.dll
71ad0000 - 71ad8fff WSOCK32.dll
71ab0000 - 71ac6fff WS2_32.dll
71aa0000 - 71aa7fff WS2HELP.dll
773d0000 - 774d1fff COMCTL32.dll
77f60000 - 77fd5fff SHLWAPI.dll
763b0000 - 763f8fff comdlg32.dll
7c9c0000 - 7d1d3fff SHELL32.dll
5ad70000 - 5ada7fff UxTheme.dll
76f50000 - 76f57fff wtsapi32.dll
76360000 - 7636ffff WINSTA.dll
5b860000 - 5b8b3fff NETAPI32.dll
77fe0000 - 77ff0fff Secur32.dll
08cd0000 - 08cdffff ctagent.dll
73f10000 - 73f6bfff dsound.dll
77c00000 - 77c07fff VERSION.dll
76c30000 - 76c5dfff WINTRUST.dll
77a80000 - 77b13fff CRYPT32.dll
77b20000 - 77b31fff MSASN1.dll
76c90000 - 76cb7fff IMAGEHLP.dll
72d20000 - 72d28fff wdmaud.drv
72d10000 - 72d17fff msacm32.drv
77bd0000 - 77bd6fff midimap.dll
73ee0000 - 73ee3fff KsUser.dll
76fd0000 - 7704efff CLBCATQ.DLL
77120000 - 771abfff OLEAUT32.dll
77050000 - 77114fff COMRes.dll
6ce10000 - 6ce47fff dinput8.dll
688f0000 - 688f8fff HID.DLL
77920000 - 77a12fff SETUPAPI.DLL
69000000 - 6966dfff atioglxx.dll

Bytes near EIP:
004c7c5e: 4a 1c 8b 51 18 8b 0d bc 23 5e 00 8b f0 8b 46 28
004c7c6e: 89 4a 10 8b 15 28 4f 6b 00 50 8b 04 13 8b 48 1c
004c7c7e: 8b 51 18 52 e8 79 f9 ff ff 83 c4 14 84 c0 74 5d

ZDoom version 2.0.96x (0.9.1)

Command line:
C:\Program Files\Zdoom63\GZDoom.exe C:\Program Files\Zdoom63\007ltsd.wad
IWAD: doom.wad

Current map: E4M4

viewx = 46137344
viewy = 23068672
viewz = 12582912
viewangle = 0

Possible call trace:
004c7c6e BOOM
004bdbe0 call 004bce60
004bcea2 call 004bd990
004bdbe0 call 004bce60
004bcea2 call 004bd990
004bdbe0 call 004bce60
004bcea2 call 004bd990
004bdbe0 call 004bce60
004bce86 call 004bd990
004bdbe0 call 004bce60
004bcea2 call 004bd990
004bdbe0 call 004bce60
004bd895 call 004bdb40
004ca509 call 004bd7f0
004ca516 call 004c78a0
004cbec6 call 004ca4c0
004cc26c call 004cbcf0
00417360 call 004cc0e0
00418393 call 004170c0
0040b851 call 0040b7a0
0040b851 call 0040b7a0
005366e1 call 0040b840
005367e3 call 005402aa
0055207b
0053422d call 004183d0
00534566 call 00533e30
00543b69 call 005344f0
005439fd call 00541050
005439e5

