White lines in dark areas with AA turned on...

[kappa223]

I've read a little about it already and it sounds to me like something that just cannot be fixed, however I wanted to assure this is normal with AA turned on just in case It could be an issue with my video card.

Appreciate the help, thanks.

BTW: I have all of the latest drivers for my x1900xtx installed.

 

[$kelet0r]

screenshot please

 

[kappa223]

http://forums.nvidia.com/index.php?act=Attach&type=post&id=1577

http://forums.nvidia.com/index.php?act=Attach&type=post&id=1576

 

[$kelet0r]

I don't see any white lines :|

edit - oh you mean those flecks of brightness? are you sure that isn't just the texture differences?

 

[kappa223]

Yeah, but the odd thing is they go away with AA turned off. I can't figure it out.

 

[Sparda]

Is this what you meen?

 

[kappa223]

yeah that is exactly what I was refering to.
:thumbs:

 

[Sparda]

Well to me they just look like pipes and crap to me, but then agane i'm not sure.

 

[Xenome]

Got the exact same problem..I recognized the lines immediatly in your screenshots. It's not only in dark area's btw..when you first exit the trainstation at the beginning of the game you can see them as well..well I can at least (on the street to the right).

I made multiple threads about it on multiple forums but it just seems like something that cannot be fixed

( I have an Nvidia XFX 6800 GT btw, also ONLY with AA turned on)

 

[kappa223]

I appreciate your post, knowing that this is a common issue takes a load of stress off my mind since I was ready to drive into town to return a defective video card....

seems like it is just some sort of bug with AA on there. By the way, could you send me to the post you made about this problem? I would like to search through them if you don't mind just to read up on what others think.

 

[Xenome]

I wouldn't really call it a 'common' issue, cause you are one of the first I 'see' that has the same problem as me.
It is possible that alot of other people just don't notice it, or don't bother with it.

Here's the link:
http://www.halflife2.net/forums/showthread.php?t=95552

(I have made larger threads on other forums but I cannot seem to find them..no solution was given in any of the threads anyway, just some people with the same problem)

 

[kappa223]

Well I know it can't be too terribly uncommon because I found those screenshots on another website in another forum from someone else with our exact problem.There were two or three others mentioning this problem as well but none of them seem to have a work-around for it.

 

[Shodan]

I get this, in many games, I've never found a fix for it I'm afraid.

I've honestly thought it was only to do with Textures and mapping.

Sorry I couldn't be more help.

Edit: I have a 6600GT 256MB.

 

[Ridge]

Yeah it looks like gaps in the textures...how many megs is your vid card?

 

[Drackard]

Yeah i get that in a few games aswell, not too sure exactly what causes it, i usually just crank up the settings in my CCC and it seems to bugger off

 

[Sparda]

Edit: I have a 6600GT 256MB.

I have the same and i have never had the problem (That i know of)

 

[Xenome]

Maybe we could all post our system specs, to see if there might be another cause..

Mine:

Asus P4P800 non-deluxe
Intel P4 2.8 ghz 800 fsb
Nvidia XFX 6800 GT 256 mb
2x512 twinmos pc-3200 dual channel.
480W antec true-power PSU

 

[Drexion]

This is a common issue in many games when AA is turned on, its nothing to do with HL2, its to do with the AA algorithms used by nvidia/ati and the way that textures/geometry on edges may either be cut or not when color corrected.

Honestly I'm not 100% sure of the exact cause, but its normal (so to speak) and I suppose that its way at the bottom of things on nvidia or ati's to fix list.

 

[Wojo]

Lightmap Problem with Multi-Sampling

I decided to post a reply to this thread because I attacked this problem in my own lightmap generator.

As previously stated by Gabe Newell of Valve,

http://www.halflife2.net/forums/showthread.php?s=&threadid=3071

All of the polygons from the scene are tightly packed into lightmaps. Depending on the packing algorithm, a dark polygon could be put right next to a light one. This is where the problem occurs.

The white lines that you are looking at are a dark polygon's neighboring lightmap texels. The lightmap clearly does not correctly account for multi-sampling; therefore sampling neighboring texels will give you colors from a polygon with totally different lighting!

In fact, you are seeing an error EVERYWHERE in HL2. But, as it happens, you dont notice it most of the time because the colors are close enough to what is correct. Thats why most people are noticing the 'white' lines in dark areas of the game.

This problem is even more apparent if mipmaps are created for the lightmaps.