Autumn Aurora 2 it's modification made by small group from Poland which brings the autumnal atmosphere to the Zone and totally overhauls the graphics, audio and gameplay of S.T.A.L.K.E.R. Shadow of Chernobyl.

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Frequently asked questions about Autumn Aurora 2 regarding compatibility, tweaks etc. UPDATED for 2.1 on 06.12.14

Posted by CrommCruac on Dec 3rd, 2013

It is a known issue that X-Ray engine may damage the quicksaves and even autosaves. We strongly recommend to make incremental "hard saves" through Save Game Menu every now and then on each map to avoid very rare but frustrating situation when X-Ray corrupts all your quicksaves/autosaves and you can't continue your game.

UPDATED for 2.1 on 27.12.14

1. Q: What version of the game this mod requires?
A: 1.0006. Works on non-Steam or Steam versions, English or Polish language. Read on if you have problems with Steam or other language versions.

2. Q: The game crashes while using Steam version
A: There is a problem with compatibility of SweetFX and Steam Overlay. Try to disable Steam Overlay in its options:

  1. Click on Steam and click on the "Settings" button. Click on the "In-Game Settings" tab.
  2. Uncheck the box next to "Enable Steam Community In-Game" and click OK.
  3. Disable the Steam Overlay on specific games only by right-clicking on the game title, click on "Properties" and uncheck "Enable Steam Community In-Game" in the "General" tab.

Alternatively disable SweetFX at all by deleting (or renaming) bin\d3d9.dll in your game directory after the mod installation.
Thanks to theTops & skacky for help.

3. Q: The game crashes on the international version other than english or polish

  1. Delete (or rename) gamedata\config\localization.ltx.
  2. Copy gamedata\config\text\zone_news.ltx to gamedata\config\text\your_language folder. Some of the newly added texts will be missing but you should be able to play the mod.

4. Q: The game crashes after changing FOV with FOV changer?

A: Do NOT use the normal FOV changer you used to. Its dlls are not prepared to work with AA2. Use the provided AA2 Option Changer instead.

5. Q: The game crashes with 'Not enought textures for shader, base tex: prop\ prop_barbwire3' log
A: You try to play on R1 (static lighting) but selected R2 (full dynamic lighting) in the installer.

6. Q: How to bring back the character voices from my language version?
A: Delete (or rename) the contents of Gamedata\Sounds\Characters_voice folder EXCEPT:
Gamedata\Sounds\Characters_voice\scenario\video\aa2_splash(two files with _l and _r)

Alternatively unpack this folder from your gamedata and copy it over.

7. Q: How hide the helmet mask overlay and turn off the breathing sound?
A: Open downloaded Autumn Aurora 2.1 pack, go to the #mod options directory and select proper directory. Then move chosen gamedata to your game's directory and replace all files.

8. Q: Why my changes in user.ltx file doesn't work after game restarting?
A: Because all user.ltx's settings are saved in Gamedata/Scripts/aa2.scripts. All you have to do it's opening this file and changing values there. You have to do it TWICE (there are two sections). For example, if you want to remove camera's head-bobbing, you need to find TWICE value: cam_inert and change it twice.

9. Q: I received FN FAL from Fanatic in the Cordon but when I'm aiming, the whole image it's blurring! How can fix it?
A: It's problem with Depth of Field center point and Fn Fal sight in the weapon HUD. You need to opening enbeffectprepass.fx file, find following value:

float 2 uvsrc=float2 (0.5, 0.46);

You need to edit value marked on the red, but remember if you will set too big/small value, image can be blurred when you will use other weapons without that problem (blurring image during aiming).

10. Q: How to remove mini-map?
A: See answer 7.

11. Q: How can I disable throwing grenades by NPC's?
A: Go to the Gamedata/Scripts and rename xrs_grenade.script.

12. Q: I want to choose different settings, for example trees style. What can I do?
A: Just re-install the AA2 2.1 and choose different settings.

