[Bug 58495] New: Fix Gothic II graphics issues with flickering objects and walls and floors suddenly appearing and disappearing

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58495

Bug ID: 58495
           Summary: Fix Gothic II graphics issues with flickering objects
                    and walls and floors suddenly appearing and
                    disappearing
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: d3d
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

This bug report was spawned after Access Violation error was resolved for
https://bugs.winehq.org/show_bug.cgi?id=58493

So far the graphics issues seem just aesthetical and don't break the game
otherwise.

Grahics issues seem related to bad depth test or culling with flickering
objects and floors and walls appearing and disappearing.

At the very beginning when the main character is going through the initial
dialogue with the first NPC, you can see through the wall and floor behind the
main character.

Once dialogue completes and character is movable it becomes clear that the wall
and floor appear and disappear depending on how far they are away from the
corner of the screen suggesting graphics culling bugs.

winetricks install of practically all d3d dlls didn't resolve this issue which
is still being debugged.

https://appdb.winehq.org/objectManager.php?sClass=version&iId=7012 Night of the
Raven: 2.6/2.7 only mentions fixes for sound but nothing graphics related.

[Bug 58495] Fix Gothic II graphics issues with flickering objects and walls and floors suddenly appearing and disappearing

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58495

--- Comment #1 from Stian Low  ---
Created attachment 78953
  --> http://bugs.winehq.org/attachment.cgi?id=78953
Snapshot of opening scene with graphics bugs at the right side of character

This snapshot displays the parts of the floor and wall being culled invisible
at the right side of the character.

[Bug 58495] Fix Gothic II graphics issues with flickering objects and walls and floors suddenly appearing and disappearing

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58495

--- Comment #2 from Stian Low  ---
Created attachment 79259
  --> http://bugs.winehq.org/attachment.cgi?id=79259
GE-Proton-10-15 fixes graphics issues

Attached is a screenshot of the graphics issues fixed by GE-Proton-10-15.

These winetricks were still required to workaround the access violation that
still happens for GE-Proton-10-15:

dmband, dmcompose, dmime, dmloader, dmscript, dmstyle, dmsynth, dmmusic

I guess GE-Proton-GE hasn't included the MR that fixes the access violation for
vanilla wine yet: https://bugs.winehq.org/show_bug.cgi?id=58493

[Bug 58495] Fix Gothic II graphics issues with flickering objects and walls and floors suddenly appearing and disappearing

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58495

--- Comment #3 from Stian Low  ---
(In reply to Stian Low from comment #2)
> Created attachment 79259 [details]
> GE-Proton-10-15 fixes graphics issues

Should issues like this remain open until vanilla wine also fixes the issue?

Please excuse my confusion regarding vanilla wine d3d vs dxvk/proton variants,
but why are these two projects not more closely aligned?

It's so common that GE-Proton fixes graphics related issues lacking in vanilla
wine that it begs the question: why are such fixes not integrated into vanilla
wine?

I understand different rendering systems play a role across systems but
regarding vulkan why is vanilla wine not more aligned with dxvk?

The game is only (semi) functional for vanilla wine using opengl renderer.
(`winetricks renderer=gl` which is default)

`winetricks renderer=vulkan` fails to launch the game and throws popup error
message: 
"X: XD3D_InitPerDX: Can't create D3DX context!  Error: DDERR_INVALIDPARAMS"

Please advise how to approach closing these types of graphics bugs regarding
vulkan.  I understand more effort to support opengl but for vulkan, is merging
fixes from dxvk not advised?