[Bug 23012] Black sky in Gothic 3

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

--- Comment #11 from Henri Verbeet  2011-12-14 14:52:09 CST ---
(In reply to comment #10)
> Also I couldn't see much of a speed difference between AlwaysOffscreen on/off,
> but I tested only a little bit.

It evens about out when we have to share depth/stencil data between onscreen
and offscreen rendering. Sometimes it's even a little faster in that case. But
keeping it disabled is typically somewhat faster for the case where we never
have to copy the depth data.