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Texture Gremlins (rendering error/corruption/artifacting)

Winter Ventura
Eclectic Randomness
Join date: 18 Jul 2006
Posts: 2,579
08-29-2007 00:44
Okay, it's a new system, brand new videocard. (specs to follow). Latest drivers, yadda yadda.




Here's the facts. All seems to work well until SL builds up it's memory useage to around 500 megs of ram (takes about 3 minutes). textures look good until this point. Once we get into the 550+ range, randomly selected textures will begin displaying these "gremlins". Little bits of data that are not where they should be.

The textures look perfectly fine prior to this.

But here's the weird thing. Leaving the area, and coming back (even just walking 40m away) will cause some textures to appear properly, while others will randomly be selected to host this issue. Sometimes the problem is worse than other times.

Texture size doesn't seem to be a factor, neither does bit-depth. Happens to textures I've uploaded AND textures that other people have uploaded.

The issue seems to be hardware related, and a sort of "roaming issue" sometimes it's skin, sometimes a shirt, sometimes a logo on the ground, or a vendor.. and I know it's just me who's seeing the issue. And no.. Clearing the cache, didn't help.

So here's the specs.. makybe someone can help me figure this out? Most everyone I've talked to says it looks like the video card is "on the way out" which is a pity, since it's like a month old.

--------------------------------------------
Second Life 1.18.0 (6) Jul 11 2007 11:18:55 (Second Life Release)
* It's not the version number.. tried using the voice viewer with the same isse, I just reverted for other reasons *

CPU: Intel Pentium 4 Northwood (2539 MHz)
Memory: 2048 MB
OS Version: Microsoft Windows XP Service Pack 2 (Build 2600)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce 7600 GS/AGP/SSE2
OpenGL Version: 2.1.1
LLMozLib Version: 1.1.0 (Mozilla GRE:1.8.0.12_0000000000)
Packets Lost: 1662/189070 (0.9%)
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Thili Playfair
Registered User
Join date: 18 Aug 2004
Posts: 2,417
08-29-2007 03:22
You have either;
* corrupt memory > test with http://www.memtest.org/
* defect vid card / overheating

That would be my first guess on those artifacts happening, can happen if you overclock pc to.
Debbie Trilling
Our Lady of Peenemünde
Join date: 17 Oct 2006
Posts: 434
08-29-2007 03:29
I experienced this exact thing once using a GeForce 7900 GT OC 256Mb PCI-E purchased from Ebay.
Turned out the card itself was faulty & replacing it cured the problem.