[Bug 14633] New: Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

Summary: Morrowind: water plane z-buffer problem with pshaders
           Product: Wine
           Version: 1.1.2
          Platform: PC-x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: directx-d3d
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]

Having rendering issues with the water plane when pixelshaders are activated (I
think the only thing that pshaders affect in Morrowind are the water plane).

Looks like some sort of z-buffer issue. Gonna attach screenshots.
Using TSE3: Morrowind version 1.2.0722.

The issues are no there if pshaders are switched off. Everything tested in
Seyda Neen so if you have to start a new game you don't have to travel far to
see this bug :)

Adding Stefan Dösinger since he is also CCed in this bug:
http://bugs.winehq.org/show_bug.cgi?id=10120
And #10120 also has to do with the water plane, so maybe both are somehow
connected...?!

Greets,
Tobias

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

Tobias Jakobi  changed:

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                 CC|                            |[e-mail]

--- Comment #1 from Tobias Jakobi   2008-07-25 14:30:57 ---
Using a nvidia GeforceFX 5900 with nvidia-drivers-100.14.19.
Again adding Matteo

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #2 from Tobias Jakobi   2008-07-25 14:33:37 ---
Created an attachment (id=15037)
 --> (http://bugs.winehq.org/attachment.cgi?id=15037)
Morrowind without pshaders, ground looks normal

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #3 from Tobias Jakobi   2008-07-25 14:34:52 ---
Created an attachment (id=15038)
 --> (http://bugs.winehq.org/attachment.cgi?id=15038)
Morrowind without pshaders, waterplane looks ugly

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #4 from Tobias Jakobi   2008-07-25 14:36:17 ---
Created an attachment (id=15039)
 --> (http://bugs.winehq.org/attachment.cgi?id=15039)
Morrowind with pshaders, see the z-fighting going on?

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #5 from Tobias Jakobi   2008-07-25 14:39:36 ---
Created an attachment (id=15040)
 --> (http://bugs.winehq.org/attachment.cgi?id=15040)
Morrowind with pshaders, waterplane above terrain

Keep in mind that all screenshots including this one are taken from the TOP of
the Seyda Neen lighthouse.

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #6 from Tobias Jakobi   2008-07-25 14:41:55 ---
Created an attachment (id=15041)
 --> (http://bugs.winehq.org/attachment.cgi?id=15041)
a last pic from Morrowind with pshaders on

Not taken from all way up the lighthouse (a bit lower than the previous shots)

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #7 from Matteo Modesti   2008-07-25 18:00:53 ---
I can't confirm this bug since I can't even start Morrowind with Pixel Shaders
activated.
It's also true that I tried it about one month ago, so I'll retry when I'll
have some more free time and then let you know.

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #8 from Tobias Jakobi   2008-07-25 18:07:34 ---
OK thanks! Let's hope it's working then and you can confirm it :)

Greets,
Tobias

[Bug 14633] Morrowind: water plane z-buffer problem with pshaders

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #9 from Tobias Jakobi   2008-10-07 18:03:33 ---
Reconfirming with wine-1.1.5 and wine git master.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Tobias Jakobi  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Morrowind: water plane z-   |Morrowind: z-buffer
                   |buffer problem with pshaders|precision issues (even with
                   |                            |small distances)

--- Comment #10 from Tobias Jakobi   2008-10-19 17:18:19 ---
Hi there,

I must have done some mistakes when analyzing this bug. I'm currently running
wine-1.1.6 and the issue is still there. BUT switching pshader water off does
NOT fix it.

So I went back to wine-1.1.2 and checked there again. I can now also reproduce
the issue with pshader water off. I also tried some combination of GLSL=off/on
and ORM=fbo/backbuffer, but that doesn't change the situation.

I therefore have updated the summary.
I can also see the issue for other objects (not only the waterplane) but also
houses, etc.
Please note that the issue also affects geometry with small distance to the
player's viewpoint.

