[Bug 16501] Some moving objects in Myst IV - Revelation turn black on most camera angles

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=16501





--- Comment #12 from Lisa Denia <eiffel56 at gmail.com>  2009-07-04 08:05:42 ---
I finally got some time to dig into the source, and I found a solution. Maybe.
As there weren't any useful hints in Wine's output, I started adding "Just
return if I pressed F12" patches to various, often used functions. It turned
out that SetRenderState does something related to this bug. If it gets disabled
during runtime, the screen will get totally messed up(you may have guessed...),
BUT all that moving objects are rendererd correctly.
So I tried a couple of things, including just ignoring several states. Ignoring
WINED3DRS_EMISSIVEMATERIALSOURCE prevents the objects from turning black, by
introducing new bugs in the UI. So I traced what is done when, and the attached
patch resulted ;).
As far as I can see, it fixes all black objects. Tested in Tomahna, Spire and
Haven, everything looks perfectly nice. Also the UI looks like it should, in
contrast to just ignoring WINED3DRS_EMISSIVEMATERIALSOURCE.

I wonder if this patch will be considered as clean(and should be committed
then) or not. Any suggestions appreciated.

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