[Bug 46558] win64 dotnet Space Engineers fractal noise generation broken

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=46558

--- Comment #8 from BabbleBones at gmail.com ---
Issue has been found!

The game decodes a 16 bit grayscale png and uses that for height information on
the planets. Somehow the png may be getting truncated on read.

What it truncates into I am not sure but it may be an 8 bit value that would
wrap around and swing the terrain generation in crazy directions.

Saving the images back to disk as 8 bit grayscale png seems to solve the issue.
Please see: https://github.com/ValveSoftware/Proton/issues/1792

How is png conversion from 16bpc gray to 8bpc gray handled? Is it an external
lib or internal implementation?

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