https://bugs.winehq.org/show_bug.cgi?id=41318
--- Comment #2 from blog@pozimski.eu --- Sorry if I drew the wrong conclusions from the behaviour and error messages I got from the game and wine itself. I have to rely on git bisect here which pointed me to the commit I mentioned in the initial report.
There are a few things I don't quite understand yet. If I understand your reply right, "binormal vectors" is a feature that simply isn't implemented in wine yet which would make this a missing feature rather than a regression. However the game worked just fine with wine versions back to 1.8.x (maybe even earlier versions, didn't try any older ones) without installing any additional dlls which led me to believe I encountered a classical regression. Was the the feature present in these versions and removed later or was the functionality implemented in the earlier versions "different" in a way that the missing feature didn't matter and the game was rendered properly anyway?