[Mesa-dev] [Bug 31159] New: shadow problem in 0ad game

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31159

           Summary: shadow problem in 0ad game
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
        AssignedTo: mesa-dev at lists.freedesktop.org
        ReportedBy: fabio.ped at libero.it


Created an attachment (id=39808)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39808)
example of wrong shadow in the 0ad editor behind the lion

Using the 0ad game in some maps or in the editor appear a shadow covering all
the screen behind last element that shouldn't be there. The simple way to
reproduce this is through the editor:

1. run the game with the -editor command line;
2. click on the third button "Object";
3. select an element (e.g. lion) and move the cursor over the map: the wrong
shadow appear behind the lion as in the attached screenshot.

Note that changing sun orientation also moves the shadow. Also, disabling
shadows (shadows = false in ~/.config/0ad/config/local.cfg ) made it
disappears. Lastly, the wrong shadow is only behind the element that's more far
from the sun in the map (indeed the obelisk shadow is ok).

I reproduced this with both r300g and softpipe. There was a discussion on the
0ad forum about this but nobody was able to reproduce the problem (most are
using windows or linux with proprietary drivers).

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