[Bug 43932] New: Fallout 4 (Steam): Low detailed LOD exterior Meshes are rendered Inside interior cell

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=43932

            Bug ID: 43932
           Summary: Fallout 4 (Steam): Low detailed LOD exterior Meshes
                    are rendered Inside interior cell
           Product: Wine
           Version: 2.18
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: winehq at spam.b2ag.de
      Distribution: ---

There is a bug where in Fallout 4 low detailed LOD exterior meshes are rendered
inside interior cell. Screenshots of user "me." from inside the Museum in
Concord: https://imgur.com/a/v91oI

If one toggles clipping and views it from outside, than it seems there is some
artificial border which could well define which parts shouldn't get rendered. I
highlighted the border in the following screenshot. https://imgur.com/a/0xXhu
It looks like a real sharp shadow. Ground texture is the same on both sides of
the border, only lighting differs hugely. Maybe we are lacking some vertex
clipping of any form here.

One workaround is to disable LOD when inside of building by using "tll"
(ToggleLODLand) console command. It will also disable distant LOD meshes
outside of buildings. One needs to toggle it whenever entering or leaving
interior cells, which makes it a quite annoying workaround.

I was using Arch Linux Wine 2.18-staging with dsound-sleep-patch and AMD R9
280X GPU with Mesa 17.2 at time of writing.

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