Now, this is almost certainly not the right section for this post, but sod it.
For the last week and a bit, my cave textures have looked like they've been nicked from the future episode of Spongebob. Take a look here: (Note, this is from my recent map release, but this is an issue in retail and other custom maps) http://steamcommunity.com/sharedfiles/f ... d=94266869 A couple of retail maps: http://i.imgur.com/n0XN5.jpg http://cloud.steampowered.com/ugc/90209 ... 7EF697463/
I've verified the cache, updated my drivers, reseated my GPU, even upgraded to Windows 8 since this has happened, and it still happens (For the record, I'm on a nVidia GTX560 Ti).
It isn't just me having the issue however. Many people on the Steam Forums are complaining of Chromed cave textures (namely blendrockdirt_tunnel3b and blendrockdirt_tunnel3a) throughout Chapter 6 and onward. Basically, if these textures appear, they're chrome. Supposedly, dropping down to anything under the High shader option fixes the issue (though obviously this looks like utter shite on a big monitor :3). Another solution is disabling specular reflections alltogether, though this is a pretty impractical fix really.
I've tried digging through the VMT file to see if I can solve the issue, though it seems that the original VMTs in the VPK takes priority no matter what I do with the GameInfo.txt (before someone asks, I've tried /Materials in Portal2, Portal2_DLC1 and Portal2_DLC2 to no avail.)
Does anyone have a solution for this? People have reported this to Valve, and since it only came when Portal 2 updated a week and a bit ago I'd expect it not to be too long before they fix it (though it took them ages to patch Left 4 Dead when that had texture issues...)
Steam threads about this issue:
http://forums.steampowered.com/forums/s ... ?t=2910141
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