Lighting Problem, weird colors

**weltall** · 09-12-2010, 07:48 AM

doubt I ran the game with root permissions since the first scenes as it was crashing accessing the archives and still I got it some times.

**FreonTrip** · 09-12-2010, 09:15 PM

(09-12-2010, 07:48 AM)weltall Wrote: doubt I ran the game with root permissions since the first scenes as it was crashing accessing the archives and still I got it some times.

Well, I'm afraid that I spoke too soon... the problem randomly reappeared last night. Taking some screenshots will probably be of use to the Frictional code jocks... I'll see what I can manage before the end of the day.

**Nemoder** · 09-13-2010, 08:49 AM

Definitely not a file permission issue as I had it installed in my home dir. It kept showing up after a few mins from reloading until I gave up and played a different game. When I started Amnesia again I was able to play through the entire rest of the game without it messing up at all. I really think this is a problem with the nvidia driver though I've no idea what triggers it.

**corTeX** · 09-13-2010, 08:49 PM

Same here, Green/Blue overlay where there probably should be lighting, appearing randomly if I restart the game.

What I noticed is that the actual color depends of the mouse/look direction, as if Green cycled (fast) on the Y and Blue on the X coordinate (or the reverse).

Debian Sid 64bits, geForce GTX 260, Nvidia driver 256.35; everything installed and running as the main user (no root involved)

**Dgn** · 09-16-2010, 03:21 PM

Im experiencing the same problem.

The lighting on objects cycles through several colors (quite ruining the mood to be honest)

Ubuntu 10.4; 64 bit.
NVIDIA Driver Version: 195.36.24
Graphics Processor: Quadro FX 770M

Do you need any reports or whatever to solve this?

Edit: Doesnt happen all the time apparently.. had a good run right now. No changes, no logging in/out, same programs open in the background, .. But none of the glitches!

**Prophet5** · 09-19-2010, 03:53 AM

Same issue here but I set SSAO samples down from 16 to 8 and haven't had the problem since, although I'm not willing to give this a definitive "Problem Solved" just yet as I haven't replayed in areas where the problem occurs. Setting SSAO to High also seemed to fix this but I had a slight performance hit. People could also try disabling SSAO

btw I'm on nvidia GTX260 with 195.36.24; Kubuntu 10.04.01 KDE 4.5.1; Core2duo 2.4Ghz; 1gig mem

**superluser** · 09-19-2010, 04:15 AM

I've got a video of it. Tried uploading to youtube, they decided that the video was just pure green and replaced my video with one that was that instead. So I'm linking to it.

http://www.lij.li/out-4.ogv

I may delete it in the future.

nvidia 9600gt nvidia-drivers-256.53

**Urkle** · 09-20-2010, 06:43 PM

superluser, thanks for the video.
All, how much RAM does your video card have?
Have you tried lowering or disabling shadows to see if that fixes the flashing?

**Prophet5** · 09-24-2010, 04:39 AM

My GTX260 has 896Mb. However after a good couple of hours play, the problem re-appeared for me regardless of SSAO settings. See... NOT a definitive Problem Solved Smile

**WHiTeRaBBiT** · 09-24-2010, 04:48 AM

(09-20-2010, 06:43 PM)Urkle Wrote: superluser, thanks for the video.
All, how much RAM does your video card have?
Have you tried lowering or disabling shadows to see if that fixes the flashing?

I think you hit the nail right on the head.
Turning shadow and/or SSAO resolution down prevents the problem more often, the lower the quality the less likely it will happen. I think its also dependent on each level and how much memory is being used overall, so a matter of balancing settings on average to work well through whole game. In my case I'm running Debian Sid on an GeForce 8800 640m and choose to keep shadow map resolution high and SSOA on medium. I've also had similar issues running Nexiuz/Xonotic and found turning down shadow resolution, texture resolution and anything else that consumes GPU memory will help.

Thanks Urkle Big Grin