On linux (I can’t remember whether I saw this on Windows version), just prior to the scream animation of the Meruna Sirens in Logon’s Isle, the mob can be seen flashing several times in very quick successions (less that 0.5 sec).
Based on all the incidences you are finding of this, I am beginning to suspect that this is more general Linux specific “white flash issue” that may be common across various animations.
Does the game quality setting have any impact on this? e.g. does it happen on very low settings or only on say Very High?
I’ve tried tried low/high settings and resolution changes, but it didn’t seem to affect the bug. I don’t think there’s other mobs that are affected as well.
I think another possibility is bug in the shaders. It’s possible that for some reason, a bug in shader values causes the drivers this halo like (div by zero, etc) where other shaders just return transparent values (like 1s instead of 0s).
I can also confirm, as I just tested, that this does not happen when I use the Windows version via Proton7 (Steam compatibility) environment. So this is indeed likely related to the switch between the OpenGL stack and the DirectX emulation stack, which is re-implemented on top of Vulkan (via DXVK for DX9/10/11 & VKD3D for DX12).
This is the same observation as for other issues: if one is willing to forgo a little bit of performance, the Windows version (even translated/emulated) is less buggy than the Linux native version.
Thanks for testing that to confirm… There are other Linux only graphical oddities (like the purple character selection screen) so its very likely that your guess about the different graphical processing APIs and whatever gymnastics is happening to make them work cross platform are probably the cause.
