[Bug 17637] New: Gothic III: Flickering black/textured polygones at some places

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=17637

           Summary: Gothic III: Flickering black/textured polygones at some
                    places
           Product: Wine
           Version: 1.1.15
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: directx-d3d
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: svenbrauch at googlemail.com


At some places in the world of Gothic III, especially at towns (places with
many objects), there are polygones in the air which are either black or
textured. They are not "steady", changing the camera view and moving the hero
makes them flicker, move or change. Textured polygones are more steady and more
solid than black ones.
Looking at these polygones decreases performance of the game, the more of them
is visible, the lower the performance.

I *think* (im not sure) the appearing of these polygones is related to this
error message:
fixme:d3d_shader:shader_glsl_select >>>>>>>>>>>>>>>>> GL_INVALID_OPERATION
(0x502) from glUseProgramObjectARB @ glsl_shader.c / 3584
which obviously doesn't say much (... or does it do?).

The polygones appear with both fbo and backbuffer offscreen rendering method.
With fbo, performance decrease is, as far as i can see, worse.

The problems are acceptable in the desert, in the ice part of the world, and
generally outside towns; towns in myrtana are kind of unplayable, full of these
things. Here's a screenshot:
http://img10.imageshack.us/img10/3087/30122310.png


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