Alan Wake Godrays broken

[LeJimster]

I wasn't sure where to leave this bug, as it happens on both vanilla wine and gallium-nine.

The godrays feature is broken in this game, left is windows, right is wine:

Apitrace
My system info

[axeldavy]

Are you sure gallium-nine is enabled ? Here while wine shows the issue, it works ok on nine.

[LeJimster]

I just double checked it in nine and it's broken for me. For me it looks the same in nine and vanilla wine.

[axeldavy]

Have you tried to run the trace directly with nine to check if it's the trace vs what the game does when wine is detected ? Which version of mesa are you using ?

[LeJimster]

The trace I did was from windows, I can try attempt a trace on linux with wine/nine.

I'm using a recent mesa-git
Mesa 18.3.0-devel (git-2c1f249f2b)

[axeldavy]

I use Ixit master, perhaps there's a commit on top of it that fixes the issue, I'll check mesa git.

[LeJimster]

I tried replaying the trace with nine and it runs through the scene and as expected godrays is broken. I tried the same with wine, but all I get is a black screen after the trace gets into the menus.

I have also created another trace in wine with nine enabled of the same scene if that is any help, let me know I will upload it.

[axeldavy]

I bisected our repo and found the commit that fixes the issue is:
c172f79

The commit wasn't merged into mainline mesa because it hits slightly performance, while we hadn't found any game requiring it. I guess now we have one.

[LeJimster]

Shame it hits performance slightly, but if it's a small enough impact it might be worth upstreaming. There is an Alan Wake sequel, that likely suffers the same issue (I don't have it to test).

I can try building Ixit master if you need any further testing to confirm. Although I'm a little rusty when it comes to building/installing mesa manually.