So climbing on top of the Seyda Neen lighthouse is optional, I can confirm the
issue even when staying on the ground.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #11 from Tobias Jakobi   2008-11-22 14:34:22 ---
Reconfirming with wine-1.1.9

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Philip Nilsson  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1

--- Comment #12 from Philip Nilsson   2008-11-27 09:13:26 ---
*** This bug has been confirmed by popular vote. ***

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #13 from Tobias Jakobi   2009-01-24 18:54:32 ---
Reconfirming with wine-1.1.13

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #14 from Tobias Jakobi   2009-02-04 19:15:52 ---
Interesting fact: I works fine (except performance of course) on my integrated
Intel i915.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #15 from Tobias Jakobi   2009-03-06 04:58:46 ---
Reconfirming with wine-1.1.16

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Mehdi Yousfi-Monod  changed:

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                 CC|                            |[e-mail]

--- Comment #16 from Mehdi Yousfi-Monod   2009-03-31 20:07:43 ---
It seems I have the same or a similar bug.

I can see Z-fightings on many places in the game.
It can be water, doors, windows.
More bothering on NPCs (and also on me when in 3rd person view), where
Z-fightings cause texture to blink. Mainly on articulations. The closer I am
from them, the lesser I see this bug. From a far distance, even the whole head
is blinking.

I also noticed this bug on Cedega versions from 6.1.1 to 7.1.1 (last one
currently). However the bug disappear with Cedega 6.1.0. And the game simply
doesn't run with versions below 6.1.0.

I tried playing with Wine Direct 3D registry keys and with NVIDIA X Server
settings without success.

Config: Wine 1.1.18, Ubuntu Intrepid 64, Morrowind GOTY (French), laptop Sager
NP2096 / GPU NVidia 9600M GT, drivers x86_64-180.44 / CPU Intel P9600

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #17 from Tobias Jakobi   2009-04-19 09:33:15 ---
Reconfirming with wine-1.1.19

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #18 from Tobias Jakobi   2009-06-17 17:39:13 ---
I can no longer test this since my new mainboard doesn't have a AGP slot
anymore and the FX5900 was an AGP card. The issue doesn't occur on my Radeon
HD3200, so probably it's either hardware or driver dependant. I'm going to get
a lowcost NV card in the next weeks, so I can continue to track the issue
there.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Michael Wood  changed:

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                 CC|                            |[e-mail]

--- Comment #19 from Michael Wood   2009-09-28 13:36:58 ---
This is still an issue when using Nvidia drivers. I am pretty sure that the
problem is related to the Nvidia drivers as this occurs when using cedega as
well.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Kol  changed:

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                 CC|                            |[e-mail]

--- Comment #20 from Kol   2009-10-16 17:38:48 ---
This bug is seen under all versions of Wine on the machine with 
the Nvidia 8800GT videocard (driver version 180.51) bun is absent 
under Cedega 5.2.10 on the same system.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #21 from Kol   2009-11-28 21:33:41 ---
More accurately, Cedega has this bug #14633 (waterplane above terrain),
but never shows bug #17927 (texture flickering) also connected with
z-buffer precision.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #22 from Michael Wood   2009-11-28 22:30:16 ---
(In reply to comment #21)
> More accurately, Cedega has this bug #14633 (waterplane above terrain),
> but never shows bug #17927 (texture flickering) also connected with
> z-buffer precision.

I see the flickering textures in cedega all the time. They only occur outside
but I see them in areas that don't have any water and I see them a lot with
NPC's hair. I get the exact same problems in both cedega and wine.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #23 from Jeff Zaroyko   2009-11-29 01:46:58 ---
Cedega is of no interest here.  Please test with Wine and mention the version
of Wine you've last tested with.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #24 from Michael Wood   2009-11-29 15:38:04 ---
(In reply to comment #23)
> Cedega is of no interest here.  Please test with Wine and mention the version
> of Wine you've last tested with.

Cedega was mentioned because of a belief that the bug is related to the Nvidia
drivers. Obviously nobody expects anyone here to offer solutions for Cedega
issues. It was simply to establish that the same issues occur there in engines
that previously worked and that the problem began with the same thing that
triggered it in Wine being the Nvidia driver update. The comments were for the
benefit of this ticket in relation to Wine.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Loïc Hoguin  changed:

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                 CC|                            |[e-mail]

--- Comment #25 from Loïc Hoguin   2009-12-31 08:56:33 ---
Same issue here, on a 8800 GTS. Tried with drivers 180, 185 and 190. If it's an
NVidia bug, they all have the issue. Works correctly on Windows though. Tested
with 1.1.35 and today's git.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

[e-mail] changed:

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                 CC|                            |[e-mail]

--- Comment #26 from [e-mail]  2010-01-09 10:27:56 ---
I have the same issues also running on nvidia geforce GTS-250 on driver 190.53
Much less severe then the cases I have read about. The z-fighting begins at
cells far out of the zero point in exterior cells. tested on wine 1.1.34,
1.1.35 and 1.1.36.

