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Flickering Object Shadows (Mods : STALKER Complete 2009 (2012) : Forum : General Discussion : Flickering Object Shadows) Locked
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Dec 25 2009, 4:59pm Anchor

I recently upgraded my computer, and I can now run STALKER with absolutely no issues whatsoever. So, naturally, I began using this as my go-to mod to make it look better. I seem to be having a lighting issue related to Full Dynamic Lighting; whenever I switch it to FDL, the vegetation and some textures like to mess up their shading. It's maybe 1 in 25 textures goes completely black across the entire landscape. The really weird thing is that it changes whenever I move in the slightest; every time I move, a new set of bushes or gravel goes black. If this has already been addressed, please direct me to the fix, I didn't see it.

Please note that this is NOT the shadow artifacts bug AFAIK; that one is taken care of as per the changelog.

Thanks in advance for any help,
Jonathan Stephens

Dec 26 2009, 11:17pm Anchor

Hi Jonathan, we've been trying to identify this issue on Steam forums, someone even posted a video, please check if it's the same:

Forums.steampowered.com

Dec 28 2009, 4:46am Anchor

Yes, that's the same issue. Thanks for the quick reply.

Dec 28 2009, 7:02pm Anchor

stupid faulty ati shader bug those straight parallel black lines are the SSAO artifacts also called shadow glitche.

never occured on nvidia cards if Im right.

Dec 28 2009, 7:10pm Anchor

Computer Specifications:

CPU: Athlon x4 940 Black
GPU: NVidia GTX260
Motherboard: M3N78-VM
RAM: 3 GB of 800MHz DDR2

Dec 28 2009, 7:16pm Anchor

diablow,  SSAO artifacts appear on both ATI and Nvidia, and even with official GSC shaders, I played Call of Pripyat without any mods and black lines were still there. 

Daishi2442
, I think the guy on Steam forums solved it by tweaking user.ltx?

Dec 28 2009, 7:20pm Anchor

I was told its a specifig shader bug which only occurs on ati card but I dont know I dont have a nvidia and I only heard this complaint from people with ati cards so I thought the comment was true.

maybe I mixed it up with the shadow wall bug which haunts the player with a shadow wall moving in front of him.
at least for this I had a fix getting the border as close to the player with sun near 1.

yes I also had this in cop.in all stalker games soc cs and cop.

Edited by: diablow

Dec 28 2009, 9:26pm Anchor

Pavel, I tried what the guy said, and it didn't seem to have any effect.

Dec 29 2009, 4:42am Anchor

He probably done something else, like reinstalled drivers, and thought it was user.ltx settings. I normally collect all feedback and form a solution but currently I don't have an answer for that, sorry.

Dec 29 2009, 5:10pm Anchor

Ok. Thanks for trying. :)

I figured out what it was. I noticed a common trend among the people complaining of this problem. We all had NVidia 3D drivers installed. Even though mine were inactive, they WERE installed. I uninstalled them off of my computer completely and the glitch is gone. Perfectly working SoC with SC2009. Thanks for the help guys, and make sure to spread this around. :)

Also, as a test, I reinstalled the drivers, and the bug returned.

Dec 31 2009, 7:01am Anchor

This will be useful, thanks for posting :thumbup:

Edited by: Artistpavel

Jan 27 2010, 10:44pm Anchor

I'm currently running 1.0006 with Stalker Complete 1.4.3.2 and having Black Vertical Bars when looking at the sun. I'm not having the strobe problem, just the bars.

I'm going to try the fixes mentioned above and look into the 3D driver issue as well, though I don't think I've ever used that.

Vertical Black BarsI Guess I cant seem to get the attachment to work properly, sorry.

NVM, I not smart enough to post image, lol.

Parallel thread here at

dslreports dot com forward slash forum forward slash r23715249-Stalker-Complete-1432

 cause its easier to post images.

Edited by: rpggm

Jan 30 2010, 4:51am Anchor

I solved my vertical bar problem by changing r2_sun_near_border and r2_near_border to 20 and 1 respectively.

Feb 9 2010, 6:55pm Anchor

Thank you for figuring this out!!  It's been bugging me a LOT, now I just have to convince my brother that he really doesn't NEED to play games in 3D :P

Feb 10 2010, 9:10pm Anchor

Hehe. No problem mate, glad it helped someone. :)

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