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 installer displays 'missing files' error
A: Make sure you've unpacked the 7z archive without errors prior running instalator. DO NOT run the setup exe from within the archive!

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. 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).

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

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

13. 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.

14. 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.

15. Q: Is it compatible with other mods?

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

16. 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.

17. 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 says:

Thank you.

+5 votes     reply to comment
Guest Dec 9 2013 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 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.

+3 votes   reply to comment
Amoch Dec 23 2013 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
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Kriieg Dec 22 2013 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 replied:

I answered here:

+2 votes   reply to comment
Diolator Jan 13 2014 replied:

delete this comment pls.

0 votes     reply to comment
Guest Jan 19 2014 says:

I really like this mod alot, thanks for your work!

I have just one problem with it, the Steam version crashes even if the overlay is disabled. Only solution is disabling SweetFX. Is there any way you can work around that in the future? Do you use SweetFX just for AA/sharpness or also for color changes?

+1 vote     reply to comment
Lightbearer Mar 10 2014 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 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 replied:

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

+2 votes     reply to comment
maxduo Jan 28 2014 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.

+3 votes     reply to comment
maxduo Jan 28 2014 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!

+3 votes     reply to comment
Guest Jun 14 2014 replied:

do you rename the d3d9.fx file as well?

+2 votes     reply to comment
Guest Feb 9 2014 says:

Sorry for the nooby question, but I've been told to look for overhauls that include a freeplay mod. Does this come with this mod?

+1 vote     reply to comment
Guest Mar 1 2014 says:

I notice it's possible to turn off the mask for the HUD

But I was wondering how to change masks?

The exoskeleton mask is much too distracting for me and I'd like to change it to another one.

+1 vote     reply to comment
Guest Mar 5 2014 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.

+6 votes     reply to comment
AdamPurtee Dec 28 2014 replied:

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

+4 votes     reply to comment
MTGunslinger Apr 7 2014 says:

Thank you, kind sir.

+1 vote     reply to comment
Guest Apr 20 2014 says:

I have a problem with localization, I´ve follow FAQ instruction for get Audio and text dialog in my language, but the colour of text in dialog window is black and i can´t read anything. Could you help me to how change the colour?

Thanks and sorry for my english :/

+1 vote     reply to comment
krilzlocc Apr 24 2014 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?

+4 votes     reply to comment
eradiicate May 12 2014 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 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 replied:

Remove meshes/actors.

+1 vote   reply to comment
Guest Oct 19 2014 says:

I had to find out the hard way that quicksaving caused corrupt savefiles (shame on me for not reading the FAQ properly), however, after restarting again today and staying away from QS'ing, I decided to to use a fast-travel via the main-menu+J to move to the bar from cordon. Moving to the Bar area caused a CTD with the same error I got after the quicksave corrupting my savegames ([error][ 87] : The parameter is incorrect. OR [error]Arguments : Can't open section 'ac'). All previous saves had been corrupted as well after this CTD, giving the same error over and over again.

I know it's not your fault that the Xray engine is buggy as hell, but these bugs/glitches/whatever make playing and enjoying AA 2.1 quite hard. If you ever find a fix for this problem, please let me know, as I really enjoy this mod so far.

+1 vote     reply to comment
MTGunslinger Dec 5 2014 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 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 says:

So I just picked up the Stalker Pack on Steam and I heard that this mod is one of the best mods for the game. I've been trying to install it today, but I've ran into some issues with getting patch 1.0006 installed. After looking at a post on HardForums, I found a solution that mostly worked... I had to do a bunch of things to get my steam version into a retail version, so that the unofficial patch would run, yet I've ran into some issues with actually running the patch. Is there any easier way to get the 1.006 version?

+1 vote     reply to comment
Manfondler Dec 31 2014 replied:

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

+1 vote     reply to comment
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Split_Wig Jan 25 2015 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 says:

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

+2 votes     reply to comment
harrymarshalluk Apr 19 2015 replied:

I'd like to know this too please.

+1 vote     reply to comment
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KMartinR4 Jul 20 2015 replied:

I got the same problem but on the final lab. After the door to the monolith hologram opens all my saves are broken. I hope someone knows the solution.

+1 vote     reply to comment
litosns Apr 4 2015 says:

I must say its impossible to fix FN FAL dof problem without creating another one.
Setting 0.47 to 0.48 fixes it but breaks SPAS12
Setting it to 0.475 wont fix FN FAL and wont break spas12
Setting it to anywhere between 0.477-9 breaks both.

So its impossible to fix. The best way to do it is to press SHIFT+ENTER in game and disable DepthofField option

+1 vote     reply to comment
Varka Apr 10 2015 says:

The PDA map only shows possible shelter from emission by the rookie camp and the tunnel nearby it in Cordon. Are there anymore surface level shelters?

Also not all underground levels are safe either, even in the rookie camp, the only thing is safe is Sid's place behind the metal door and that's the only place underground I've been safe at so far.

+1 vote     reply to comment
jbrawnyman Apr 14 2015 says:

When I use the mod option "#Disabling mask's layer + breathing sound" file, it removes the weapons icons in my inventory along with the mask and breathing sound. I would prefer to keep the weapons icons and just remove the mask. Anyone have a solution to this minor problem?

Still even with the mask overlay this mod is amazing and I am enjoying it!!! Great work.

+1 vote     reply to comment
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Voker00 Jul 7 2015 says:

Why can't i put a PSO-1 Scope on my AS-VAL,this was a feature in the original game,wasn't it? :)

+1 vote     reply to comment
Metalhead47 Jul 8 2015 says:

Hi, I have the spanish version of the game, patched to the 1.0006 version.. I did the step 3.1 , delete or rename de localization file, and nothing.. and when I tried to copy de zone_news file, there wasn't a folder with spanish language, just eng and pol.. I just want to know if I need to download the english version of the game, or if there is any way I can fix this problem, thank you :)

+1 vote     reply to comment
KMartinR4 Jul 20 2015 says:

Guys I have a serious problem with the savings! On the latest lab's level (After I talk with the C-Consciousness), I can't go further! When I go to the next level, the game crashes, and crashes, and crashes. And I still can't reload the previous save neither! After the door opens to the Monolith hologram, all my saves are corrupted! Normal saves, fast saves, autosaves, ALL OF THEM!
There's no information about what happens, nothing! It's just crashing, or gives the standard X-Ray engine got a problem notice, but nothing else! Someone help, It's just so annoying that I'm at the end-game and just can't finish it!

I didn't make anything with the mod, I only rewrited the m_stalker and other ltx-es, to make stealth available, and changed the gorza's slot to the first and put in better nightvisions - but it didn't make any sense and I don't think it's a problem, because it never was!

Please if someone knows the solution, share it!

+1 vote     reply to comment
MitchellBoyed1776 Aug 6 2015 says:

Hello I know it's very likely all ready been asked and it's in the FAQ but can't seem to bring back the English Audio instead of the Russian since this game has no real subtitles it's hard to understand whats happening.

+1 vote     reply to comment
Msteps Aug 12 2015 says:

Hey CrommCruac I did retexture for your mods menu, maybe you could check it out and tell me what you think about it, and if you could use it. By the way you, did an awesome job with your mod.

+1 vote     reply to comment
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S.T.A.L.K.E.R. Shadow of Chernobyl
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