[Bug 37424] Path of Exile: Graphical Glitches with GLSL Disabled

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=37424

--- Comment #9 from Sovyn <teddy5978 at gmail.com> ---
(In reply to Stefan Dösinger from comment #8)
> I haven't looked at the details yet, but my guess is that the game switches
> between fixed function fragment processing and pixel shaders without
> changing any pixel shader constants at the same time. In the GLSL ffp
> replacement shader bump map constants are separated from pixel shader
> constants. In ARB they share the same global constant "namespace".
> 
> Henri's patch probably doesn't trigger a constant update in this case since
> it is not needed in GLSL. If my theory is right the solution may be to
> trigger a constant reload in shader_arb_select if the previous draw did not
> use a pixel shader, but the current one does, or vice versa. I believe such
> a reload is already triggered somewhere, but I can't find it right now.

I really appreciate your response Stefan and hope you have a little time to
help out the Path of Exile on Wine community by taking a further look at the
details. If I can help in any way, please let me know.

I have also attached a short log file above (file name: log_d3d_fixme). I'm not
certain the problem shows up as output in the log, but it was happening on
screen four times during the log so hopefully. I did remove most of the
duplicate lines and sections for easier read.

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