Stack Contents:
0012fb14: 01d94f28 0012fb34 00000000 01df79b8 (O··4········y··
0012fb24: 00000000 de93e960 00000000 00000000 ····`···········
0012fb34: 16c26700 273c6540 05c00000 00584758 ·g··@e<'····XGX·
0012fb44: 004bdbe0 16c26700 273c6540 006b46ac ··K··g··@e<'·Fk·
0012fb54: 004bcea2 2424a740 2e87aec0 05800000 ··K·@·$$···.····
0012fb64: 00584758 004bdbe0 2424a740 2e87aec0 XGX···K·@·$$···.
0012fb74: 006b46ac 004bcea2 0d7d7510 278292c0 ·Fk···K··u}····'
0012fb84: 06c00000 00584758 004bdbe0 0d7d7510 ····XGX···K··u}·
0012fb94: 278292c0 006b46ac 004bcea2 21d2b840 ···'·Fk···K·@··!
0012fba4: 3e5960c0 06c00000 00584758 004bdbe0 ·`Y>····XGX···K·
0012fbb4: 21d2b840 3e5960c0 006b46ac 004bce86 @··!·`Y>·Fk···K·
0012fbc4: 00000000 39058100 06c00000 00584718 ·······9·····GX·
0012fbd4: 004bdbe0 e8567de0 39058100 006b46ac ··K··}V····9·Fk·
0012fbe4: 004bcea2 c17d6dc0 fc0d1ccc 03afffff ··K··m}·········
0012fbf4: 005846d8 004bdbe0 c17d6dc0 fc0d1ccc ·FX···K··m}·····
0012fc04: 02b256f8 00000000 00000000 00000000 ·V··············
0012fc14: 004bd895 02b25708 01df79b8 de93e960 ··K··W···y··`···
0012fc24: 00000000 00000000 01b00000 00a00000 ················
0012fc34: 02a00000 004ca509 004ca516 01df79b8 ······L···L··y··
0012fc44: de93e960 0012fcdc 006b46ac 004cbec6 `········Fk···L·
0012fc54: 0062bc18 01d32000 00000000 005e595c ··b·· ······\Y^·
0012fc64: 0062b264 11000040 004cc26c 01df79b8 d·b·@···l·L··y··
0012fc74: 00000000 42b40000 3fccd9e9 00000001 ·······B···?····
0012fc84: 0000026e 01d32000 00000000 00417360 n···· ······`sA·
0012fc94: 3fccd9e9 00000001 0035e198 42b40000 ···?······5····B
0012fca4: 0000026e a60416a6 fffe846f 00418393 n·······o·····A·
0012fcb4: 00000000 0000026e 01d32000 00000001 ····n···· ······
0012fcc4: 00000001 000002e6 0012fcb8 0012fe04 ················
0012fcd4: 00552240 00000000 00000004 00000000 @"U·············
0012fce4: 0012fe68 0000017e 9acf28c9 08bf0eb8 h···~····(······
0012fcf4: ebf9572a 524b2309 6d6f6f44 7475412e *W···#KRDoom.Aut
0012fd04: 616f6c6f 73650064 6f645a2f 33366d6f oload·es/Zdoom63
0012fd14: 696b732f a000736e 165c6cf1 4857a58c /skins···l\···WH
0012fd24: f6793ab7 212eb02f 22419ba0 5b770d93 ·:y·/·.!··A"··w[
0012fd34: 3fd7d135 a634fa62 d15cc95b 556ca5a4 5··?b·4·[·\···lU
0012fd44: 005ca698 db35e198 0040b851 00000002 ··\···5·Q·@·····
0012fd54: 005ca690 db35e198 0040b851 00000002 ··\···5·Q·@·····
0012fd64: 005ca690 0012fd74 005366e1 005ca690 ··\·t····fS···\·
0012fd74: 005367e3 00000094 00000005 00000001 ·gS·············
0012fd84: 00000a28 00000002 76726553 20656369 (·······Service
0012fd94: 6b636150 77003220 774ff5d1 00160ba0 Pack 2·w··Ow····
0012fda4: 8007000e 776068e4 774ec2b4 00000000 ·····h`w··Nw····
0012fdb4: 0012fdd8 7751a29c 00160ba0 7c80977b ······Qw····{··|
0012fdc4: 0012fe00 00000000 7760683c 0012fdf8 ········<h`w····
0012fdd4: 774ff04b 00000001 00000000 00000002 K·Ow············
0012fde4: 00000000 00000000 0000026e 0000017e ········n···~···
0012fdf4: db35e198 0012fe5c 0055207b db35e198 ··5·\···{ U···5·
0012fe04: 0012fe5c 0055225e ffffffff 0053422d \···^"U·····-BS·
0012fe14: ffffffff 7c80e00d 7ffda000 00000000 ·······|·······
