[Bug 23012] Black sky in Gothic 3

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=23012

Henri Verbeet <hverbeet at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|regression                  |
    Regression SHA1|af7dfcd378739127c50aa95ce40 |
                   |b13eb3d1950cf               |

--- Comment #9 from Henri Verbeet <hverbeet at gmail.com> 2011-12-14 13:46:35 CST ---
As far as I can tell this isn't really a regression. I tested this with 1.1.37,
and although initially the sky is shown there, moving the camera around
introduces the same kind of blacked out sky. (And in general 1.1.37 just
renders much worse than current git.)

I spent some time debugging this, and it looks like the problem is that we
don't copy stencil data in surface_load_ds_location(). While that's not
completely impossible, it's going to be pretty slow unless the hardware
supports stencil export. As a workaround, you can set the "AlwaysOffscreen"
Direct3D registry key to "enabled", and it should pretty much render correctly.
We've avoided making that the default mostly for performance reasons, but maybe
it's time we reconsidered that.

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