[Bug 34052] The Witcher: Character models are sometimes invisible

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=34052

Stefan Dösinger <stefan at codeweavers.com> changed:

           What    |Removed                     |Added
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                 CC|                            |stefan at codeweavers.com

--- Comment #42 from Stefan Dösinger <stefan at codeweavers.com> ---
Created attachment 50908
  --> https://bugs.winehq.org/attachment.cgi?id=50908
wined3d: Reorder shader constants.

Can you give this patch a try? It may fix the bug.

The issue here is that The Witcher reads past the end of the vertex shader
constant array and gets an undefined value back. On paper d3d promises to
return (0.0, 0.0, 0.0, 0.0) in this case, which makes The Witcher happy. In
practise d3d isn't reliable either, but reads > 255 return 0 and reads < 0
return other data.

If you have two GPUs please test this patch with both of them. There's a risk
that this patch fixes Nvidia GPUs and breaks others.

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