0012fe24: 00000000 0000026e 0000017e 00000001 ····n···~·······
0012fe34: 000f4240 0012fe2c 00000020 00000199 @B··,··· ·······
0012fe44: 00000276 00400000 00400240 00400218 v·····@·@·@···@·
0012fe54: 7c800000 0012fe14 0012fe88 005547a0 ···|·········GU·
0012fe64: 00000000 0012fe98 00534566 00400000 ········fES···@·
0012fe74: 7c80b529 00000000 7ffda000 0012fe74 )··|·······t···
0012fe84: 0012f738 0012ffb0 0054385c 005ca028 8·······\8T·(·\·
0012fe94: 00000000 0012ffc0 00543b69 00400000 ········i;T···@·
0012fea4: 00000000 00152336 00000001 00000094 ····6#··········
0012feb4: 00000005 00000001 00000a28 00000002 ········(·······
0012fec4: 76726553 20656369 6b636150 e4003220 Service Pack 2··
0012fed4: e4d09000 e4d0a000 e4d0b000 e4d0c000 ················
0012fee4: e4d0d000 e4d0e000 e4d0f000 e4d10000 ················
0012fef4: e4d11000 6d8bdc4f 000001b7 83877908 ····O··m·····y··
0012ff04: 00000000 00000300 00000000 00000001 ················
0012ff14: ff676980 0000000d 00000000 010001b7 ·ig·············
0012ff24: 0000000d 00003d05 80557600 ed6cac48 ·····=···vU·H·l·
0012ff34: 80542fc1 86ff2000 00003d05 005439fd ·/T·· ···=···9T·
0012ff44: 80000001 0139c95c 7ffda000 00000044 ····\·9····D···
0012ff54: 00153638 00153488 00153698 00000000 86···4···6······
0012ff64: 00000000 00000000 00000000 00000000 ················
0012ff74: 00000000 00000000 00000001 00000001 ················
0012ff84: 00000000 ffffffff ffffffff ffffffff ················
0012ff94: 00000408 00000000 00000001 00152336 ············6#··
0012ffa4: 00000000 0012feb0 80615ce3 0012ffe0 ·········\a·····
0012ffb4: 0054385c 005cb6c8 00000000 0012fff0 \8T···\·········
0012ffc4: 7c816d4f 80000001 0139c95c 7ffda000 Om·|····\·9····
0012ffd4: 80543dfd 0012ffc8 84b7a660 ffffffff ·=T·····`·······
0012ffe4: 7c8399f3 7c816d58 00000000 00000000 ···|Xm·|········
0012fff4: 00000000 005439e5 00000000 ·····9T·····[/spoiler]

EDIT: The problem is with normal sectors blinking...

[Willis]

I played LTSD E4M3 and a lot of the time it looked ok but other times it would flicker like this:

[Graf Zahl]

Ok, I ran the wad, and I get the same thing. It crashes on e1m4 during a scripted sequence, and I can't look at the level.

EDIT: The problem is with normal sectors blinking...

That bug should be fixed in the next version. It's the same as the Void crashes mentioned elsewhere.

About the fog, that really sucks. ATI seems to have problems with proper handling of depth fog. It's too bad that I don't have any system to test it with myself.

[Graf Zahl]

What I'd like to know now is whether other ATI users are having the same problem. It can't really be that everyone else is using NVidia cards, right?

[solarsnowfall]

About the fog, that really sucks. ATI seems to have problems with proper handling of depth fog.

I'm confused. Is it that every sector has fog set to 0, or something? When I say sectors blink, there's no visible fog in them. Is this just a case me not knowing WTF I'm talking about here?

[Graf Zahl]

I am using depth fog to get the fade to black effect so practically it is always there.