13. Q: What are the system requirements?
A: This mod requires strong GPU and a lot of RAM (at least 3GB). Installing this mod can cause memory problems on 32bit systems or systems with less than 3GB RAM.The overall amount of polygons that the levels are built from doubled due to hi-poly tree replacements and denser vegetation. Because of that the average framerate dropped for about 30%. If you experience heavy framedrop or CTDs try to lower settings as screen resolution, texture quality, draw distance and object quality in advanced graphics settings and/or resolution in basic settings.
If CTD happens due to low memory try to lower the texture quality in options.

14. Q: Is it compatible with other mods?

A: Not likely, but you can try to merge it.

15. Q: The texture of the arms doesn't change when wearing different suits.
A: This feature caused too many problems comparing to just one benefit (looking nice). Disappearing weapons when changing suits, ungrouped grenades, troubles with the tasks to bring unique weapons to name just a few.

16. Q: I can't survive the emision. Where to hide?
A: Check your PDA map for possible covers. If not present on the map go to underground level.

Known Issues

1. CTD related to the wrong detection of model collision

[error]Expression: assertion failed
[error]Function: xrServer:process_event_reject
[error]File: E:\stalker\sources\trunk\xr_3da\xrGame\xrServer_process_event_reject.cpp
[error]Line: 12
[error]Description: e_parent && e_entity

Remedy: load the last save.

2. Flickering grass on the edges of the screen
Remedy: reinstall the mod and choose the lower grass distance in AA2.1 installator.

Post comment Comments
Lenny-vok Dec 3 2013, 9:24am says:

Thank you.

+5 votes     reply to comment
Guest Dec 9 2013, 1:11pm says:


i recently installed AA2, grafically incredible and we see that there was a lot of work put into but, with my high end computer (laptop) i've got an incredible drop or framerates. I reduced resloution and a few Advanced settings like it has been recommended. Still the same problem. Also after having reainstalled STALKER and the mod. How does it come to? it's unplayable =s

+2 votes     reply to comment
Vandrerer Creator
Vandrerer Dec 9 2013, 1:41pm replied:

It's heavy mod, what do you expect, mate? :-) On a laptop? Something for something.
Try to decrease grass distance if you're using larger than vanilla and be sure that you don't have enabled anti aliasing in GPU drivers.

+2 votes   reply to comment
Amoch Dec 23 2013, 4:00pm replied:

Did you save the vegetation textures in a different format? There seems to be less vegetation flickering compared to other mods I've used with increased vegetation draw length (I've only been walking around in cordon). That's good news. Still, there's definitely an issue with the vegetation and render performance compared to other mods, as the performance shouldn't vary 30fps in 1440p between walking on roads or grassy plains/hills. GSC did make changes to the render in v1.0006 (I use steam). There could be something weird going on with the render...

+2 votes     reply to comment
Kriieg Dec 22 2013, 1:41am says:

Maybe a silly question I want to make, I have 2 gb ram, in order to avoid the problems listed above system requirements, can the 3 gb enabler be used to decrease problems regarding with Ram?

+2 votes     reply to comment
Vandrerer Creator
Vandrerer Dec 22 2013, 6:02am replied:

I answered here:

+2 votes   reply to comment
Diolator Jan 13 2014, 7:51pm replied:

delete this comment pls.

+1 vote     reply to comment
Guest Jan 19 2014, 4:00pm says:

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Lightbearer Mar 10 2014, 7:13am replied:

There is a way to play steam version with SweetFX. The only thing in which steam versions of games differ is modified exe. So for Stalker SoC just get a crack v1.0006 and you have a standalone version ready for AA2.

+3 votes     reply to comment
ConstantOne May 14 2014, 5:45pm replied:

"just get a crack v1.0006" could you explain this better? Remember when offering advice, actually detail what you're talking about so people understand.

+1 vote     reply to comment
Cronnix Sep 21 2014, 2:59pm replied:

No rocket science, just google "stalker v1.0006 crack"..

