[Bug 54174] New: fog issue in ut2004

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54174

             Bug #: 54174
           Summary: fog issue in ut2004
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: aaalmosss@gmail.com


Created attachment 66251
  --> https://bugs.freedesktop.org/attachment.cgi?id=66251
pavement wrong.jpg

Fog seems to be rendered incorrectly in the game: whole objects get the same
fog value based on their farthest vertex from the z=0 plane. Best seen on these
maps:

as-fallencity: the road to the first objective is white when looking in the
direction of the barricade or away from it, normal when looking in the
direction of the spawn positions (see attached screenshots); other road
segments are also affected, but this one is the most apparent

dm-albatross, as-junkyard: the clouds in the sky are only visible when looking
at certain angles, but are fogged otherwise

So far I considered this a bug in the linux port of the game, but now I managed
to try the game with d3d renderer through wine, and the fog problem appeared
the same way as with the linux port. It's also possible, though unlikely, that
the same bug exists in the linux port of the game and in wine-d3d.

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