I will test it on crossover games to see what happens there.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Knef  changed:

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                 CC|                            |[e-mail]

--- Comment #27 from Knef   2010-02-06 05:27:01 ---
Same problem here. I have Ubuntu Karmic 64bit, and an Nvidia 8800GTS graphic
card with the 185.18.36 driver. I have been trying to play Morrowind in Wine on
this computer since Intrepid, and the flickering has always been present.

I am under the impression that this glitch disappears if I disable the Nvidia
driver before playing, but the resulting performance is so slow that the game
is unplayable anyway.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #28 from Mehdi Yousfi-Monod   2010-03-02 13:16:50 ---
Reconfirming with wine-1.1.39, nvidia drivers 190.53, Ubuntu Karmic 64, GeForce
9600M GT.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #29 from Mehdi Yousfi-Monod   2010-03-02 13:23:12 ---
*** Bug 17927 has been marked as a duplicate of this bug. ***

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #30 from [e-mail]  2010-03-03 13:07:54 ---
Has anyone been able to confirm that this is actually wine causing the
trouble?? It may just as well be a driver problem. People suffering from this
problem should test this under windows as well if they actually happen to have
a dual boot system because I have seen this under windows as well with some
videocards.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #31 from Knef   2010-03-03 13:20:48 ---
(In reply to comment #30)
> Has anyone been able to confirm that this is actually wine causing the
> trouble?? It may just as well be a driver problem. People suffering from this
> problem should test this under windows as well if they actually happen to have
> a dual boot system because I have seen this under windows as well with some
> videocards.

I never experienced this bug on Windows.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #32 from Mehdi Yousfi-Monod   2010-03-03 21:58:18 ---
I did experienced the bug on Windows, with the same hardware config.
Changing z-buffer setting thx to the Morrowind Graphic Extender fixed it.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #33 from Mehdi Yousfi-Monod   2010-03-04 07:44:20 ---
I no longer have the z-fighting/flickering bug when using the last NVIDIA
195.36.08 driver!
Please confirm :-)
Ubuntu Karmic 64, GeForce 9600M GT

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #34 from Knef   2010-03-04 08:00:42 ---
(In reply to comment #33)
> I no longer have the z-fighting/flickering bug when using the last NVIDIA
> 195.36.08 driver!
> Please confirm :-)
> Ubuntu Karmic 64, GeForce 9600M GT

That's encouraging. I'm going to try and update now.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #35 from Knef   2010-03-04 09:42:56 ---
(In reply to comment #34)
> (In reply to comment #33)
> > I no longer have the z-fighting/flickering bug when using the last NVIDIA
> > 195.36.08 driver!
> > Please confirm :-)
> > Ubuntu Karmic 64, GeForce 9600M GT
>
> That's encouraging. I'm going to try and update now.

I confirm that the flickering is solved on my system with the new driver.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Tobias Jakobi  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #36 from Tobias Jakobi   2010-03-04 10:17:04 ---
I can't verify this since I still lack a nVidia card, but I trust you guys if
you say that the new driver fixed it.

Hmm, so it wasn't a wine bug all along - setting to RESOLVED, INVALID.

Greets,
Tobias

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

--- Comment #37 from [e-mail]  2010-03-04 15:21:58 ---
Too late to confirm (bug has allready been marked as fixed) but to my great joy
updating to the new 195.36.08 driver has solved the problem for me as well :)

This on a geforce GTS-250. Looks like all geforce users can now enjoy morrowind
on wine the way it was meant to be played.

[Bug 14633] Morrowind: z-buffer precision issues (even with small distances)

http://bugs.winehq.org/show_bug.cgi?id=14633

Jeff Zaroyko  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #38 from Jeff Zaroyko   2010-03-04 16:14:28 ---
Closing invalid.