+2 votes     reply to comment
maxduo Jan 28 2014, 8:12pm says:

I just installed this today and have had no other mods on the game. I turned off the Steam Overlay... yet as soon as the game starts to load, it tells me "XR_3DA.exe has stopped working." I tried deleting the SweetFX folder to no avail. I tried googling and the only solution I found at all was deleting SweetFX and reinstalling AA2... and this didn't help me one bit.

Are there any other issues or ways to fix this? Thanks.

+2 votes     reply to comment
maxduo Jan 28 2014, 8:47pm replied:

Whoops. Just renaming bin\d3d9.dl worked fine. No need to delete the sweetfx folder or anything. I guess I should leave this comment up for anyone as stupid as me to delete the folder and not pay as good of attention to question 1 of this faq right here!

+2 votes     reply to comment
Guest Jun 14 2014, 3:00pm replied:

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Guest Feb 9 2014, 4:17pm says:

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Guest Mar 1 2014, 8:58pm says:

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Guest Mar 5 2014, 6:02pm says:

How do I turn the head bob off? That's not realistic at all I don't know why people do that in games. When have you ever run and noticed a bobbing effect like that? You don't because your brain auto stabilizes the picture.

+4 votes     reply to comment
AdamPurtee Dec 28 2014, 3:57am replied:

They exaggerate it to much, along with motion blur. - Like I'm a dumb drunk bitch who can't walk right.

+3 votes     reply to comment
MTGunslinger Apr 7 2014, 8:56pm says:

Thank you, kind sir.

+1 vote     reply to comment
Guest Apr 20 2014, 11:15am says:

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krilzlocc Apr 24 2014, 9:00pm says:

i just downloaded the mod and every time i try to start the game it crashes with the message " XR_3DA.EXE has stopped working", how can i fix this issue?

+3 votes     reply to comment
eradiicate May 12 2014, 10:08pm says:

Im not sure on how to disable the mask and breathing. What do u mean by comment on those lines. Sorry newbie question IK

+1 vote     reply to comment
ragsnstitches Jul 8 2014, 8:18pm says:

Is it possible to change certain NPC models back to their vanilla versions? I would like Sakharovs original model. Seeing Kleiner from HL2 is just a little too goofy for me.

I assume I would just need to find the corresponding files in the mod and rename or delete them, but I don't know what files I'm looking for.

Other then that, great mod. Really enjoying it

+1 vote     reply to comment
Vandrerer Creator
Vandrerer Sep 5 2014, 11:40am replied:

Remove meshes/actors.

+1 vote   reply to comment
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MTGunslinger Dec 5 2014, 7:52pm says:

Something happened where i couldn't get rid of 3rd person so I deleted User.itx and validated but my fov was set back to 60 when i want it at 90. I have a download limit and cannot REDOWNLOAD the whole mod and do not have the option changer. Is there a way i can put my fov back to 90? A Download for Option Changer? Thanks and looking for your support.

+2 votes     reply to comment
Igorcngomes Dec 30 2014, 4:04pm says:

after installing the mod and try to create a new game ,i get XRay Engine error

: XR_3DA.exe Caused BREAKPOINT in module "D: \ Program Files (x86) \ Steam \ steamapps \ common \ STALKER Shadow of Chernobyl \ bin \ xrCore.dll" at 0023: 0061CC85, xrDebug :: backend () + 165 byte (s)

+4 votes     reply to comment
Guest Dec 31 2014, 12:32am says:

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Manfondler Dec 31 2014, 12:35am replied:

I forgot I had an account on Moddb....

+1 vote     reply to comment
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Split_Wig Jan 25 2015, 2:02pm says:

I've been playing since AA2 first release and love the mod very much. 10/10 imo.
I keep backups and have an AA2 directory I borrow some older features such as the binocs. I was wondering how to get the 'Human Hand' menu cursor back? If I recall the file should be in 'gamedata/textures/ui' but I don't know which one it is. Tried a few of them with no luck yet. Do you know which file it is?

Thank you!!!!!!!

+1 vote     reply to comment
miguelremoquillo Jan 27 2015, 10:50am says:

is there any way to change the audio back to english? your instructions area bit too vague for me

+1 vote     reply to comment
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Released Sep 29, 2014
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