Radeon 7770 Texture Flickering/Shimmering

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dragearen

Honorable
Jan 30, 2013
24
0
10,510
Hi there. I've been having a problem, with many games, but it is especially bad with World of Tanks. The edges of textures and shadows seem to flicker when I move or pan the camera. I have tried everything I can think of, including forced AA/anisotropy through RadeonPro and also clamped LOD bias. The forced AA and LOD bias both worked, but made the game so dark I could barely see anything (the only other game they had this effect on was Planetside. All other games were fine gamma-wise).

Here is a video showing my problem:
http://youtu.be/BGavSHkOKsM

My specs are:
Pentium G860 Processor
Radeon HD 7770 1GHz
4GB RAM
Windows 7 64-bit
 
Solution
nukemaster
AMD is up to 13.9 for your card. I do not think this is a driver issue however.

You seem to be using FXAA. a very fast mode that is not quite as good. it may cause some shimmering(that looks like an AA issue.)

You can try that off and other forced AA methods but simply put some shimmering seems to happen in most newer games. bump maps and other things do not get AA or AF treatment either(FXAA does help those to an extent as does super sample, but it is VERY hard on a video card).

Your video does not honestly show me any thing to worry about.
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nukemaster

nukemaster

Titan
Nov 23, 2004
19,626
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74,965
That looks like a game draw distance limitation.

In order to preform better, many games will use lower quality textures and polygon meshes at distance. Some games allow you to increase the draw distance while others do not.

You tried 16 x AF(not AA?) With low levels you can see the blurred textures moving into the sharper ones.
example-af.jpg
 
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dragearen

Honorable
Jan 30, 2013
24
0
10,510

I have the latest drivers that are out, 13.2. I have not used a driver sweeper however.

Edit: Actually, that's incorrect. When I updated from the stock drivers to 13.1.5, I used a driver sweep. It did not solve my problem, and so I updated to 13.2 when that came out, hoping that would work. It did not either, so I doubt it is old drivers.


The thing is, this occurs on just about all games (with a few exceptions) that I play, and can occur on very near objects. It also occurs mostly on textures that repeat, or on very fine edges.

I tried manually overriding AA, and it did help some, except on World of Tanks, where it mysteriously killed the gamma and made it impossible to see. I believe Planetside also had a similar effect. Simply raising the gamma made everything look very washed out and pale.

Edit: I just tried three things, which seem to have helped a great deal more than any step I've taken so far. I turned off surface format optimization, I lowered my monitor sharpness, and I finally figured out how to raise my resolution to 1920x1080 without having black borders on the edges of my screen. Yay! Still not perfect, but better. After a bit of testing, it seems that monitor sharpness has a great deal to do with it. When I tried raising my sharpness to 90, I was getting some terrible flickering. Lowered to 20, almost all of it went away. I'm still having some issues with distant shadows (though that may be a limitation of the game engine as well), and some much more minor flickering, but it is much better.

Edit2: Not sure what happened, but suddenly shadows are flickering again, and grass just looks terrible whenever I move.
 
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nukemaster

nukemaster

Titan
Nov 23, 2004
19,626
6
74,965
AMD is up to 13.9 for your card. I do not think this is a driver issue however.

You seem to be using FXAA. a very fast mode that is not quite as good. it may cause some shimmering(that looks like an AA issue.)

You can try that off and other forced AA methods but simply put some shimmering seems to happen in most newer games. bump maps and other things do not get AA or AF treatment either(FXAA does help those to an extent as does super sample, but it is VERY hard on a video card).

Your video does not honestly show me any thing to worry about.
 
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